chore: bump version to 0.14.4

Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>

.github/scripts/update-dev-builder-version.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+DEV_BUILDER_IMAGE_TAG=$1
+
+update_dev_builder_version() {
+  if [ -z "$DEV_BUILDER_IMAGE_TAG" ]; then
+    echo "Error: Should specify the dev-builder image tag" 
+    exit 1
+  fi
+
+  # Configure Git configs.
+  git config --global user.email greptimedb-ci@greptime.com
+  git config --global user.name greptimedb-ci
+
+  # Checkout a new branch.
+  BRANCH_NAME="ci/update-dev-builder-$(date +%Y%m%d%H%M%S)"
+  git checkout -b $BRANCH_NAME
+
+  # Update the dev-builder image tag in the Makefile.
+  gsed -i "s/DEV_BUILDER_IMAGE_TAG ?=.*/DEV_BUILDER_IMAGE_TAG ?= ${DEV_BUILDER_IMAGE_TAG}/g" Makefile
+
+  # Commit the changes.
+  git add Makefile
+  git commit -m "ci: update dev-builder image tag"
+  git push origin $BRANCH_NAME
+
+  # Create a Pull Request.
+  gh pr create \
+      --title "ci: update dev-builder image tag" \
+      --body "This PR updates the dev-builder image tag" \
+      --base main \
+      --head $BRANCH_NAME \
+      --reviewer zyy17 \
+      --reviewer daviderli614
+}
+
+update_dev_builder_version

.github/workflows/release-dev-builder-images.yaml

@@ -24,11 +24,19 @@ on:
         description: Release dev-builder-android image
         required: false
         default: false
+      update_dev_builder_image_tag:
+        type: boolean
+        description: Update the DEV_BUILDER_IMAGE_TAG in Makefile and create a PR
+        required: false
+        default: false
 
 jobs:
   release-dev-builder-images:
     name: Release dev builder images
-    if: ${{ inputs.release_dev_builder_ubuntu_image || inputs.release_dev_builder_centos_image || inputs.release_dev_builder_android_image }} # Only manually trigger this job.
+    # The jobs are triggered by the following events:
+    # 1. Manually triggered workflow_dispatch event
+    # 2. Push event when the PR that modifies the `rust-toolchain.toml` or `docker/dev-builder/**` is merged to main
+    if: ${{ github.event_name == 'push' || inputs.release_dev_builder_ubuntu_image || inputs.release_dev_builder_centos_image || inputs.release_dev_builder_android_image }}
     runs-on: ubuntu-latest
     outputs:
       version: ${{ steps.set-version.outputs.version }}
@@ -57,9 +65,9 @@ jobs:
           version: ${{ env.VERSION }}
           dockerhub-image-registry-username: ${{ secrets.DOCKERHUB_USERNAME }}
           dockerhub-image-registry-token: ${{ secrets.DOCKERHUB_TOKEN }}
-          build-dev-builder-ubuntu: ${{ inputs.release_dev_builder_ubuntu_image }}
+          build-dev-builder-ubuntu: ${{ inputs.release_dev_builder_ubuntu_image || github.event_name == 'push' }}
-          build-dev-builder-centos: ${{ inputs.release_dev_builder_centos_image }}
+          build-dev-builder-centos: ${{ inputs.release_dev_builder_centos_image || github.event_name == 'push' }}
-          build-dev-builder-android: ${{ inputs.release_dev_builder_android_image }}
+          build-dev-builder-android: ${{ inputs.release_dev_builder_android_image || github.event_name == 'push' }}
 
   release-dev-builder-images-ecr:
     name: Release dev builder images to AWS ECR
@@ -85,7 +93,7 @@ jobs:
 
       - name: Push dev-builder-ubuntu image
         shell: bash
-        if: ${{ inputs.release_dev_builder_ubuntu_image }}
+        if: ${{ inputs.release_dev_builder_ubuntu_image || github.event_name == 'push' }}
         env:
           IMAGE_VERSION: ${{ needs.release-dev-builder-images.outputs.version }}
           IMAGE_NAMESPACE: ${{ vars.IMAGE_NAMESPACE }}
@@ -106,7 +114,7 @@ jobs:
 
       - name: Push dev-builder-centos image
         shell: bash
-        if: ${{ inputs.release_dev_builder_centos_image }}
+        if: ${{ inputs.release_dev_builder_centos_image || github.event_name == 'push' }}
         env:
           IMAGE_VERSION: ${{ needs.release-dev-builder-images.outputs.version }}
           IMAGE_NAMESPACE: ${{ vars.IMAGE_NAMESPACE }}
@@ -127,7 +135,7 @@ jobs:
 
       - name: Push dev-builder-android image
         shell: bash
-        if: ${{ inputs.release_dev_builder_android_image }}
+        if: ${{ inputs.release_dev_builder_android_image || github.event_name == 'push' }}
         env:
           IMAGE_VERSION: ${{ needs.release-dev-builder-images.outputs.version }}
           IMAGE_NAMESPACE: ${{ vars.IMAGE_NAMESPACE }}
@@ -162,7 +170,7 @@ jobs:
 
       - name: Push dev-builder-ubuntu image
         shell: bash
-        if: ${{ inputs.release_dev_builder_ubuntu_image }}
+        if: ${{ inputs.release_dev_builder_ubuntu_image || github.event_name == 'push' }}
         env:
           IMAGE_VERSION: ${{ needs.release-dev-builder-images.outputs.version }}
           IMAGE_NAMESPACE: ${{ vars.IMAGE_NAMESPACE }}
@@ -176,7 +184,7 @@ jobs:
 
       - name: Push dev-builder-centos image
         shell: bash
-        if: ${{ inputs.release_dev_builder_centos_image }}
+        if: ${{ inputs.release_dev_builder_centos_image || github.event_name == 'push' }}
         env:
           IMAGE_VERSION: ${{ needs.release-dev-builder-images.outputs.version }}
           IMAGE_NAMESPACE: ${{ vars.IMAGE_NAMESPACE }}
@@ -190,7 +198,7 @@ jobs:
 
       - name: Push dev-builder-android image
         shell: bash
-        if: ${{ inputs.release_dev_builder_android_image }}
+        if: ${{ inputs.release_dev_builder_android_image || github.event_name == 'push' }}
         env:
           IMAGE_VERSION: ${{ needs.release-dev-builder-images.outputs.version }}
           IMAGE_NAMESPACE: ${{ vars.IMAGE_NAMESPACE }}
@@ -201,3 +209,24 @@ jobs:
             quay.io/skopeo/stable:latest \
             copy -a docker://docker.io/$IMAGE_NAMESPACE/dev-builder-android:$IMAGE_VERSION \
             docker://$ACR_IMAGE_REGISTRY/$IMAGE_NAMESPACE/dev-builder-android:$IMAGE_VERSION
+  
+  update-dev-builder-image-tag:
+    name: Update dev-builder image tag
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+    if: ${{ github.event_name == 'push' || inputs.update_dev_builder_image_tag }}
+    needs: [
+      release-dev-builder-images
+    ]
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Update dev-builder image tag
+        shell: bash
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          ./.github/scripts/update-dev-builder-version.sh ${{ needs.release-dev-builder-images.outputs.version }}

Cargo.toml

@@ -68,7 +68,7 @@ members = [
 resolver = "2"
 
 [workspace.package]
-version = "0.14.0"
+version = "0.14.4"
 edition = "2021"
 license = "Apache-2.0"
 
@@ -129,7 +129,7 @@ etcd-client = "0.14"
 fst = "0.4.7"
 futures = "0.3"
 futures-util = "0.3"
-greptime-proto = { git = "https://github.com/GreptimeTeam/greptime-proto.git", rev = "e82b0158cd38d4021edb4e4c0ae77f999051e62f" }
+greptime-proto = { git = "https://github.com/GreptimeTeam/greptime-proto.git", rev = "4d4136692fe7fbbd509ebc8c902f6afcc0ce61e4" }
 hex = "0.4"
 http = "1"
 humantime = "2.1"
@@ -161,8 +161,10 @@ parquet = { version = "54.2", default-features = false, features = ["arrow", "as
 paste = "1.0"
 pin-project = "1.0"
 prometheus = { version = "0.13.3", features = ["process"] }
-promql-parser = { version = "0.5.1", features = ["ser"] }
+promql-parser = { git = "https://github.com/GreptimeTeam/promql-parser.git", rev = "0410e8b459dda7cb222ce9596f8bf3971bd07bd2", features = [
-prost = "0.13"
+    "ser",
+] }
+prost = { version = "0.13", features = ["no-recursion-limit"] }
 raft-engine = { version = "0.4.1", default-features = false }
 rand = "0.9"
 ratelimit = "0.10"

src/client/src/database.rs

@@ -36,8 +36,8 @@ use common_grpc::flight::{FlightDecoder, FlightMessage};
 use common_query::Output;
 use common_recordbatch::error::ExternalSnafu;
 use common_recordbatch::RecordBatchStreamWrapper;
-use common_telemetry::error;
 use common_telemetry::tracing_context::W3cTrace;
+use common_telemetry::{error, warn};
 use futures::future;
 use futures_util::{Stream, StreamExt, TryStreamExt};
 use prost::Message;
@@ -192,6 +192,36 @@ impl Database {
         from_grpc_response(response)
     }
 
+    /// Retry if connection fails, max_retries is the max number of retries, so the total wait time
+    /// is `max_retries * GRPC_CONN_TIMEOUT`
+    pub async fn handle_with_retry(&self, request: Request, max_retries: u32) -> Result<u32> {
+        let mut client = make_database_client(&self.client)?.inner;
+        let mut retries = 0;
+        let request = self.to_rpc_request(request);
+        loop {
+            let raw_response = client.handle(request.clone()).await;
+            match (raw_response, retries < max_retries) {
+                (Ok(resp), _) => return from_grpc_response(resp.into_inner()),
+                (Err(err), true) => {
+                    // determine if the error is retryable
+                    if is_grpc_retryable(&err) {
+                        // retry
+                        retries += 1;
+                        warn!("Retrying {} times with error = {:?}", retries, err);
+                        continue;
+                    }
+                }
+                (Err(err), false) => {
+                    error!(
+                        "Failed to send request to grpc handle after {} retries, error = {:?}",
+                        retries, err
+                    );
+                    return Err(err.into());
+                }
+            }
+        }
+    }
+
     #[inline]
     fn to_rpc_request(&self, request: Request) -> GreptimeRequest {
         GreptimeRequest {
@@ -368,6 +398,11 @@ impl Database {
     }
 }
 
+/// by grpc standard, only `Unavailable` is retryable, see: https://github.com/grpc/grpc/blob/master/doc/statuscodes.md#status-codes-and-their-use-in-grpc
+pub fn is_grpc_retryable(err: &tonic::Status) -> bool {
+    matches!(err.code(), tonic::Code::Unavailable)
+}
+
 #[derive(Default, Debug, Clone)]
 struct FlightContext {
     auth_header: Option<AuthHeader>,

src/cmd/src/metasrv.rs

@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+use std::fmt;
 use std::time::Duration;
 
 use async_trait::async_trait;
@@ -131,7 +132,7 @@ impl SubCommand {
     }
 }
 
-#[derive(Debug, Default, Parser)]
+#[derive(Default, Parser)]
 pub struct StartCommand {
     /// The address to bind the gRPC server.
     #[clap(long, alias = "bind-addr")]
@@ -171,6 +172,27 @@ pub struct StartCommand {
     backend: Option<BackendImpl>,
 }
 
+impl fmt::Debug for StartCommand {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.debug_struct("StartCommand")
+            .field("rpc_bind_addr", &self.rpc_bind_addr)
+            .field("rpc_server_addr", &self.rpc_server_addr)
+            .field("store_addrs", &self.sanitize_store_addrs())
+            .field("config_file", &self.config_file)
+            .field("selector", &self.selector)
+            .field("use_memory_store", &self.use_memory_store)
+            .field("enable_region_failover", &self.enable_region_failover)
+            .field("http_addr", &self.http_addr)
+            .field("http_timeout", &self.http_timeout)
+            .field("env_prefix", &self.env_prefix)
+            .field("data_home", &self.data_home)
+            .field("store_key_prefix", &self.store_key_prefix)
+            .field("max_txn_ops", &self.max_txn_ops)
+            .field("backend", &self.backend)
+            .finish()
+    }
+}
+
 impl StartCommand {
     pub fn load_options(&self, global_options: &GlobalOptions) -> Result<MetasrvOptions> {
         let mut opts = MetasrvOptions::load_layered_options(
@@ -184,6 +206,15 @@ impl StartCommand {
         Ok(opts)
     }
 
+    fn sanitize_store_addrs(&self) -> Option<Vec<String>> {
+        self.store_addrs.as_ref().map(|addrs| {
+            addrs
+                .iter()
+                .map(|addr| common_meta::kv_backend::util::sanitize_connection_string(addr))
+                .collect()
+        })
+    }
+
     // The precedence order is: cli > config file > environment variables > default values.
     fn merge_with_cli_options(
         &self,

src/common/function/src/scalars/timestamp.rs

@@ -13,10 +13,8 @@
 // limitations under the License.
 
 use std::sync::Arc;
-mod greatest;
 mod to_unixtime;
 
-use greatest::GreatestFunction;
 use to_unixtime::ToUnixtimeFunction;
 
 use crate::function_registry::FunctionRegistry;
@@ -26,6 +24,5 @@ pub(crate) struct TimestampFunction;
 impl TimestampFunction {
     pub fn register(registry: &FunctionRegistry) {
         registry.register(Arc::new(ToUnixtimeFunction));
-        registry.register(Arc::new(GreatestFunction));
     }
 }

src/common/function/src/scalars/timestamp/greatest.rs

@@ -1,328 +0,0 @@
-// Copyright 2023 Greptime Team
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-use std::fmt::{self};
-
-use common_query::error::{
-    self, ArrowComputeSnafu, InvalidFuncArgsSnafu, Result, UnsupportedInputDataTypeSnafu,
-};
-use common_query::prelude::{Signature, Volatility};
-use datafusion::arrow::compute::kernels::cmp::gt;
-use datatypes::arrow::array::AsArray;
-use datatypes::arrow::compute::cast;
-use datatypes::arrow::compute::kernels::zip;
-use datatypes::arrow::datatypes::{
-    DataType as ArrowDataType, Date32Type, TimeUnit, TimestampMicrosecondType,
-    TimestampMillisecondType, TimestampNanosecondType, TimestampSecondType,
-};
-use datatypes::prelude::ConcreteDataType;
-use datatypes::types::TimestampType;
-use datatypes::vectors::{Helper, VectorRef};
-use snafu::{ensure, ResultExt};
-
-use crate::function::{Function, FunctionContext};
-
-#[derive(Clone, Debug, Default)]
-pub struct GreatestFunction;
-
-const NAME: &str = "greatest";
-
-macro_rules! gt_time_types {
-    ($ty: ident, $columns:expr) => {{
-        let column1 = $columns[0].to_arrow_array();
-        let column2 = $columns[1].to_arrow_array();
-
-        let column1 = column1.as_primitive::<$ty>();
-        let column2 = column2.as_primitive::<$ty>();
-        let boolean_array = gt(&column1, &column2).context(ArrowComputeSnafu)?;
-
-        let result = zip::zip(&boolean_array, &column1, &column2).context(ArrowComputeSnafu)?;
-        Helper::try_into_vector(&result).context(error::FromArrowArraySnafu)
-    }};
-}
-
-impl Function for GreatestFunction {
-    fn name(&self) -> &str {
-        NAME
-    }
-
-    fn return_type(&self, input_types: &[ConcreteDataType]) -> Result<ConcreteDataType> {
-        ensure!(
-            input_types.len() == 2,
-            InvalidFuncArgsSnafu {
-                err_msg: format!(
-                    "The length of the args is not correct, expect exactly two, have: {}",
-                    input_types.len()
-                )
-            }
-        );
-
-        match &input_types[0] {
-            ConcreteDataType::String(_) => Ok(ConcreteDataType::timestamp_millisecond_datatype()),
-            ConcreteDataType::Date(_) => Ok(ConcreteDataType::date_datatype()),
-            ConcreteDataType::Timestamp(ts_type) => Ok(ConcreteDataType::Timestamp(*ts_type)),
-            _ => UnsupportedInputDataTypeSnafu {
-                function: NAME,
-                datatypes: input_types,
-            }
-            .fail(),
-        }
-    }
-
-    fn signature(&self) -> Signature {
-        Signature::uniform(
-            2,
-            vec![
-                ConcreteDataType::string_datatype(),
-                ConcreteDataType::date_datatype(),
-                ConcreteDataType::timestamp_nanosecond_datatype(),
-                ConcreteDataType::timestamp_microsecond_datatype(),
-                ConcreteDataType::timestamp_millisecond_datatype(),
-                ConcreteDataType::timestamp_second_datatype(),
-            ],
-            Volatility::Immutable,
-        )
-    }
-
-    fn eval(&self, _func_ctx: &FunctionContext, columns: &[VectorRef]) -> Result<VectorRef> {
-        ensure!(
-            columns.len() == 2,
-            InvalidFuncArgsSnafu {
-                err_msg: format!(
-                    "The length of the args is not correct, expect exactly two, have: {}",
-                    columns.len()
-                ),
-            }
-        );
-        match columns[0].data_type() {
-            ConcreteDataType::String(_) => {
-                let column1 = cast(
-                    &columns[0].to_arrow_array(),
-                    &ArrowDataType::Timestamp(TimeUnit::Millisecond, None),
-                )
-                .context(ArrowComputeSnafu)?;
-                let column1 = column1.as_primitive::<TimestampMillisecondType>();
-                let column2 = cast(
-                    &columns[1].to_arrow_array(),
-                    &ArrowDataType::Timestamp(TimeUnit::Millisecond, None),
-                )
-                .context(ArrowComputeSnafu)?;
-                let column2 = column2.as_primitive::<TimestampMillisecondType>();
-                let boolean_array = gt(&column1, &column2).context(ArrowComputeSnafu)?;
-                let result =
-                    zip::zip(&boolean_array, &column1, &column2).context(ArrowComputeSnafu)?;
-                Ok(Helper::try_into_vector(&result).context(error::FromArrowArraySnafu)?)
-            }
-            ConcreteDataType::Date(_) => gt_time_types!(Date32Type, columns),
-            ConcreteDataType::Timestamp(ts_type) => match ts_type {
-                TimestampType::Second(_) => gt_time_types!(TimestampSecondType, columns),
-                TimestampType::Millisecond(_) => {
-                    gt_time_types!(TimestampMillisecondType, columns)
-                }
-                TimestampType::Microsecond(_) => {
-                    gt_time_types!(TimestampMicrosecondType, columns)
-                }
-                TimestampType::Nanosecond(_) => {
-                    gt_time_types!(TimestampNanosecondType, columns)
-                }
-            },
-            _ => UnsupportedInputDataTypeSnafu {
-                function: NAME,
-                datatypes: columns.iter().map(|c| c.data_type()).collect::<Vec<_>>(),
-            }
-            .fail(),
-        }
-    }
-}
-
-impl fmt::Display for GreatestFunction {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "GREATEST")
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use std::sync::Arc;
-
-    use common_time::timestamp::TimeUnit;
-    use common_time::{Date, Timestamp};
-    use datatypes::types::{
-        DateType, TimestampMicrosecondType, TimestampMillisecondType, TimestampNanosecondType,
-        TimestampSecondType,
-    };
-    use datatypes::value::Value;
-    use datatypes::vectors::{
-        DateVector, StringVector, TimestampMicrosecondVector, TimestampMillisecondVector,
-        TimestampNanosecondVector, TimestampSecondVector, Vector,
-    };
-    use paste::paste;
-
-    use super::*;
-    #[test]
-    fn test_greatest_takes_string_vector() {
-        let function = GreatestFunction;
-        assert_eq!(
-            function
-                .return_type(&[
-                    ConcreteDataType::string_datatype(),
-                    ConcreteDataType::string_datatype()
-                ])
-                .unwrap(),
-            ConcreteDataType::timestamp_millisecond_datatype()
-        );
-        let columns = vec![
-            Arc::new(StringVector::from(vec![
-                "1970-01-01".to_string(),
-                "2012-12-23".to_string(),
-            ])) as _,
-            Arc::new(StringVector::from(vec![
-                "2001-02-01".to_string(),
-                "1999-01-01".to_string(),
-            ])) as _,
-        ];
-
-        let result = function
-            .eval(&FunctionContext::default(), &columns)
-            .unwrap();
-        let result = result
-            .as_any()
-            .downcast_ref::<TimestampMillisecondVector>()
-            .unwrap();
-        assert_eq!(result.len(), 2);
-        assert_eq!(
-            result.get(0),
-            Value::Timestamp(Timestamp::from_str("2001-02-01 00:00:00", None).unwrap())
-        );
-        assert_eq!(
-            result.get(1),
-            Value::Timestamp(Timestamp::from_str("2012-12-23 00:00:00", None).unwrap())
-        );
-    }
-
-    #[test]
-    fn test_greatest_takes_date_vector() {
-        let function = GreatestFunction;
-        assert_eq!(
-            function
-                .return_type(&[
-                    ConcreteDataType::date_datatype(),
-                    ConcreteDataType::date_datatype()
-                ])
-                .unwrap(),
-            ConcreteDataType::Date(DateType)
-        );
-
-        let columns = vec![
-            Arc::new(DateVector::from_slice(vec![-1, 2])) as _,
-            Arc::new(DateVector::from_slice(vec![0, 1])) as _,
-        ];
-
-        let result = function
-            .eval(&FunctionContext::default(), &columns)
-            .unwrap();
-        let result = result.as_any().downcast_ref::<DateVector>().unwrap();
-        assert_eq!(result.len(), 2);
-        assert_eq!(
-            result.get(0),
-            Value::Date(Date::from_str_utc("1970-01-01").unwrap())
-        );
-        assert_eq!(
-            result.get(1),
-            Value::Date(Date::from_str_utc("1970-01-03").unwrap())
-        );
-    }
-
-    #[test]
-    fn test_greatest_takes_datetime_vector() {
-        let function = GreatestFunction;
-        assert_eq!(
-            function
-                .return_type(&[
-                    ConcreteDataType::timestamp_millisecond_datatype(),
-                    ConcreteDataType::timestamp_millisecond_datatype()
-                ])
-                .unwrap(),
-            ConcreteDataType::timestamp_millisecond_datatype()
-        );
-
-        let columns = vec![
-            Arc::new(TimestampMillisecondVector::from_slice(vec![-1, 2])) as _,
-            Arc::new(TimestampMillisecondVector::from_slice(vec![0, 1])) as _,
-        ];
-
-        let result = function
-            .eval(&FunctionContext::default(), &columns)
-            .unwrap();
-        let result = result
-            .as_any()
-            .downcast_ref::<TimestampMillisecondVector>()
-            .unwrap();
-        assert_eq!(result.len(), 2);
-        assert_eq!(
-            result.get(0),
-            Value::Timestamp(Timestamp::from_str("1970-01-01 00:00:00", None).unwrap())
-        );
-        assert_eq!(
-            result.get(1),
-            Value::Timestamp(Timestamp::from_str("1970-01-01 00:00:00.002", None).unwrap())
-        );
-    }
-
-    macro_rules! test_timestamp {
-        ($type: expr,$unit: ident) => {
-            paste! {
-                #[test]
-                fn [<test_greatest_takes_ $unit:lower _vector>]() {
-                    let function = GreatestFunction;
-                    assert_eq!(
-                        function.return_type(&[$type, $type]).unwrap(),
-                        ConcreteDataType::Timestamp(TimestampType::$unit([<Timestamp $unit Type>]))
-                    );
-
-                    let columns = vec![
-                        Arc::new([<Timestamp $unit Vector>]::from_slice(vec![-1, 2])) as _,
-                        Arc::new([<Timestamp $unit Vector>]::from_slice(vec![0, 1])) as _,
-                    ];
-
-                    let result = function.eval(&FunctionContext::default(), &columns).unwrap();
-                    let result = result.as_any().downcast_ref::<[<Timestamp $unit Vector>]>().unwrap();
-                    assert_eq!(result.len(), 2);
-                    assert_eq!(
-                        result.get(0),
-                        Value::Timestamp(Timestamp::new(0, TimeUnit::$unit))
-                    );
-                    assert_eq!(
-                        result.get(1),
-                        Value::Timestamp(Timestamp::new(2, TimeUnit::$unit))
-                    );
-                }
-            }
-        }
-    }
-
-    test_timestamp!(
-        ConcreteDataType::timestamp_nanosecond_datatype(),
-        Nanosecond
-    );
-    test_timestamp!(
-        ConcreteDataType::timestamp_microsecond_datatype(),
-        Microsecond
-    );
-    test_timestamp!(
-        ConcreteDataType::timestamp_millisecond_datatype(),
-        Millisecond
-    );
-    test_timestamp!(ConcreteDataType::timestamp_second_datatype(), Second);
-}

src/common/grpc/src/lib.rs

@@ -18,4 +18,5 @@ pub mod flight;
 pub mod precision;
 pub mod select;
 
+pub use arrow_flight::FlightData;
 pub use error::Error;

src/common/meta/src/cache/flow/table_flownode.rs

@@ -24,21 +24,39 @@ use crate::cache::{CacheContainer, Initializer};
 use crate::error::Result;
 use crate::instruction::{CacheIdent, CreateFlow, DropFlow};
 use crate::key::flow::{TableFlowManager, TableFlowManagerRef};
+use crate::key::{FlowId, FlowPartitionId};
 use crate::kv_backend::KvBackendRef;
 use crate::peer::Peer;
-use crate::FlownodeId;
 
-type FlownodeSet = Arc<HashMap<FlownodeId, Peer>>;
+/// Flow id&flow partition key
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+pub struct FlowIdent {
+    pub flow_id: FlowId,
+    pub partition_id: FlowPartitionId,
+}
+
+impl FlowIdent {
+    pub fn new(flow_id: FlowId, partition_id: FlowPartitionId) -> Self {
+        Self {
+            flow_id,
+            partition_id,
+        }
+    }
+}
+
+/// cache for TableFlowManager, the table_id part is in the outer cache
+/// include flownode_id, flow_id, partition_id mapping to Peer
+type FlownodeFlowSet = Arc<HashMap<FlowIdent, Peer>>;
 
 pub type TableFlownodeSetCacheRef = Arc<TableFlownodeSetCache>;
 
 /// [TableFlownodeSetCache] caches the [TableId] to [FlownodeSet] mapping.
-pub type TableFlownodeSetCache = CacheContainer<TableId, FlownodeSet, CacheIdent>;
+pub type TableFlownodeSetCache = CacheContainer<TableId, FlownodeFlowSet, CacheIdent>;
 
 /// Constructs a [TableFlownodeSetCache].
 pub fn new_table_flownode_set_cache(
     name: String,
-    cache: Cache<TableId, FlownodeSet>,
+    cache: Cache<TableId, FlownodeFlowSet>,
     kv_backend: KvBackendRef,
 ) -> TableFlownodeSetCache {
     let table_flow_manager = Arc::new(TableFlowManager::new(kv_backend));
@@ -47,7 +65,7 @@ pub fn new_table_flownode_set_cache(
     CacheContainer::new(name, cache, Box::new(invalidator), init, filter)
 }
 
-fn init_factory(table_flow_manager: TableFlowManagerRef) -> Initializer<TableId, FlownodeSet> {
+fn init_factory(table_flow_manager: TableFlowManagerRef) -> Initializer<TableId, FlownodeFlowSet> {
     Arc::new(move |&table_id| {
         let table_flow_manager = table_flow_manager.clone();
         Box::pin(async move {
@@ -57,7 +75,12 @@ fn init_factory(table_flow_manager: TableFlowManagerRef) -> Initializer<TableId,
                 .map(|flows| {
                     flows
                         .into_iter()
-                        .map(|(key, value)| (key.flownode_id(), value.peer))
+                        .map(|(key, value)| {
+                            (
+                                FlowIdent::new(key.flow_id(), key.partition_id()),
+                                value.peer,
+                            )
+                        })
                         .collect::<HashMap<_, _>>()
                 })
                 // We must cache the `HashSet` even if it's empty,
@@ -71,26 +94,33 @@ fn init_factory(table_flow_manager: TableFlowManagerRef) -> Initializer<TableId,
 }
 
 async fn handle_create_flow(
-    cache: &Cache<TableId, FlownodeSet>,
+    cache: &Cache<TableId, FlownodeFlowSet>,
     CreateFlow {
+        flow_id,
         source_table_ids,
-        flownodes: flownode_peers,
+        partition_to_peer_mapping: flow_part2nodes,
     }: &CreateFlow,
 ) {
     for table_id in source_table_ids {
         let entry = cache.entry(*table_id);
         entry
             .and_compute_with(
-                async |entry: Option<moka::Entry<u32, Arc<HashMap<u64, _>>>>| match entry {
+                async |entry: Option<moka::Entry<u32, FlownodeFlowSet>>| match entry {
                     Some(entry) => {
                         let mut map = entry.into_value().as_ref().clone();
-                        map.extend(flownode_peers.iter().map(|peer| (peer.id, peer.clone())));
+                        map.extend(
+                            flow_part2nodes.iter().map(|(part, peer)| {
+                                (FlowIdent::new(*flow_id, *part), peer.clone())
+                            }),
+                        );
 
                         Op::Put(Arc::new(map))
                     }
-                    None => Op::Put(Arc::new(HashMap::from_iter(
+                    None => {
-                        flownode_peers.iter().map(|peer| (peer.id, peer.clone())),
+                        Op::Put(Arc::new(HashMap::from_iter(flow_part2nodes.iter().map(
-                    ))),
+                            |(part, peer)| (FlowIdent::new(*flow_id, *part), peer.clone()),
+                        ))))
+                    }
                 },
             )
             .await;
@@ -98,21 +128,23 @@ async fn handle_create_flow(
 }
 
 async fn handle_drop_flow(
-    cache: &Cache<TableId, FlownodeSet>,
+    cache: &Cache<TableId, FlownodeFlowSet>,
     DropFlow {
+        flow_id,
         source_table_ids,
-        flownode_ids,
+        flow_part2node_id,
     }: &DropFlow,
 ) {
     for table_id in source_table_ids {
         let entry = cache.entry(*table_id);
         entry
             .and_compute_with(
-                async |entry: Option<moka::Entry<u32, Arc<HashMap<u64, _>>>>| match entry {
+                async |entry: Option<moka::Entry<u32, FlownodeFlowSet>>| match entry {
                     Some(entry) => {
                         let mut set = entry.into_value().as_ref().clone();
-                        for flownode_id in flownode_ids {
+                        for (part, _node) in flow_part2node_id {
-                            set.remove(flownode_id);
+                            let key = FlowIdent::new(*flow_id, *part);
+                            set.remove(&key);
                         }
 
                         Op::Put(Arc::new(set))
@@ -128,7 +160,7 @@ async fn handle_drop_flow(
 }
 
 fn invalidator<'a>(
-    cache: &'a Cache<TableId, FlownodeSet>,
+    cache: &'a Cache<TableId, FlownodeFlowSet>,
     ident: &'a CacheIdent,
 ) -> BoxFuture<'a, Result<()>> {
     Box::pin(async move {
@@ -154,7 +186,7 @@ mod tests {
     use moka::future::CacheBuilder;
     use table::table_name::TableName;
 
-    use crate::cache::flow::table_flownode::new_table_flownode_set_cache;
+    use crate::cache::flow::table_flownode::{new_table_flownode_set_cache, FlowIdent};
     use crate::instruction::{CacheIdent, CreateFlow, DropFlow};
     use crate::key::flow::flow_info::FlowInfoValue;
     use crate::key::flow::flow_route::FlowRouteValue;
@@ -214,12 +246,16 @@ mod tests {
         let set = cache.get(1024).await.unwrap().unwrap();
         assert_eq!(
             set.as_ref().clone(),
-            HashMap::from_iter((1..=3).map(|i| { (i, Peer::empty(i),) }))
+            HashMap::from_iter(
+                (1..=3).map(|i| { (FlowIdent::new(1024, (i - 1) as u32), Peer::empty(i),) })
+            )
         );
         let set = cache.get(1025).await.unwrap().unwrap();
         assert_eq!(
             set.as_ref().clone(),
-            HashMap::from_iter((1..=3).map(|i| { (i, Peer::empty(i),) }))
+            HashMap::from_iter(
+                (1..=3).map(|i| { (FlowIdent::new(1024, (i - 1) as u32), Peer::empty(i),) })
+            )
         );
         let result = cache.get(1026).await.unwrap().unwrap();
         assert_eq!(result.len(), 0);
@@ -231,8 +267,9 @@ mod tests {
         let cache = CacheBuilder::new(128).build();
         let cache = new_table_flownode_set_cache("test".to_string(), cache, mem_kv);
         let ident = vec![CacheIdent::CreateFlow(CreateFlow {
+            flow_id: 2001,
             source_table_ids: vec![1024, 1025],
-            flownodes: (1..=5).map(Peer::empty).collect(),
+            partition_to_peer_mapping: (1..=5).map(|i| (i as u32, Peer::empty(i + 1))).collect(),
         })];
         cache.invalidate(&ident).await.unwrap();
         let set = cache.get(1024).await.unwrap().unwrap();
@@ -241,6 +278,54 @@ mod tests {
         assert_eq!(set.len(), 5);
     }
 
+    #[tokio::test]
+    async fn test_replace_flow() {
+        let mem_kv = Arc::new(MemoryKvBackend::default());
+        let cache = CacheBuilder::new(128).build();
+        let cache = new_table_flownode_set_cache("test".to_string(), cache, mem_kv);
+        let ident = vec![CacheIdent::CreateFlow(CreateFlow {
+            flow_id: 2001,
+            source_table_ids: vec![1024, 1025],
+            partition_to_peer_mapping: (1..=5).map(|i| (i as u32, Peer::empty(i + 1))).collect(),
+        })];
+        cache.invalidate(&ident).await.unwrap();
+        let set = cache.get(1024).await.unwrap().unwrap();
+        assert_eq!(set.len(), 5);
+        let set = cache.get(1025).await.unwrap().unwrap();
+        assert_eq!(set.len(), 5);
+
+        let drop_then_create_flow = vec![
+            CacheIdent::DropFlow(DropFlow {
+                flow_id: 2001,
+                source_table_ids: vec![1024, 1025],
+                flow_part2node_id: (1..=5).map(|i| (i as u32, i + 1)).collect(),
+            }),
+            CacheIdent::CreateFlow(CreateFlow {
+                flow_id: 2001,
+                source_table_ids: vec![1026, 1027],
+                partition_to_peer_mapping: (11..=15)
+                    .map(|i| (i as u32, Peer::empty(i + 1)))
+                    .collect(),
+            }),
+            CacheIdent::FlowId(2001),
+        ];
+        cache.invalidate(&drop_then_create_flow).await.unwrap();
+
+        let set = cache.get(1024).await.unwrap().unwrap();
+        assert!(set.is_empty());
+
+        let expected = HashMap::from_iter(
+            (11..=15).map(|i| (FlowIdent::new(2001, i as u32), Peer::empty(i + 1))),
+        );
+        let set = cache.get(1026).await.unwrap().unwrap();
+
+        assert_eq!(set.as_ref().clone(), expected);
+
+        let set = cache.get(1027).await.unwrap().unwrap();
+
+        assert_eq!(set.as_ref().clone(), expected);
+    }
+
     #[tokio::test]
     async fn test_drop_flow() {
         let mem_kv = Arc::new(MemoryKvBackend::default());
@@ -248,34 +333,57 @@ mod tests {
         let cache = new_table_flownode_set_cache("test".to_string(), cache, mem_kv);
         let ident = vec![
             CacheIdent::CreateFlow(CreateFlow {
+                flow_id: 2001,
                 source_table_ids: vec![1024, 1025],
-                flownodes: (1..=5).map(Peer::empty).collect(),
+                partition_to_peer_mapping: (1..=5)
+                    .map(|i| (i as u32, Peer::empty(i + 1)))
+                    .collect(),
             }),
             CacheIdent::CreateFlow(CreateFlow {
+                flow_id: 2002,
                 source_table_ids: vec![1024, 1025],
-                flownodes: (11..=12).map(Peer::empty).collect(),
+                partition_to_peer_mapping: (11..=12)
+                    .map(|i| (i as u32, Peer::empty(i + 1)))
+                    .collect(),
+            }),
+            // same flownode that hold multiple flows
+            CacheIdent::CreateFlow(CreateFlow {
+                flow_id: 2003,
+                source_table_ids: vec![1024, 1025],
+                partition_to_peer_mapping: (1..=5)
+                    .map(|i| (i as u32, Peer::empty(i + 1)))
+                    .collect(),
             }),
         ];
         cache.invalidate(&ident).await.unwrap();
         let set = cache.get(1024).await.unwrap().unwrap();
-        assert_eq!(set.len(), 7);
+        assert_eq!(set.len(), 12);
         let set = cache.get(1025).await.unwrap().unwrap();
-        assert_eq!(set.len(), 7);
+        assert_eq!(set.len(), 12);
 
         let ident = vec![CacheIdent::DropFlow(DropFlow {
+            flow_id: 2001,
             source_table_ids: vec![1024, 1025],
-            flownode_ids: vec![1, 2, 3, 4, 5],
+            flow_part2node_id: (1..=5).map(|i| (i as u32, i + 1)).collect(),
         })];
         cache.invalidate(&ident).await.unwrap();
         let set = cache.get(1024).await.unwrap().unwrap();
         assert_eq!(
             set.as_ref().clone(),
-            HashMap::from_iter((11..=12).map(|i| { (i, Peer::empty(i),) }))
+            HashMap::from_iter(
+                (11..=12)
+                    .map(|i| (FlowIdent::new(2002, i as u32), Peer::empty(i + 1)))
+                    .chain((1..=5).map(|i| (FlowIdent::new(2003, i as u32), Peer::empty(i + 1))))
+            )
         );
         let set = cache.get(1025).await.unwrap().unwrap();
         assert_eq!(
             set.as_ref().clone(),
-            HashMap::from_iter((11..=12).map(|i| { (i, Peer::empty(i),) }))
+            HashMap::from_iter(
+                (11..=12)
+                    .map(|i| (FlowIdent::new(2002, i as u32), Peer::empty(i + 1)))
+                    .chain((1..=5).map(|i| (FlowIdent::new(2003, i as u32), Peer::empty(i + 1))))
+            )
         );
     }
 }

src/common/meta/src/cache_invalidator.rs

@@ -16,9 +16,12 @@ use std::sync::Arc;
 
 use crate::error::Result;
 use crate::flow_name::FlowName;
-use crate::instruction::CacheIdent;
+use crate::instruction::{CacheIdent, DropFlow};
 use crate::key::flow::flow_info::FlowInfoKey;
 use crate::key::flow::flow_name::FlowNameKey;
+use crate::key::flow::flow_route::FlowRouteKey;
+use crate::key::flow::flownode_flow::FlownodeFlowKey;
+use crate::key::flow::table_flow::TableFlowKey;
 use crate::key::schema_name::SchemaNameKey;
 use crate::key::table_info::TableInfoKey;
 use crate::key::table_name::TableNameKey;
@@ -89,9 +92,40 @@ where
                     let key: SchemaNameKey = schema_name.into();
                     self.invalidate_key(&key.to_bytes()).await;
                 }
-                CacheIdent::CreateFlow(_) | CacheIdent::DropFlow(_) => {
+                CacheIdent::CreateFlow(_) => {
                     // Do nothing
                 }
+                CacheIdent::DropFlow(DropFlow {
+                    flow_id,
+                    source_table_ids,
+                    flow_part2node_id,
+                }) => {
+                    // invalidate flow route/flownode flow/table flow
+                    let mut keys = Vec::with_capacity(
+                        source_table_ids.len() * flow_part2node_id.len()
+                            + flow_part2node_id.len() * 2,
+                    );
+                    for table_id in source_table_ids {
+                        for (partition_id, node_id) in flow_part2node_id {
+                            let key =
+                                TableFlowKey::new(*table_id, *node_id, *flow_id, *partition_id)
+                                    .to_bytes();
+                            keys.push(key);
+                        }
+                    }
+
+                    for (partition_id, node_id) in flow_part2node_id {
+                        let key =
+                            FlownodeFlowKey::new(*node_id, *flow_id, *partition_id).to_bytes();
+                        keys.push(key);
+                        let key = FlowRouteKey::new(*flow_id, *partition_id).to_bytes();
+                        keys.push(key);
+                    }
+
+                    for key in keys {
+                        self.invalidate_key(&key).await;
+                    }
+                }
                 CacheIdent::FlowName(FlowName {
                     catalog_name,
                     flow_name,

src/common/meta/src/ddl/create_flow.rs

@@ -39,7 +39,7 @@ use crate::cache_invalidator::Context;
 use crate::ddl::utils::{add_peer_context_if_needed, handle_retry_error};
 use crate::ddl::DdlContext;
 use crate::error::{self, Result, UnexpectedSnafu};
-use crate::instruction::{CacheIdent, CreateFlow};
+use crate::instruction::{CacheIdent, CreateFlow, DropFlow};
 use crate::key::flow::flow_info::FlowInfoValue;
 use crate::key::flow::flow_route::FlowRouteValue;
 use crate::key::table_name::TableNameKey;
@@ -70,6 +70,7 @@ impl CreateFlowProcedure {
                 query_context,
                 state: CreateFlowState::Prepare,
                 prev_flow_info_value: None,
+                did_replace: false,
                 flow_type: None,
             },
         }
@@ -224,6 +225,7 @@ impl CreateFlowProcedure {
                 .update_flow_metadata(flow_id, prev_flow_value, &flow_info, flow_routes)
                 .await?;
             info!("Replaced flow metadata for flow {flow_id}");
+            self.data.did_replace = true;
         } else {
             self.context
                 .flow_metadata_manager
@@ -240,22 +242,43 @@ impl CreateFlowProcedure {
         debug_assert!(self.data.state == CreateFlowState::InvalidateFlowCache);
         // Safety: The flow id must be allocated.
         let flow_id = self.data.flow_id.unwrap();
+        let did_replace = self.data.did_replace;
         let ctx = Context {
             subject: Some("Invalidate flow cache by creating flow".to_string()),
         };
 
+        let mut caches = vec![];
+
+        // if did replaced, invalidate the flow cache with drop the old flow
+        if did_replace {
+            let old_flow_info = self.data.prev_flow_info_value.as_ref().unwrap();
+
+            // only drop flow is needed, since flow name haven't changed, and flow id already invalidated below
+            caches.extend([CacheIdent::DropFlow(DropFlow {
+                flow_id,
+                source_table_ids: old_flow_info.source_table_ids.clone(),
+                flow_part2node_id: old_flow_info.flownode_ids().clone().into_iter().collect(),
+            })]);
+        }
+
+        let (_flow_info, flow_routes) = (&self.data).into();
+        let flow_part2peers = flow_routes
+            .into_iter()
+            .map(|(part_id, route)| (part_id, route.peer))
+            .collect();
+
+        caches.extend([
+            CacheIdent::CreateFlow(CreateFlow {
+                flow_id,
+                source_table_ids: self.data.source_table_ids.clone(),
+                partition_to_peer_mapping: flow_part2peers,
+            }),
+            CacheIdent::FlowId(flow_id),
+        ]);
+
         self.context
             .cache_invalidator
-            .invalidate(
+            .invalidate(&ctx, &caches)
-                &ctx,
-                &[
-                    CacheIdent::CreateFlow(CreateFlow {
-                        source_table_ids: self.data.source_table_ids.clone(),
-                        flownodes: self.data.peers.clone(),
-                    }),
-                    CacheIdent::FlowId(flow_id),
-                ],
-            )
             .await?;
 
         Ok(Status::done_with_output(flow_id))
@@ -377,6 +400,10 @@ pub struct CreateFlowData {
     /// For verify if prev value is consistent when need to update flow metadata.
     /// only set when `or_replace` is true.
     pub(crate) prev_flow_info_value: Option<DeserializedValueWithBytes<FlowInfoValue>>,
+    /// Only set to true when replace actually happened.
+    /// This is used to determine whether to invalidate the cache.
+    #[serde(default)]
+    pub(crate) did_replace: bool,
     pub(crate) flow_type: Option<FlowType>,
 }
 

src/common/meta/src/ddl/drop_flow.rs

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 mod metadata;
+
 use api::v1::flow::{flow_request, DropRequest, FlowRequest};
 use async_trait::async_trait;
 use common_catalog::format_full_flow_name;
@@ -153,6 +154,12 @@ impl DropFlowProcedure {
         };
         let flow_info_value = self.data.flow_info_value.as_ref().unwrap();
 
+        let flow_part2nodes = flow_info_value
+            .flownode_ids()
+            .clone()
+            .into_iter()
+            .collect::<Vec<_>>();
+
         self.context
             .cache_invalidator
             .invalidate(
@@ -164,8 +171,9 @@ impl DropFlowProcedure {
                         flow_name: flow_info_value.flow_name.to_string(),
                     }),
                     CacheIdent::DropFlow(DropFlow {
+                        flow_id,
                         source_table_ids: flow_info_value.source_table_ids.clone(),
-                        flownode_ids: flow_info_value.flownode_ids.values().cloned().collect(),
+                        flow_part2node_id: flow_part2nodes,
                     }),
                 ],
             )

src/common/meta/src/error.rs

@@ -514,11 +514,25 @@ pub enum Error {
     },
 
     #[snafu(display(
-        "Failed to build a Kafka partition client, topic: {}, partition: {}",
+        "Failed to get a Kafka partition client, topic: {}, partition: {}",
         topic,
         partition
     ))]
-    BuildKafkaPartitionClient {
+    KafkaPartitionClient {
+        topic: String,
+        partition: i32,
+        #[snafu(implicit)]
+        location: Location,
+        #[snafu(source)]
+        error: rskafka::client::error::Error,
+    },
+
+    #[snafu(display(
+        "Failed to get offset from Kafka, topic: {}, partition: {}",
+        topic,
+        partition
+    ))]
+    KafkaGetOffset {
         topic: String,
         partition: i32,
         #[snafu(implicit)]
@@ -843,7 +857,7 @@ impl ErrorExt for Error {
             | EncodeWalOptions { .. }
             | BuildKafkaClient { .. }
             | BuildKafkaCtrlClient { .. }
-            | BuildKafkaPartitionClient { .. }
+            | KafkaPartitionClient { .. }
             | ResolveKafkaEndpoint { .. }
             | ProduceRecord { .. }
             | CreateKafkaWalTopic { .. }
@@ -852,7 +866,8 @@ impl ErrorExt for Error {
             | ProcedureOutput { .. }
             | FromUtf8 { .. }
             | MetadataCorruption { .. }
-            | ParseWalOptions { .. } => StatusCode::Unexpected,
+            | ParseWalOptions { .. }
+            | KafkaGetOffset { .. } => StatusCode::Unexpected,
 
             SendMessage { .. } | GetKvCache { .. } | CacheNotGet { .. } => StatusCode::Internal,
 

src/common/meta/src/instruction.rs

@@ -24,7 +24,7 @@ use table::table_name::TableName;
 
 use crate::flow_name::FlowName;
 use crate::key::schema_name::SchemaName;
-use crate::key::FlowId;
+use crate::key::{FlowId, FlowPartitionId};
 use crate::peer::Peer;
 use crate::{DatanodeId, FlownodeId};
 
@@ -184,14 +184,19 @@ pub enum CacheIdent {
 
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
 pub struct CreateFlow {
+    /// The unique identifier for the flow.
+    pub flow_id: FlowId,
     pub source_table_ids: Vec<TableId>,
-    pub flownodes: Vec<Peer>,
+    /// Mapping of flow partition to peer information
+    pub partition_to_peer_mapping: Vec<(FlowPartitionId, Peer)>,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
 pub struct DropFlow {
+    pub flow_id: FlowId,
     pub source_table_ids: Vec<TableId>,
-    pub flownode_ids: Vec<FlownodeId>,
+    /// Mapping of flow partition to flownode id
+    pub flow_part2node_id: Vec<(FlowPartitionId, FlownodeId)>,
 }
 
 /// Flushes a batch of regions.

src/common/meta/src/key/datanode_table.rs

@@ -256,6 +256,11 @@ impl DatanodeTableManager {
             })?
             .and_then(|r| DatanodeTableValue::try_from_raw_value(&r.value))?
             .region_info;
+
+        // If the region options are the same, we don't need to update it.
+        if region_info.region_options == new_region_options {
+            return Ok(Txn::new());
+        }
         // substitute region options only.
         region_info.region_options = new_region_options;
 

src/common/meta/src/key/flow.rs

@@ -45,7 +45,7 @@ use crate::kv_backend::KvBackendRef;
 use crate::rpc::store::BatchDeleteRequest;
 
 /// The key of `__flow/` scope.
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Clone, PartialEq)]
 pub struct FlowScoped<T> {
     inner: T,
 }
@@ -246,27 +246,32 @@ impl FlowMetadataManager {
         new_flow_info: &FlowInfoValue,
         flow_routes: Vec<(FlowPartitionId, FlowRouteValue)>,
     ) -> Result<()> {
-        let (create_flow_flow_name_txn, on_create_flow_flow_name_failure) =
+        let (update_flow_flow_name_txn, on_create_flow_flow_name_failure) =
             self.flow_name_manager.build_update_txn(
                 &new_flow_info.catalog_name,
                 &new_flow_info.flow_name,
                 flow_id,
             )?;
 
-        let (create_flow_txn, on_create_flow_failure) =
+        let (update_flow_txn, on_create_flow_failure) =
             self.flow_info_manager
                 .build_update_txn(flow_id, current_flow_info, new_flow_info)?;
 
-        let create_flow_routes_txn = self
+        let update_flow_routes_txn = self.flow_route_manager.build_update_txn(
-            .flow_route_manager
-            .build_create_txn(flow_id, flow_routes.clone())?;
-
-        let create_flownode_flow_txn = self
-            .flownode_flow_manager
-            .build_create_txn(flow_id, new_flow_info.flownode_ids().clone());
-
-        let create_table_flow_txn = self.table_flow_manager.build_create_txn(
             flow_id,
+            current_flow_info,
+            flow_routes.clone(),
+        )?;
+
+        let update_flownode_flow_txn = self.flownode_flow_manager.build_update_txn(
+            flow_id,
+            current_flow_info,
+            new_flow_info.flownode_ids().clone(),
+        );
+
+        let update_table_flow_txn = self.table_flow_manager.build_update_txn(
+            flow_id,
+            current_flow_info,
             flow_routes
                 .into_iter()
                 .map(|(partition_id, route)| (partition_id, TableFlowValue { peer: route.peer }))
@@ -275,11 +280,11 @@ impl FlowMetadataManager {
         )?;
 
         let txn = Txn::merge_all(vec![
-            create_flow_flow_name_txn,
+            update_flow_flow_name_txn,
-            create_flow_txn,
+            update_flow_txn,
-            create_flow_routes_txn,
+            update_flow_routes_txn,
-            create_flownode_flow_txn,
+            update_flownode_flow_txn,
-            create_table_flow_txn,
+            update_table_flow_txn,
         ]);
         info!(
             "Creating flow {}.{}({}), with {} txn operations",
@@ -783,6 +788,141 @@ mod tests {
         }
     }
 
+    #[tokio::test]
+    async fn test_update_flow_metadata_diff_flownode() {
+        let mem_kv = Arc::new(MemoryKvBackend::default());
+        let flow_metadata_manager = FlowMetadataManager::new(mem_kv.clone());
+        let flow_id = 10;
+        let flow_value = test_flow_info_value(
+            "flow",
+            [(0u32, 1u64), (1u32, 2u64)].into(),
+            vec![1024, 1025, 1026],
+        );
+        let flow_routes = vec![
+            (
+                0u32,
+                FlowRouteValue {
+                    peer: Peer::empty(1),
+                },
+            ),
+            (
+                1,
+                FlowRouteValue {
+                    peer: Peer::empty(2),
+                },
+            ),
+        ];
+        flow_metadata_manager
+            .create_flow_metadata(flow_id, flow_value.clone(), flow_routes.clone())
+            .await
+            .unwrap();
+
+        let new_flow_value = {
+            let mut tmp = flow_value.clone();
+            tmp.raw_sql = "new".to_string();
+            // move to different flownodes
+            tmp.flownode_ids = [(0, 3u64), (1, 4u64)].into();
+            tmp
+        };
+        let new_flow_routes = vec![
+            (
+                0u32,
+                FlowRouteValue {
+                    peer: Peer::empty(3),
+                },
+            ),
+            (
+                1,
+                FlowRouteValue {
+                    peer: Peer::empty(4),
+                },
+            ),
+        ];
+
+        // Update flow instead
+        flow_metadata_manager
+            .update_flow_metadata(
+                flow_id,
+                &DeserializedValueWithBytes::from_inner(flow_value.clone()),
+                &new_flow_value,
+                new_flow_routes.clone(),
+            )
+            .await
+            .unwrap();
+
+        let got = flow_metadata_manager
+            .flow_info_manager()
+            .get(flow_id)
+            .await
+            .unwrap()
+            .unwrap();
+        let routes = flow_metadata_manager
+            .flow_route_manager()
+            .routes(flow_id)
+            .await
+            .unwrap();
+        assert_eq!(
+            routes,
+            vec![
+                (
+                    FlowRouteKey::new(flow_id, 0),
+                    FlowRouteValue {
+                        peer: Peer::empty(3),
+                    },
+                ),
+                (
+                    FlowRouteKey::new(flow_id, 1),
+                    FlowRouteValue {
+                        peer: Peer::empty(4),
+                    },
+                ),
+            ]
+        );
+        assert_eq!(got, new_flow_value);
+
+        let flows = flow_metadata_manager
+            .flownode_flow_manager()
+            .flows(1)
+            .try_collect::<Vec<_>>()
+            .await
+            .unwrap();
+        // should moved to different flownode
+        assert_eq!(flows, vec![]);
+
+        let flows = flow_metadata_manager
+            .flownode_flow_manager()
+            .flows(3)
+            .try_collect::<Vec<_>>()
+            .await
+            .unwrap();
+        assert_eq!(flows, vec![(flow_id, 0)]);
+
+        for table_id in [1024, 1025, 1026] {
+            let nodes = flow_metadata_manager
+                .table_flow_manager()
+                .flows(table_id)
+                .await
+                .unwrap();
+            assert_eq!(
+                nodes,
+                vec![
+                    (
+                        TableFlowKey::new(table_id, 3, flow_id, 0),
+                        TableFlowValue {
+                            peer: Peer::empty(3)
+                        }
+                    ),
+                    (
+                        TableFlowKey::new(table_id, 4, flow_id, 1),
+                        TableFlowValue {
+                            peer: Peer::empty(4)
+                        }
+                    )
+                ]
+            );
+        }
+    }
+
     #[tokio::test]
     async fn test_update_flow_metadata_flow_replace_diff_id_err() {
         let mem_kv = Arc::new(MemoryKvBackend::default());

src/common/meta/src/key/flow/flow_info.rs

@@ -153,6 +153,15 @@ impl FlowInfoValue {
         &self.flownode_ids
     }
 
+    /// Insert a new flownode id for a partition.
+    pub fn insert_flownode_id(
+        &mut self,
+        partition: FlowPartitionId,
+        node: FlownodeId,
+    ) -> Option<FlownodeId> {
+        self.flownode_ids.insert(partition, node)
+    }
+
     /// Returns the `source_table`.
     pub fn source_table_ids(&self) -> &[TableId] {
         &self.source_table_ids
@@ -272,10 +281,11 @@ impl FlowInfoManager {
         let raw_value = new_flow_value.try_as_raw_value()?;
         let prev_value = current_flow_value.get_raw_bytes();
         let txn = Txn::new()
-            .when(vec![
+            .when(vec![Compare::new(
-                Compare::new(key.clone(), CompareOp::NotEqual, None),
+                key.clone(),
-                Compare::new(key.clone(), CompareOp::Equal, Some(prev_value)),
+                CompareOp::Equal,
-            ])
+                Some(prev_value),
+            )])
             .and_then(vec![TxnOp::Put(key.clone(), raw_value)])
             .or_else(vec![TxnOp::Get(key.clone())]);
 

src/common/meta/src/key/flow/flow_route.rs

@@ -19,9 +19,12 @@ use serde::{Deserialize, Serialize};
 use snafu::OptionExt;
 
 use crate::error::{self, Result};
+use crate::key::flow::flow_info::FlowInfoValue;
 use crate::key::flow::{flownode_addr_helper, FlowScoped};
 use crate::key::node_address::NodeAddressKey;
-use crate::key::{BytesAdapter, FlowId, FlowPartitionId, MetadataKey, MetadataValue};
+use crate::key::{
+    BytesAdapter, DeserializedValueWithBytes, FlowId, FlowPartitionId, MetadataKey, MetadataValue,
+};
 use crate::kv_backend::txn::{Txn, TxnOp};
 use crate::kv_backend::KvBackendRef;
 use crate::peer::Peer;
@@ -39,7 +42,7 @@ lazy_static! {
 /// The key stores the route info of the flow.
 ///
 /// The layout: `__flow/route/{flow_id}/{partition_id}`.
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Clone, PartialEq)]
 pub struct FlowRouteKey(FlowScoped<FlowRouteKeyInner>);
 
 impl FlowRouteKey {
@@ -142,6 +145,12 @@ pub struct FlowRouteValue {
     pub(crate) peer: Peer,
 }
 
+impl From<Peer> for FlowRouteValue {
+    fn from(peer: Peer) -> Self {
+        Self { peer }
+    }
+}
+
 impl FlowRouteValue {
     /// Returns the `peer`.
     pub fn peer(&self) -> &Peer {
@@ -204,6 +213,33 @@ impl FlowRouteManager {
         Ok(Txn::new().and_then(txns))
     }
 
+    /// Builds a update flow routes transaction.
+    ///
+    /// Puts `__flow/route/{flow_id}/{partition_id}` keys.
+    /// Also removes `__flow/route/{flow_id}/{old_partition_id}` keys.
+    pub(crate) fn build_update_txn<I: IntoIterator<Item = (FlowPartitionId, FlowRouteValue)>>(
+        &self,
+        flow_id: FlowId,
+        current_flow_info: &DeserializedValueWithBytes<FlowInfoValue>,
+        flow_routes: I,
+    ) -> Result<Txn> {
+        let del_txns = current_flow_info
+            .flownode_ids()
+            .iter()
+            .map(|(partition_id, _)| {
+                let key = FlowRouteKey::new(flow_id, *partition_id).to_bytes();
+                Ok(TxnOp::Delete(key))
+            });
+
+        let put_txns = flow_routes.into_iter().map(|(partition_id, route)| {
+            let key = FlowRouteKey::new(flow_id, partition_id).to_bytes();
+
+            Ok(TxnOp::Put(key, route.try_as_raw_value()?))
+        });
+        let txns = del_txns.chain(put_txns).collect::<Result<Vec<_>>>()?;
+        Ok(Txn::new().and_then(txns))
+    }
+
     async fn remap_flow_route_addresses(
         &self,
         flow_routes: &mut [(FlowRouteKey, FlowRouteValue)],

src/common/meta/src/key/flow/flownode_flow.rs

@@ -19,8 +19,9 @@ use regex::Regex;
 use snafu::OptionExt;
 
 use crate::error::{self, Result};
+use crate::key::flow::flow_info::FlowInfoValue;
 use crate::key::flow::FlowScoped;
-use crate::key::{BytesAdapter, FlowId, FlowPartitionId, MetadataKey};
+use crate::key::{BytesAdapter, DeserializedValueWithBytes, FlowId, FlowPartitionId, MetadataKey};
 use crate::kv_backend::txn::{Txn, TxnOp};
 use crate::kv_backend::KvBackendRef;
 use crate::range_stream::{PaginationStream, DEFAULT_PAGE_SIZE};
@@ -165,6 +166,17 @@ impl FlownodeFlowManager {
         Self { kv_backend }
     }
 
+    /// Whether given flow exist on this flownode.
+    pub async fn exists(
+        &self,
+        flownode_id: FlownodeId,
+        flow_id: FlowId,
+        partition_id: FlowPartitionId,
+    ) -> Result<bool> {
+        let key = FlownodeFlowKey::new(flownode_id, flow_id, partition_id).to_bytes();
+        Ok(self.kv_backend.get(&key).await?.is_some())
+    }
+
     /// Retrieves all [FlowId] and [FlowPartitionId]s of the specified `flownode_id`.
     pub fn flows(
         &self,
@@ -202,6 +214,33 @@ impl FlownodeFlowManager {
 
         Txn::new().and_then(txns)
     }
+
+    /// Builds a update flownode flow transaction.
+    ///
+    /// Puts `__flownode_flow/{flownode_id}/{flow_id}/{partition_id}` keys.
+    /// Remove the old `__flownode_flow/{old_flownode_id}/{flow_id}/{old_partition_id}` keys.
+    pub(crate) fn build_update_txn<I: IntoIterator<Item = (FlowPartitionId, FlownodeId)>>(
+        &self,
+        flow_id: FlowId,
+        current_flow_info: &DeserializedValueWithBytes<FlowInfoValue>,
+        flownode_ids: I,
+    ) -> Txn {
+        let del_txns =
+            current_flow_info
+                .flownode_ids()
+                .iter()
+                .map(|(partition_id, flownode_id)| {
+                    let key = FlownodeFlowKey::new(*flownode_id, flow_id, *partition_id).to_bytes();
+                    TxnOp::Delete(key)
+                });
+        let put_txns = flownode_ids.into_iter().map(|(partition_id, flownode_id)| {
+            let key = FlownodeFlowKey::new(flownode_id, flow_id, partition_id).to_bytes();
+            TxnOp::Put(key, vec![])
+        });
+        let txns = del_txns.chain(put_txns).collect::<Vec<_>>();
+
+        Txn::new().and_then(txns)
+    }
 }
 
 #[cfg(test)]

src/common/meta/src/key/flow/table_flow.rs

@@ -22,9 +22,12 @@ use snafu::OptionExt;
 use table::metadata::TableId;
 
 use crate::error::{self, Result};
+use crate::key::flow::flow_info::FlowInfoValue;
 use crate::key::flow::{flownode_addr_helper, FlowScoped};
 use crate::key::node_address::NodeAddressKey;
-use crate::key::{BytesAdapter, FlowId, FlowPartitionId, MetadataKey, MetadataValue};
+use crate::key::{
+    BytesAdapter, DeserializedValueWithBytes, FlowId, FlowPartitionId, MetadataKey, MetadataValue,
+};
 use crate::kv_backend::txn::{Txn, TxnOp};
 use crate::kv_backend::KvBackendRef;
 use crate::peer::Peer;
@@ -215,7 +218,7 @@ impl TableFlowManager {
 
     /// Builds a create table flow transaction.
     ///
-    /// Puts `__flow/source_table/{table_id}/{node_id}/{partition_id}` keys.
+    /// Puts `__flow/source_table/{table_id}/{node_id}/{flow_id}/{partition_id}` keys.
     pub fn build_create_txn(
         &self,
         flow_id: FlowId,
@@ -239,6 +242,44 @@ impl TableFlowManager {
         Ok(Txn::new().and_then(txns))
     }
 
+    /// Builds a update table flow transaction.
+    ///
+    /// Puts `__flow/source_table/{table_id}/{node_id}/{flow_id}/{partition_id}` keys,
+    /// Also remove previous
+    /// `__flow/source_table/{table_id}/{old_node_id}/{flow_id}/{partition_id}` keys.
+    pub fn build_update_txn(
+        &self,
+        flow_id: FlowId,
+        current_flow_info: &DeserializedValueWithBytes<FlowInfoValue>,
+        table_flow_values: Vec<(FlowPartitionId, TableFlowValue)>,
+        source_table_ids: &[TableId],
+    ) -> Result<Txn> {
+        let mut txns = Vec::with_capacity(2 * source_table_ids.len() * table_flow_values.len());
+
+        // first remove the old keys
+        for (part_id, node_id) in current_flow_info.flownode_ids() {
+            for source_table_id in current_flow_info.source_table_ids() {
+                txns.push(TxnOp::Delete(
+                    TableFlowKey::new(*source_table_id, *node_id, flow_id, *part_id).to_bytes(),
+                ));
+            }
+        }
+
+        for (partition_id, table_flow_value) in table_flow_values {
+            let flownode_id = table_flow_value.peer.id;
+            let value = table_flow_value.try_as_raw_value()?;
+            for source_table_id in source_table_ids {
+                txns.push(TxnOp::Put(
+                    TableFlowKey::new(*source_table_id, flownode_id, flow_id, partition_id)
+                        .to_bytes(),
+                    value.clone(),
+                ));
+            }
+        }
+
+        Ok(Txn::new().and_then(txns))
+    }
+
     async fn remap_table_flow_addresses(
         &self,
         table_flows: &mut [(TableFlowKey, TableFlowValue)],

src/common/meta/src/kv_backend.rs

@@ -35,7 +35,7 @@ pub mod memory;
 pub mod rds;
 pub mod test;
 pub mod txn;
-
+pub mod util;
 pub type KvBackendRef<E = Error> = Arc<dyn KvBackend<Error = E> + Send + Sync>;
 
 #[async_trait]

src/common/meta/src/kv_backend/util.rs

@@ -0,0 +1,85 @@
+// Copyright 2023 Greptime Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/// Removes sensitive information like passwords from connection strings.
+///
+/// This function sanitizes connection strings by removing credentials:
+/// - For URL format (mysql://user:password@host:port/db): Removes everything before '@'
+/// - For parameter format (host=localhost password=secret): Removes the password parameter
+/// - For URL format without credentials (mysql://host:port/db): Removes the protocol prefix
+///
+/// # Arguments
+///
+/// * `conn_str` - The connection string to sanitize
+///
+/// # Returns
+///
+/// A sanitized version of the connection string with sensitive information removed
+pub fn sanitize_connection_string(conn_str: &str) -> String {
+    // Case 1: URL format with credentials (mysql://user:password@host:port/db)
+    // Extract everything after the '@' symbol
+    if let Some(at_pos) = conn_str.find('@') {
+        return conn_str[at_pos + 1..].to_string();
+    }
+
+    // Case 2: Parameter format with password (host=localhost password=secret dbname=mydb)
+    // Filter out any parameter that starts with "password="
+    if conn_str.contains("password=") {
+        return conn_str
+            .split_whitespace()
+            .filter(|param| !param.starts_with("password="))
+            .collect::<Vec<_>>()
+            .join(" ");
+    }
+
+    // Case 3: URL format without credentials (mysql://host:port/db)
+    // Extract everything after the protocol prefix
+    if let Some(host_part) = conn_str.split("://").nth(1) {
+        return host_part.to_string();
+    }
+
+    // Case 4: Already sanitized or unknown format
+    // Return as is
+    conn_str.to_string()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_sanitize_connection_string() {
+        // Test URL format with username/password
+        let conn_str = "mysql://user:password123@localhost:3306/db";
+        assert_eq!(sanitize_connection_string(conn_str), "localhost:3306/db");
+
+        // Test URL format without credentials
+        let conn_str = "mysql://localhost:3306/db";
+        assert_eq!(sanitize_connection_string(conn_str), "localhost:3306/db");
+
+        // Test parameter format with password
+        let conn_str = "host=localhost port=5432 user=postgres password=secret dbname=mydb";
+        assert_eq!(
+            sanitize_connection_string(conn_str),
+            "host=localhost port=5432 user=postgres dbname=mydb"
+        );
+
+        // Test parameter format without password
+        let conn_str = "host=localhost port=5432 user=postgres dbname=mydb";
+        assert_eq!(
+            sanitize_connection_string(conn_str),
+            "host=localhost port=5432 user=postgres dbname=mydb"
+        );
+    }
+}

src/common/meta/src/test_util.rs

@@ -20,6 +20,8 @@ use api::v1::region::{InsertRequests, RegionRequest};
 pub use common_base::AffectedRows;
 use common_query::request::QueryRequest;
 use common_recordbatch::SendableRecordBatchStream;
+use common_wal::config::kafka::common::{KafkaConnectionConfig, KafkaTopicConfig};
+use common_wal::config::kafka::MetasrvKafkaConfig;
 
 use crate::cache_invalidator::DummyCacheInvalidator;
 use crate::ddl::flow_meta::FlowMetadataAllocator;
@@ -37,7 +39,8 @@ use crate::peer::{Peer, PeerLookupService};
 use crate::region_keeper::MemoryRegionKeeper;
 use crate::region_registry::LeaderRegionRegistry;
 use crate::sequence::SequenceBuilder;
-use crate::wal_options_allocator::WalOptionsAllocator;
+use crate::wal_options_allocator::topic_pool::KafkaTopicPool;
+use crate::wal_options_allocator::{build_kafka_topic_creator, WalOptionsAllocator};
 use crate::{DatanodeId, FlownodeId};
 
 #[async_trait::async_trait]
@@ -199,3 +202,34 @@ impl PeerLookupService for NoopPeerLookupService {
         Ok(Some(Peer::empty(id)))
     }
 }
+
+/// Create a kafka topic pool for testing.
+pub async fn test_kafka_topic_pool(
+    broker_endpoints: Vec<String>,
+    num_topics: usize,
+    auto_create_topics: bool,
+    topic_name_prefix: Option<&str>,
+) -> KafkaTopicPool {
+    let mut config = MetasrvKafkaConfig {
+        connection: KafkaConnectionConfig {
+            broker_endpoints,
+            ..Default::default()
+        },
+        kafka_topic: KafkaTopicConfig {
+            num_topics,
+
+            ..Default::default()
+        },
+        auto_create_topics,
+        ..Default::default()
+    };
+    if let Some(prefix) = topic_name_prefix {
+        config.kafka_topic.topic_name_prefix = prefix.to_string();
+    }
+    let kv_backend = Arc::new(MemoryKvBackend::new()) as KvBackendRef;
+    let topic_creator = build_kafka_topic_creator(&config.connection, &config.kafka_topic)
+        .await
+        .unwrap();
+
+    KafkaTopicPool::new(&config, kv_backend, topic_creator)
+}

src/common/meta/src/wal_options_allocator.rs

@@ -112,7 +112,9 @@ pub async fn build_wal_options_allocator(
                 NAME_PATTERN_REGEX.is_match(prefix),
                 InvalidTopicNamePrefixSnafu { prefix }
             );
-            let topic_creator = build_kafka_topic_creator(kafka_config).await?;
+            let topic_creator =
+                build_kafka_topic_creator(&kafka_config.connection, &kafka_config.kafka_topic)
+                    .await?;
             let topic_pool = KafkaTopicPool::new(kafka_config, kv_backend, topic_creator);
             Ok(WalOptionsAllocator::Kafka(topic_pool))
         }
@@ -151,13 +153,16 @@ pub fn prepare_wal_options(
 mod tests {
     use std::assert_matches::assert_matches;
 
-    use common_wal::config::kafka::common::{KafkaConnectionConfig, KafkaTopicConfig};
+    use common_wal::config::kafka::common::KafkaTopicConfig;
     use common_wal::config::kafka::MetasrvKafkaConfig;
-    use common_wal::test_util::run_test_with_kafka_wal;
+    use common_wal::maybe_skip_kafka_integration_test;
+    use common_wal::test_util::get_kafka_endpoints;
 
     use super::*;
     use crate::error::Error;
     use crate::kv_backend::memory::MemoryKvBackend;
+    use crate::test_util::test_kafka_topic_pool;
+    use crate::wal_options_allocator::selector::RoundRobinTopicSelector;
 
     // Tests that the wal options allocator could successfully allocate raft-engine wal options.
     #[tokio::test]
@@ -197,55 +202,42 @@ mod tests {
         assert_matches!(got, Error::InvalidTopicNamePrefix { .. });
     }
 
-    // Tests that the wal options allocator could successfully allocate Kafka wal options.
     #[tokio::test]
-    async fn test_allocator_with_kafka() {
+    async fn test_allocator_with_kafka_allocate_wal_options() {
-        run_test_with_kafka_wal(|broker_endpoints| {
+        common_telemetry::init_default_ut_logging();
-            Box::pin(async {
+        maybe_skip_kafka_integration_test!();
-                let topics = (0..256)
+        let num_topics = 5;
-                    .map(|i| format!("test_allocator_with_kafka_{}_{}", i, uuid::Uuid::new_v4()))
+        let mut topic_pool = test_kafka_topic_pool(
-                    .collect::<Vec<_>>();
+            get_kafka_endpoints(),
-
+            num_topics,
-                // Creates a topic manager.
+            true,
-                let kafka_topic = KafkaTopicConfig {
+            Some("test_allocator_with_kafka"),
-                    replication_factor: broker_endpoints.len() as i16,
+        )
-                    ..Default::default()
-                };
-                let config = MetasrvKafkaConfig {
-                    connection: KafkaConnectionConfig {
-                        broker_endpoints,
-                        ..Default::default()
-                    },
-                    kafka_topic,
-                    ..Default::default()
-                };
-                let kv_backend = Arc::new(MemoryKvBackend::new()) as KvBackendRef;
-                let topic_creator = build_kafka_topic_creator(&config).await.unwrap();
-                let mut topic_pool = KafkaTopicPool::new(&config, kv_backend, topic_creator);
-                topic_pool.topics.clone_from(&topics);
-                topic_pool.selector = Arc::new(selector::RoundRobinTopicSelector::default());
-
-                // Creates an options allocator.
-                let allocator = WalOptionsAllocator::Kafka(topic_pool);
-                allocator.start().await.unwrap();
-
-                let num_regions = 32;
-                let regions = (0..num_regions).collect::<Vec<_>>();
-                let got = allocate_region_wal_options(regions.clone(), &allocator, false).unwrap();
-
-                // Check the allocated wal options contain the expected topics.
-                let expected = (0..num_regions)
-                    .map(|i| {
-                        let options = WalOptions::Kafka(KafkaWalOptions {
-                            topic: topics[i as usize].clone(),
-                        });
-                        (i, serde_json::to_string(&options).unwrap())
-                    })
-                    .collect::<HashMap<_, _>>();
-                assert_eq!(got, expected);
-            })
-        })
         .await;
+        topic_pool.selector = Arc::new(RoundRobinTopicSelector::default());
+        let topics = topic_pool.topics.clone();
+        // clean up the topics before test
+        let topic_creator = topic_pool.topic_creator();
+        topic_creator.delete_topics(&topics).await.unwrap();
+
+        // Creates an options allocator.
+        let allocator = WalOptionsAllocator::Kafka(topic_pool);
+        allocator.start().await.unwrap();
+
+        let num_regions = 3;
+        let regions = (0..num_regions).collect::<Vec<_>>();
+        let got = allocate_region_wal_options(regions.clone(), &allocator, false).unwrap();
+
+        // Check the allocated wal options contain the expected topics.
+        let expected = (0..num_regions)
+            .map(|i| {
+                let options = WalOptions::Kafka(KafkaWalOptions {
+                    topic: topics[i as usize].clone(),
+                });
+                (i, serde_json::to_string(&options).unwrap())
+            })
+            .collect::<HashMap<_, _>>();
+        assert_eq!(got, expected);
     }
 
     #[tokio::test]

src/common/meta/src/wal_options_allocator/topic_creator.rs

@@ -12,20 +12,21 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use common_telemetry::{error, info};
+use common_telemetry::{debug, error, info};
-use common_wal::config::kafka::common::DEFAULT_BACKOFF_CONFIG;
+use common_wal::config::kafka::common::{
-use common_wal::config::kafka::MetasrvKafkaConfig;
+    KafkaConnectionConfig, KafkaTopicConfig, DEFAULT_BACKOFF_CONFIG,
+};
 use rskafka::client::error::Error as RsKafkaError;
 use rskafka::client::error::ProtocolError::TopicAlreadyExists;
-use rskafka::client::partition::{Compression, UnknownTopicHandling};
+use rskafka::client::partition::{Compression, OffsetAt, PartitionClient, UnknownTopicHandling};
 use rskafka::client::{Client, ClientBuilder};
 use rskafka::record::Record;
 use snafu::ResultExt;
 
 use crate::error::{
-    BuildKafkaClientSnafu, BuildKafkaCtrlClientSnafu, BuildKafkaPartitionClientSnafu,
+    BuildKafkaClientSnafu, BuildKafkaCtrlClientSnafu, CreateKafkaWalTopicSnafu,
-    CreateKafkaWalTopicSnafu, ProduceRecordSnafu, ResolveKafkaEndpointSnafu, Result,
+    KafkaGetOffsetSnafu, KafkaPartitionClientSnafu, ProduceRecordSnafu, ResolveKafkaEndpointSnafu,
-    TlsConfigSnafu,
+    Result, TlsConfigSnafu,
 };
 
 // Each topic only has one partition for now.
@@ -70,21 +71,47 @@ impl KafkaTopicCreator {
                     info!("The topic {} already exists", topic);
                     Ok(())
                 } else {
-                    error!("Failed to create a topic {}, error {:?}", topic, e);
+                    error!(e; "Failed to create a topic {}", topic);
                     Err(e).context(CreateKafkaWalTopicSnafu)
                 }
             }
         }
     }
 
-    async fn append_noop_record(&self, topic: &String, client: &Client) -> Result<()> {
+    async fn prepare_topic(&self, topic: &String) -> Result<()> {
-        let partition_client = client
+        let partition_client = self.partition_client(topic).await?;
+        self.append_noop_record(topic, &partition_client).await?;
+        Ok(())
+    }
+
+    /// Creates a [PartitionClient] for the given topic.
+    async fn partition_client(&self, topic: &str) -> Result<PartitionClient> {
+        self.client
             .partition_client(topic, DEFAULT_PARTITION, UnknownTopicHandling::Retry)
             .await
-            .context(BuildKafkaPartitionClientSnafu {
+            .context(KafkaPartitionClientSnafu {
                 topic,
                 partition: DEFAULT_PARTITION,
+            })
+    }
+
+    /// Appends a noop record to the topic.
+    /// It only appends a noop record if the topic is empty.
+    async fn append_noop_record(
+        &self,
+        topic: &String,
+        partition_client: &PartitionClient,
+    ) -> Result<()> {
+        let end_offset = partition_client
+            .get_offset(OffsetAt::Latest)
+            .await
+            .context(KafkaGetOffsetSnafu {
+                topic: topic.to_string(),
+                partition: DEFAULT_PARTITION,
             })?;
+        if end_offset > 0 {
+            return Ok(());
+        }
 
         partition_client
             .produce(
@@ -98,22 +125,28 @@ impl KafkaTopicCreator {
             )
             .await
             .context(ProduceRecordSnafu { topic })?;
+        debug!("Appended a noop record to topic {}", topic);
 
         Ok(())
     }
 
+    /// Creates topics in Kafka.
+    pub async fn create_topics(&self, topics: &[String]) -> Result<()> {
+        let tasks = topics
+            .iter()
+            .map(|topic| async { self.create_topic(topic, &self.client).await })
+            .collect::<Vec<_>>();
+        futures::future::try_join_all(tasks).await.map(|_| ())
+    }
+
     /// Prepares topics in Kafka.
-    /// 1. Creates missing topics.
+    ///
-    /// 2. Appends a noop record to each topic.
+    /// It appends a noop record to each topic if the topic is empty.
-    pub async fn prepare_topics(&self, topics: &[&String]) -> Result<()> {
+    pub async fn prepare_topics(&self, topics: &[String]) -> Result<()> {
         // Try to create missing topics.
         let tasks = topics
             .iter()
-            .map(|topic| async {
+            .map(|topic| async { self.prepare_topic(topic).await })
-                self.create_topic(topic, &self.client).await?;
-                self.append_noop_record(topic, &self.client).await?;
-                Ok(())
-            })
             .collect::<Vec<_>>();
         futures::future::try_join_all(tasks).await.map(|_| ())
     }
@@ -129,34 +162,244 @@ impl KafkaTopicCreator {
     }
 }
 
+#[cfg(test)]
+impl KafkaTopicCreator {
+    pub async fn delete_topics(&self, topics: &[String]) -> Result<()> {
+        let tasks = topics
+            .iter()
+            .map(|topic| async { self.delete_topic(topic, &self.client).await })
+            .collect::<Vec<_>>();
+        futures::future::try_join_all(tasks).await.map(|_| ())
+    }
+
+    async fn delete_topic(&self, topic: &String, client: &Client) -> Result<()> {
+        let controller = client
+            .controller_client()
+            .context(BuildKafkaCtrlClientSnafu)?;
+        match controller.delete_topic(topic, 10).await {
+            Ok(_) => {
+                info!("Successfully deleted topic {}", topic);
+                Ok(())
+            }
+            Err(e) => {
+                if Self::is_unknown_topic_err(&e) {
+                    info!("The topic {} does not exist", topic);
+                    Ok(())
+                } else {
+                    panic!("Failed to delete a topic {}, error: {}", topic, e);
+                }
+            }
+        }
+    }
+
+    fn is_unknown_topic_err(e: &RsKafkaError) -> bool {
+        matches!(
+            e,
+            &RsKafkaError::ServerError {
+                protocol_error: rskafka::client::error::ProtocolError::UnknownTopicOrPartition,
+                ..
+            }
+        )
+    }
+
+    pub async fn get_partition_client(&self, topic: &str) -> PartitionClient {
+        self.partition_client(topic).await.unwrap()
+    }
+}
 /// Builds a kafka [Client](rskafka::client::Client).
-pub async fn build_kafka_client(config: &MetasrvKafkaConfig) -> Result<Client> {
+pub async fn build_kafka_client(connection: &KafkaConnectionConfig) -> Result<Client> {
     // Builds an kafka controller client for creating topics.
-    let broker_endpoints = common_wal::resolve_to_ipv4(&config.connection.broker_endpoints)
+    let broker_endpoints = common_wal::resolve_to_ipv4(&connection.broker_endpoints)
         .await
         .context(ResolveKafkaEndpointSnafu)?;
     let mut builder = ClientBuilder::new(broker_endpoints).backoff_config(DEFAULT_BACKOFF_CONFIG);
-    if let Some(sasl) = &config.connection.sasl {
+    if let Some(sasl) = &connection.sasl {
         builder = builder.sasl_config(sasl.config.clone().into_sasl_config());
     };
-    if let Some(tls) = &config.connection.tls {
+    if let Some(tls) = &connection.tls {
         builder = builder.tls_config(tls.to_tls_config().await.context(TlsConfigSnafu)?)
     };
     builder
         .build()
         .await
         .with_context(|_| BuildKafkaClientSnafu {
-            broker_endpoints: config.connection.broker_endpoints.clone(),
+            broker_endpoints: connection.broker_endpoints.clone(),
         })
 }
 
 /// Builds a [KafkaTopicCreator].
-pub async fn build_kafka_topic_creator(config: &MetasrvKafkaConfig) -> Result<KafkaTopicCreator> {
+pub async fn build_kafka_topic_creator(
-    let client = build_kafka_client(config).await?;
+    connection: &KafkaConnectionConfig,
+    kafka_topic: &KafkaTopicConfig,
+) -> Result<KafkaTopicCreator> {
+    let client = build_kafka_client(connection).await?;
     Ok(KafkaTopicCreator {
         client,
-        num_partitions: config.kafka_topic.num_partitions,
+        num_partitions: kafka_topic.num_partitions,
-        replication_factor: config.kafka_topic.replication_factor,
+        replication_factor: kafka_topic.replication_factor,
-        create_topic_timeout: config.kafka_topic.create_topic_timeout.as_millis() as i32,
+        create_topic_timeout: kafka_topic.create_topic_timeout.as_millis() as i32,
     })
 }
+
+#[cfg(test)]
+mod tests {
+    use common_wal::config::kafka::common::{KafkaConnectionConfig, KafkaTopicConfig};
+    use common_wal::maybe_skip_kafka_integration_test;
+    use common_wal::test_util::get_kafka_endpoints;
+
+    use super::*;
+
+    async fn test_topic_creator(broker_endpoints: Vec<String>) -> KafkaTopicCreator {
+        let connection = KafkaConnectionConfig {
+            broker_endpoints,
+            ..Default::default()
+        };
+        let kafka_topic = KafkaTopicConfig::default();
+
+        build_kafka_topic_creator(&connection, &kafka_topic)
+            .await
+            .unwrap()
+    }
+
+    async fn append_records(partition_client: &PartitionClient, num_records: usize) -> Result<()> {
+        for i in 0..num_records {
+            partition_client
+                .produce(
+                    vec![Record {
+                        key: Some(b"test".to_vec()),
+                        value: Some(format!("test {}", i).as_bytes().to_vec()),
+                        timestamp: chrono::Utc::now(),
+                        headers: Default::default(),
+                    }],
+                    Compression::Lz4,
+                )
+                .await
+                .unwrap();
+        }
+        Ok(())
+    }
+
+    #[tokio::test]
+    async fn test_append_noop_record_to_empty_topic() {
+        common_telemetry::init_default_ut_logging();
+        maybe_skip_kafka_integration_test!();
+        let prefix = "append_noop_record_to_empty_topic";
+        let creator = test_topic_creator(get_kafka_endpoints()).await;
+
+        let topic = format!("{}{}", prefix, "0");
+        // Clean up the topics before test
+        creator.delete_topics(&[topic.to_string()]).await.unwrap();
+        creator.create_topics(&[topic.to_string()]).await.unwrap();
+
+        let partition_client = creator.partition_client(&topic).await.unwrap();
+        let end_offset = partition_client.get_offset(OffsetAt::Latest).await.unwrap();
+        assert_eq!(end_offset, 0);
+
+        // The topic is not empty, so no noop record is appended.
+        creator
+            .append_noop_record(&topic, &partition_client)
+            .await
+            .unwrap();
+        let end_offset = partition_client.get_offset(OffsetAt::Latest).await.unwrap();
+        assert_eq!(end_offset, 1);
+    }
+
+    #[tokio::test]
+    async fn test_append_noop_record_to_non_empty_topic() {
+        common_telemetry::init_default_ut_logging();
+        maybe_skip_kafka_integration_test!();
+        let prefix = "append_noop_record_to_non_empty_topic";
+        let creator = test_topic_creator(get_kafka_endpoints()).await;
+
+        let topic = format!("{}{}", prefix, "0");
+        // Clean up the topics before test
+        creator.delete_topics(&[topic.to_string()]).await.unwrap();
+
+        creator.create_topics(&[topic.to_string()]).await.unwrap();
+        let partition_client = creator.partition_client(&topic).await.unwrap();
+        append_records(&partition_client, 2).await.unwrap();
+
+        let end_offset = partition_client.get_offset(OffsetAt::Latest).await.unwrap();
+        assert_eq!(end_offset, 2);
+
+        // The topic is not empty, so no noop record is appended.
+        creator
+            .append_noop_record(&topic, &partition_client)
+            .await
+            .unwrap();
+        let end_offset = partition_client.get_offset(OffsetAt::Latest).await.unwrap();
+        assert_eq!(end_offset, 2);
+    }
+
+    #[tokio::test]
+    async fn test_create_topic() {
+        common_telemetry::init_default_ut_logging();
+        maybe_skip_kafka_integration_test!();
+        let prefix = "create_topic";
+        let creator = test_topic_creator(get_kafka_endpoints()).await;
+
+        let topic = format!("{}{}", prefix, "0");
+        // Clean up the topics before test
+        creator.delete_topics(&[topic.to_string()]).await.unwrap();
+
+        creator.create_topics(&[topic.to_string()]).await.unwrap();
+        // Should be ok
+        creator.create_topics(&[topic.to_string()]).await.unwrap();
+
+        let partition_client = creator.partition_client(&topic).await.unwrap();
+        let end_offset = partition_client.get_offset(OffsetAt::Latest).await.unwrap();
+        assert_eq!(end_offset, 0);
+    }
+
+    #[tokio::test]
+    async fn test_prepare_topic() {
+        common_telemetry::init_default_ut_logging();
+        maybe_skip_kafka_integration_test!();
+        let prefix = "prepare_topic";
+        let creator = test_topic_creator(get_kafka_endpoints()).await;
+
+        let topic = format!("{}{}", prefix, "0");
+        // Clean up the topics before test
+        creator.delete_topics(&[topic.to_string()]).await.unwrap();
+
+        creator.create_topics(&[topic.to_string()]).await.unwrap();
+        creator.prepare_topic(&topic).await.unwrap();
+
+        let partition_client = creator.partition_client(&topic).await.unwrap();
+        let start_offset = partition_client
+            .get_offset(OffsetAt::Earliest)
+            .await
+            .unwrap();
+        assert_eq!(start_offset, 0);
+
+        let end_offset = partition_client.get_offset(OffsetAt::Latest).await.unwrap();
+        assert_eq!(end_offset, 1);
+    }
+
+    #[tokio::test]
+    async fn test_prepare_topic_with_stale_records_without_pruning() {
+        common_telemetry::init_default_ut_logging();
+        maybe_skip_kafka_integration_test!();
+
+        let prefix = "prepare_topic_with_stale_records_without_pruning";
+        let creator = test_topic_creator(get_kafka_endpoints()).await;
+
+        let topic = format!("{}{}", prefix, "0");
+        // Clean up the topics before test
+        creator.delete_topics(&[topic.to_string()]).await.unwrap();
+
+        creator.create_topics(&[topic.to_string()]).await.unwrap();
+        let partition_client = creator.partition_client(&topic).await.unwrap();
+        append_records(&partition_client, 10).await.unwrap();
+
+        creator.prepare_topic(&topic).await.unwrap();
+
+        let end_offset = partition_client.get_offset(OffsetAt::Latest).await.unwrap();
+        assert_eq!(end_offset, 10);
+        let start_offset = partition_client
+            .get_offset(OffsetAt::Earliest)
+            .await
+            .unwrap();
+        assert_eq!(start_offset, 0);
+    }
+}

src/common/meta/src/wal_options_allocator/topic_manager.rs

@@ -40,24 +40,21 @@ impl KafkaTopicManager {
         Ok(topics)
     }
 
-    /// Restores topics from the key-value backend. and returns the topics that are not stored in kvbackend.
+    /// Returns the topics that are not prepared.
-    pub async fn get_topics_to_create<'a>(
+    pub async fn unprepare_topics(&self, all_topics: &[String]) -> Result<Vec<String>> {
-        &self,
-        all_topics: &'a [String],
-    ) -> Result<Vec<&'a String>> {
         let existing_topics = self.restore_topics().await?;
         let existing_topic_set = existing_topics.iter().collect::<HashSet<_>>();
         let mut topics_to_create = Vec::with_capacity(all_topics.len());
         for topic in all_topics {
             if !existing_topic_set.contains(topic) {
-                topics_to_create.push(topic);
+                topics_to_create.push(topic.to_string());
             }
         }
         Ok(topics_to_create)
     }
 
-    /// Persists topics into the key-value backend.
+    /// Persists prepared topics into the key-value backend.
-    pub async fn persist_topics(&self, topics: &[String]) -> Result<()> {
+    pub async fn persist_prepared_topics(&self, topics: &[String]) -> Result<()> {
         self.topic_name_manager
             .batch_put(
                 topics
@@ -70,6 +67,14 @@ impl KafkaTopicManager {
     }
 }
 
+#[cfg(test)]
+impl KafkaTopicManager {
+    /// Lists all topics in the key-value backend.
+    pub async fn list_topics(&self) -> Result<Vec<String>> {
+        self.topic_name_manager.range().await
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use std::sync::Arc;
@@ -90,11 +95,11 @@ mod tests {
 
         // No legacy topics.
         let mut topics_to_be_created = topic_kvbackend_manager
-            .get_topics_to_create(&all_topics)
+            .unprepare_topics(&all_topics)
             .await
             .unwrap();
         topics_to_be_created.sort();
-        let mut expected = all_topics.iter().collect::<Vec<_>>();
+        let mut expected = all_topics.clone();
         expected.sort();
         assert_eq!(expected, topics_to_be_created);
 
@@ -109,7 +114,7 @@ mod tests {
         assert!(res.prev_kv.is_none());
 
         let topics_to_be_created = topic_kvbackend_manager
-            .get_topics_to_create(&all_topics)
+            .unprepare_topics(&all_topics)
             .await
             .unwrap();
         assert!(topics_to_be_created.is_empty());
@@ -144,21 +149,21 @@ mod tests {
         let topic_kvbackend_manager = KafkaTopicManager::new(kv_backend);
 
         let mut topics_to_be_created = topic_kvbackend_manager
-            .get_topics_to_create(&all_topics)
+            .unprepare_topics(&all_topics)
             .await
             .unwrap();
         topics_to_be_created.sort();
-        let mut expected = all_topics.iter().collect::<Vec<_>>();
+        let mut expected = all_topics.clone();
         expected.sort();
         assert_eq!(expected, topics_to_be_created);
 
         // Persists topics to kv backend.
         topic_kvbackend_manager
-            .persist_topics(&all_topics)
+            .persist_prepared_topics(&all_topics)
             .await
             .unwrap();
         let topics_to_be_created = topic_kvbackend_manager
-            .get_topics_to_create(&all_topics)
+            .unprepare_topics(&all_topics)
             .await
             .unwrap();
         assert!(topics_to_be_created.is_empty());

src/common/meta/src/wal_options_allocator/topic_pool.rs

@@ -15,6 +15,7 @@
 use std::fmt::{self, Formatter};
 use std::sync::Arc;
 
+use common_telemetry::info;
 use common_wal::config::kafka::MetasrvKafkaConfig;
 use common_wal::TopicSelectorType;
 use snafu::ensure;
@@ -77,27 +78,35 @@ impl KafkaTopicPool {
     }
 
     /// Tries to activate the topic manager when metasrv becomes the leader.
+    ///
     /// First tries to restore persisted topics from the kv backend.
-    /// If not enough topics retrieved, it will try to contact the Kafka cluster and request creating more topics.
+    /// If there are unprepared topics (topics that exist in the configuration but not in the kv backend),
+    /// it will create these topics in Kafka if `auto_create_topics` is enabled.
+    ///
+    /// Then it prepares all unprepared topics by appending a noop record if the topic is empty,
+    /// and persists them in the kv backend for future use.
     pub async fn activate(&self) -> Result<()> {
-        if !self.auto_create_topics {
-            return Ok(());
-        }
-
         let num_topics = self.topics.len();
         ensure!(num_topics > 0, InvalidNumTopicsSnafu { num_topics });
 
-        let topics_to_be_created = self
+        let unprepared_topics = self.topic_manager.unprepare_topics(&self.topics).await?;
-            .topic_manager
-            .get_topics_to_create(&self.topics)
-            .await?;
 
-        if !topics_to_be_created.is_empty() {
+        if !unprepared_topics.is_empty() {
+            if self.auto_create_topics {
+                info!("Creating {} topics", unprepared_topics.len());
+                self.topic_creator.create_topics(&unprepared_topics).await?;
+            } else {
+                info!("Auto create topics is disabled, skipping topic creation.");
+            }
             self.topic_creator
-                .prepare_topics(&topics_to_be_created)
+                .prepare_topics(&unprepared_topics)
+                .await?;
+            self.topic_manager
+                .persist_prepared_topics(&unprepared_topics)
                 .await?;
-            self.topic_manager.persist_topics(&self.topics).await?;
         }
+        info!("Activated topic pool with {} topics", self.topics.len());
+
         Ok(())
     }
 
@@ -114,77 +123,147 @@ impl KafkaTopicPool {
     }
 }
 
+#[cfg(test)]
+impl KafkaTopicPool {
+    pub(crate) fn topic_manager(&self) -> &KafkaTopicManager {
+        &self.topic_manager
+    }
+
+    pub(crate) fn topic_creator(&self) -> &KafkaTopicCreator {
+        &self.topic_creator
+    }
+}
+
 #[cfg(test)]
 mod tests {
-    use common_wal::config::kafka::common::{KafkaConnectionConfig, KafkaTopicConfig};
+    use std::assert_matches::assert_matches;
-    use common_wal::test_util::run_test_with_kafka_wal;
+
+    use common_wal::maybe_skip_kafka_integration_test;
+    use common_wal::test_util::get_kafka_endpoints;
 
     use super::*;
-    use crate::kv_backend::memory::MemoryKvBackend;
+    use crate::error::Error;
-    use crate::wal_options_allocator::topic_creator::build_kafka_topic_creator;
+    use crate::test_util::test_kafka_topic_pool;
+    use crate::wal_options_allocator::selector::RoundRobinTopicSelector;
+
+    #[tokio::test]
+    async fn test_pool_invalid_number_topics_err() {
+        common_telemetry::init_default_ut_logging();
+        maybe_skip_kafka_integration_test!();
+        let endpoints = get_kafka_endpoints();
+
+        let pool = test_kafka_topic_pool(endpoints.clone(), 0, false, None).await;
+        let err = pool.activate().await.unwrap_err();
+        assert_matches!(err, Error::InvalidNumTopics { .. });
+
+        let pool = test_kafka_topic_pool(endpoints, 0, true, None).await;
+        let err = pool.activate().await.unwrap_err();
+        assert_matches!(err, Error::InvalidNumTopics { .. });
+    }
+
+    #[tokio::test]
+    async fn test_pool_activate_unknown_topics_err() {
+        common_telemetry::init_default_ut_logging();
+        maybe_skip_kafka_integration_test!();
+        let pool =
+            test_kafka_topic_pool(get_kafka_endpoints(), 1, false, Some("unknown_topic")).await;
+        let err = pool.activate().await.unwrap_err();
+        assert_matches!(err, Error::KafkaPartitionClient { .. });
+    }
+
+    #[tokio::test]
+    async fn test_pool_activate() {
+        common_telemetry::init_default_ut_logging();
+        maybe_skip_kafka_integration_test!();
+        let pool =
+            test_kafka_topic_pool(get_kafka_endpoints(), 2, true, Some("pool_activate")).await;
+        // clean up the topics before test
+        let topic_creator = pool.topic_creator();
+        topic_creator.delete_topics(&pool.topics).await.unwrap();
+
+        let topic_manager = pool.topic_manager();
+        pool.activate().await.unwrap();
+        let topics = topic_manager.list_topics().await.unwrap();
+        assert_eq!(topics.len(), 2);
+    }
+
+    #[tokio::test]
+    async fn test_pool_activate_with_existing_topics() {
+        common_telemetry::init_default_ut_logging();
+        maybe_skip_kafka_integration_test!();
+        let prefix = "pool_activate_with_existing_topics";
+        let pool = test_kafka_topic_pool(get_kafka_endpoints(), 2, true, Some(prefix)).await;
+        let topic_creator = pool.topic_creator();
+        topic_creator.delete_topics(&pool.topics).await.unwrap();
+
+        let topic_manager = pool.topic_manager();
+        // persists one topic info, then pool.activate() will create new topics that not persisted.
+        topic_manager
+            .persist_prepared_topics(&pool.topics[0..1])
+            .await
+            .unwrap();
+
+        pool.activate().await.unwrap();
+        let topics = topic_manager.list_topics().await.unwrap();
+        assert_eq!(topics.len(), 2);
+
+        let client = pool.topic_creator().client();
+        let topics = client
+            .list_topics()
+            .await
+            .unwrap()
+            .into_iter()
+            .filter(|t| t.name.starts_with(prefix))
+            .collect::<Vec<_>>();
+        assert_eq!(topics.len(), 1);
+    }
 
     /// Tests that the topic manager could allocate topics correctly.
     #[tokio::test]
     async fn test_alloc_topics() {
-        run_test_with_kafka_wal(|broker_endpoints| {
+        common_telemetry::init_default_ut_logging();
-            Box::pin(async {
+        maybe_skip_kafka_integration_test!();
-                // Constructs topics that should be created.
+        let num_topics = 5;
-                let topics = (0..256)
+        let mut topic_pool = test_kafka_topic_pool(
-                    .map(|i| format!("test_alloc_topics_{}_{}", i, uuid::Uuid::new_v4()))
+            get_kafka_endpoints(),
-                    .collect::<Vec<_>>();
+            num_topics,
-
+            true,
-                // Creates a topic manager.
+            Some("test_allocator_with_kafka"),
-                let kafka_topic = KafkaTopicConfig {
+        )
-                    replication_factor: broker_endpoints.len() as i16,
-                    ..Default::default()
-                };
-                let config = MetasrvKafkaConfig {
-                    connection: KafkaConnectionConfig {
-                        broker_endpoints,
-                        ..Default::default()
-                    },
-                    kafka_topic,
-                    ..Default::default()
-                };
-                let kv_backend = Arc::new(MemoryKvBackend::new()) as KvBackendRef;
-                let topic_creator = build_kafka_topic_creator(&config).await.unwrap();
-                let mut topic_pool = KafkaTopicPool::new(&config, kv_backend, topic_creator);
-                // Replaces the default topic pool with the constructed topics.
-                topic_pool.topics.clone_from(&topics);
-                // Replaces the default selector with a round-robin selector without shuffled.
-                topic_pool.selector = Arc::new(RoundRobinTopicSelector::default());
-                topic_pool.activate().await.unwrap();
-
-                // Selects exactly the number of `num_topics` topics one by one.
-                let got = (0..topics.len())
-                    .map(|_| topic_pool.select().unwrap())
-                    .cloned()
-                    .collect::<Vec<_>>();
-                assert_eq!(got, topics);
-
-                // Selects exactly the number of `num_topics` topics in a batching manner.
-                let got = topic_pool
-                    .select_batch(topics.len())
-                    .unwrap()
-                    .into_iter()
-                    .map(ToString::to_string)
-                    .collect::<Vec<_>>();
-                assert_eq!(got, topics);
-
-                // Selects more than the number of `num_topics` topics.
-                let got = topic_pool
-                    .select_batch(2 * topics.len())
-                    .unwrap()
-                    .into_iter()
-                    .map(ToString::to_string)
-                    .collect::<Vec<_>>();
-                let expected = vec![topics.clone(); 2]
-                    .into_iter()
-                    .flatten()
-                    .collect::<Vec<_>>();
-                assert_eq!(got, expected);
-            })
-        })
         .await;
+        topic_pool.selector = Arc::new(RoundRobinTopicSelector::default());
+        let topics = topic_pool.topics.clone();
+        // clean up the topics before test
+        let topic_creator = topic_pool.topic_creator();
+        topic_creator.delete_topics(&topics).await.unwrap();
+
+        // Selects exactly the number of `num_topics` topics one by one.
+        let got = (0..topics.len())
+            .map(|_| topic_pool.select().unwrap())
+            .cloned()
+            .collect::<Vec<_>>();
+        assert_eq!(got, topics);
+
+        // Selects exactly the number of `num_topics` topics in a batching manner.
+        let got = topic_pool
+            .select_batch(topics.len())
+            .unwrap()
+            .into_iter()
+            .map(ToString::to_string)
+            .collect::<Vec<_>>();
+        assert_eq!(got, topics);
+
+        // Selects more than the number of `num_topics` topics.
+        let got = topic_pool
+            .select_batch(2 * topics.len())
+            .unwrap()
+            .into_iter()
+            .map(ToString::to_string)
+            .collect::<Vec<_>>();
+        let expected = vec![topics.clone(); 2]
+            .into_iter()
+            .flatten()
+            .collect::<Vec<_>>();
+        assert_eq!(got, expected);
     }
 }

src/common/wal/src/config/kafka/common.rs

@@ -23,11 +23,16 @@ use serde::{Deserialize, Serialize};
 use snafu::{OptionExt, ResultExt};
 
 /// The default backoff config for kafka client.
+///
+/// If the operation fails, the client will retry 3 times.
+/// The backoff time is 100ms, 300ms, 900ms.
 pub const DEFAULT_BACKOFF_CONFIG: BackoffConfig = BackoffConfig {
     init_backoff: Duration::from_millis(100),
-    max_backoff: Duration::from_secs(10),
+    max_backoff: Duration::from_secs(1),
-    base: 2.0,
+    base: 3.0,
-    deadline: Some(Duration::from_secs(120)),
+    // The deadline shouldn't be too long,
+    // otherwise the client will block the worker loop for a long time.
+    deadline: Some(Duration::from_secs(3)),
 };
 
 /// Default interval for auto WAL pruning.

src/common/wal/src/test_util.rs

@@ -31,3 +31,33 @@ where
 
     test(endpoints).await
 }
+
+/// Get the kafka endpoints from the environment variable `GT_KAFKA_ENDPOINTS`.
+///
+/// The format of the environment variable is:
+/// ```
+/// GT_KAFKA_ENDPOINTS=localhost:9092,localhost:9093
+/// ```
+pub fn get_kafka_endpoints() -> Vec<String> {
+    let endpoints = std::env::var("GT_KAFKA_ENDPOINTS").unwrap();
+    endpoints
+        .split(',')
+        .map(|s| s.trim().to_string())
+        .collect::<Vec<_>>()
+}
+
+#[macro_export]
+/// Skip the test if the environment variable `GT_KAFKA_ENDPOINTS` is not set.
+///
+/// The format of the environment variable is:
+/// ```
+/// GT_KAFKA_ENDPOINTS=localhost:9092,localhost:9093
+/// ```
+macro_rules! maybe_skip_kafka_integration_test {
+    () => {
+        if std::env::var("GT_KAFKA_ENDPOINTS").is_err() {
+            common_telemetry::warn!("The endpoints is empty, skipping the test");
+            return;
+        }
+    };
+}

src/datanode/src/datanode.rs

@@ -398,45 +398,46 @@ impl DatanodeBuilder {
         schema_metadata_manager: SchemaMetadataManagerRef,
         plugins: Plugins,
     ) -> Result<Vec<RegionEngineRef>> {
-        let mut engines = vec![];
+        let mut metric_engine_config = metric_engine::config::EngineConfig::default();
-        let mut metric_engine_config = opts.region_engine.iter().find_map(|c| match c {
+        let mut mito_engine_config = MitoConfig::default();
-            RegionEngineConfig::Metric(config) => Some(config.clone()),
+        let mut file_engine_config = file_engine::config::EngineConfig::default();
-            _ => None,
-        });
 
         for engine in &opts.region_engine {
             match engine {
                 RegionEngineConfig::Mito(config) => {
-                    let mito_engine = Self::build_mito_engine(
+                    mito_engine_config = config.clone();
-                        opts,
-                        object_store_manager.clone(),
-                        config.clone(),
-                        schema_metadata_manager.clone(),
-                        plugins.clone(),
-                    )
-                    .await?;
-
-                    let metric_engine = MetricEngine::try_new(
-                        mito_engine.clone(),
-                        metric_engine_config.take().unwrap_or_default(),
-                    )
-                    .context(BuildMetricEngineSnafu)?;
-                    engines.push(Arc::new(mito_engine) as _);
-                    engines.push(Arc::new(metric_engine) as _);
                 }
                 RegionEngineConfig::File(config) => {
-                    let engine = FileRegionEngine::new(
+                    file_engine_config = config.clone();
-                        config.clone(),
-                        object_store_manager.default_object_store().clone(), // TODO: implement custom storage for file engine
-                    );
-                    engines.push(Arc::new(engine) as _);
                 }
-                RegionEngineConfig::Metric(_) => {
+                RegionEngineConfig::Metric(metric_config) => {
-                    // Already handled in `build_mito_engine`.
+                    metric_engine_config = metric_config.clone();
                 }
             }
         }
-        Ok(engines)
+
+        let mito_engine = Self::build_mito_engine(
+            opts,
+            object_store_manager.clone(),
+            mito_engine_config,
+            schema_metadata_manager.clone(),
+            plugins.clone(),
+        )
+        .await?;
+
+        let metric_engine = MetricEngine::try_new(mito_engine.clone(), metric_engine_config)
+            .context(BuildMetricEngineSnafu)?;
+
+        let file_engine = FileRegionEngine::new(
+            file_engine_config,
+            object_store_manager.default_object_store().clone(), // TODO: implement custom storage for file engine
+        );
+
+        Ok(vec![
+            Arc::new(mito_engine) as _,
+            Arc::new(metric_engine) as _,
+            Arc::new(file_engine) as _,
+        ])
     }
 
     /// Builds [MitoEngine] according to options.

src/datanode/src/store.rs

@@ -25,6 +25,7 @@ use std::sync::Arc;
 use std::time::Duration;
 
 use common_telemetry::{info, warn};
+use mito2::access_layer::{ATOMIC_WRITE_DIR, OLD_ATOMIC_WRITE_DIR};
 use object_store::layers::{LruCacheLayer, RetryInterceptor, RetryLayer};
 use object_store::services::Fs;
 use object_store::util::{join_dir, normalize_dir, with_instrument_layers};
@@ -168,9 +169,13 @@ async fn build_cache_layer(
     if let Some(path) = cache_path.as_ref()
         && !path.trim().is_empty()
     {
-        let atomic_temp_dir = join_dir(path, ".tmp/");
+        let atomic_temp_dir = join_dir(path, ATOMIC_WRITE_DIR);
         clean_temp_dir(&atomic_temp_dir)?;
 
+        // Compatible code. Remove this after a major release.
+        let old_atomic_temp_dir = join_dir(path, OLD_ATOMIC_WRITE_DIR);
+        clean_temp_dir(&old_atomic_temp_dir)?;
+
         let cache_store = Fs::default()
             .root(path)
             .atomic_write_dir(&atomic_temp_dir)

src/datanode/src/store/fs.rs

@@ -15,6 +15,7 @@
 use std::{fs, path};
 
 use common_telemetry::info;
+use mito2::access_layer::{ATOMIC_WRITE_DIR, OLD_ATOMIC_WRITE_DIR};
 use object_store::services::Fs;
 use object_store::util::join_dir;
 use object_store::ObjectStore;
@@ -33,9 +34,13 @@ pub async fn new_fs_object_store(
         .context(error::CreateDirSnafu { dir: data_home })?;
     info!("The file storage home is: {}", data_home);
 
-    let atomic_write_dir = join_dir(data_home, ".tmp/");
+    let atomic_write_dir = join_dir(data_home, ATOMIC_WRITE_DIR);
     store::clean_temp_dir(&atomic_write_dir)?;
 
+    // Compatible code. Remove this after a major release.
+    let old_atomic_temp_dir = join_dir(data_home, OLD_ATOMIC_WRITE_DIR);
+    store::clean_temp_dir(&old_atomic_temp_dir)?;
+
     let builder = Fs::default()
         .root(data_home)
         .atomic_write_dir(&atomic_write_dir);

src/flow/Cargo.toml

@@ -16,6 +16,7 @@ async-trait.workspace = true
 bytes.workspace = true
 cache.workspace = true
 catalog.workspace = true
+chrono.workspace = true
 client.workspace = true
 common-base.workspace = true
 common-config.workspace = true
@@ -39,16 +40,13 @@ datafusion-expr.workspace = true
 datafusion-physical-expr.workspace = true
 datafusion-substrait.workspace = true
 datatypes.workspace = true
+dfir_rs = { version = "0.13.0", default-features = false }
 enum-as-inner = "0.6.0"
 enum_dispatch = "0.3"
 futures.workspace = true
 get-size2 = "0.1.2"
 greptime-proto.workspace = true
-# This fork of hydroflow is simply for keeping our dependency in our org, and pin the version
-# otherwise it is the same with upstream repo
-chrono.workspace = true
 http.workspace = true
-hydroflow = { git = "https://github.com/GreptimeTeam/hydroflow.git", branch = "main" }
 itertools.workspace = true
 lazy_static.workspace = true
 meta-client.workspace = true
@@ -60,6 +58,7 @@ partition.workspace = true
 prometheus.workspace = true
 prost.workspace = true
 query.workspace = true
+rand.workspace = true
 serde.workspace = true
 servers.workspace = true
 session.workspace = true

src/flow/src/adapter/flownode_impl.rs

@@ -14,6 +14,7 @@
 
 //! impl `FlowNode` trait for FlowNodeManager so standalone can call them
 use std::collections::{HashMap, HashSet};
+use std::sync::atomic::AtomicBool;
 use std::sync::Arc;
 
 use api::v1::flow::{
@@ -37,11 +38,12 @@ use tokio::sync::{Mutex, RwLock};
 
 use crate::adapter::{CreateFlowArgs, StreamingEngine};
 use crate::batching_mode::engine::BatchingEngine;
+use crate::batching_mode::{FRONTEND_SCAN_TIMEOUT, MIN_REFRESH_DURATION};
 use crate::engine::FlowEngine;
 use crate::error::{
-    CreateFlowSnafu, ExternalSnafu, FlowNotFoundSnafu, IllegalCheckTaskStateSnafu,
+    CreateFlowSnafu, ExternalSnafu, FlowNotFoundSnafu, FlowNotRecoveredSnafu,
-    InsertIntoFlowSnafu, InternalSnafu, JoinTaskSnafu, ListFlowsSnafu, SyncCheckTaskSnafu,
+    IllegalCheckTaskStateSnafu, InsertIntoFlowSnafu, InternalSnafu, JoinTaskSnafu, ListFlowsSnafu,
-    UnexpectedSnafu,
+    NoAvailableFrontendSnafu, SyncCheckTaskSnafu, UnexpectedSnafu,
 };
 use crate::metrics::METRIC_FLOW_TASK_COUNT;
 use crate::repr::{self, DiffRow};
@@ -62,6 +64,7 @@ pub struct FlowDualEngine {
     flow_metadata_manager: Arc<FlowMetadataManager>,
     catalog_manager: Arc<dyn CatalogManager>,
     check_task: tokio::sync::Mutex<Option<ConsistentCheckTask>>,
+    done_recovering: AtomicBool,
 }
 
 impl FlowDualEngine {
@@ -78,9 +81,60 @@ impl FlowDualEngine {
             flow_metadata_manager,
             catalog_manager,
             check_task: Mutex::new(None),
+            done_recovering: AtomicBool::new(false),
         }
     }
 
+    /// Set `done_recovering` to true
+    /// indicate that we are ready to handle requests
+    pub fn set_done_recovering(&self) {
+        info!("FlowDualEngine done recovering");
+        self.done_recovering
+            .store(true, std::sync::atomic::Ordering::Release);
+    }
+
+    /// Check if `done_recovering` is true
+    pub fn is_recover_done(&self) -> bool {
+        self.done_recovering
+            .load(std::sync::atomic::Ordering::Acquire)
+    }
+
+    /// wait for recovering to be done, this will only happen when flownode just started
+    async fn wait_for_all_flow_recover(&self, waiting_req_cnt: usize) -> Result<(), Error> {
+        if self.is_recover_done() {
+            return Ok(());
+        }
+
+        warn!(
+            "FlowDualEngine is not done recovering, {} insert request waiting for recovery",
+            waiting_req_cnt
+        );
+        // wait 3 seconds, check every 1 second
+        // TODO(discord9): make this configurable
+        let mut retry = 0;
+        let max_retry = 3;
+        while retry < max_retry && !self.is_recover_done() {
+            warn!(
+                "FlowDualEngine is not done recovering, retry {} in 1s",
+                retry
+            );
+            tokio::time::sleep(std::time::Duration::from_secs(1)).await;
+            retry += 1;
+        }
+        if retry == max_retry {
+            return FlowNotRecoveredSnafu.fail();
+        } else {
+            info!("FlowDualEngine is done recovering");
+        }
+        // TODO(discord9): also put to centralized logging for flow once it implemented
+        Ok(())
+    }
+
+    /// Determine if the engine is in distributed mode
+    pub fn is_distributed(&self) -> bool {
+        self.streaming_engine.node_id.is_some()
+    }
+
     pub fn streaming_engine(&self) -> Arc<StreamingEngine> {
         self.streaming_engine.clone()
     }
@@ -89,6 +143,39 @@ impl FlowDualEngine {
         self.batching_engine.clone()
     }
 
+    /// In distributed mode, scan periodically(1s) until available frontend is found, or timeout,
+    /// in standalone mode, return immediately
+    /// notice here if any frontend appear in cluster info this function will return immediately
+    async fn wait_for_available_frontend(&self, timeout: std::time::Duration) -> Result<(), Error> {
+        if !self.is_distributed() {
+            return Ok(());
+        }
+        let frontend_client = self.batching_engine().frontend_client.clone();
+        let sleep_duration = std::time::Duration::from_millis(1_000);
+        let now = std::time::Instant::now();
+        loop {
+            let frontend_list = frontend_client.scan_for_frontend().await?;
+            if !frontend_list.is_empty() {
+                let fe_list = frontend_list
+                    .iter()
+                    .map(|(_, info)| &info.peer.addr)
+                    .collect::<Vec<_>>();
+                info!("Available frontend found: {:?}", fe_list);
+                return Ok(());
+            }
+            let elapsed = now.elapsed();
+            tokio::time::sleep(sleep_duration).await;
+            info!("Waiting for available frontend, elapsed={:?}", elapsed);
+            if elapsed >= timeout {
+                return NoAvailableFrontendSnafu {
+                    timeout,
+                    context: "No available frontend found in cluster info",
+                }
+                .fail();
+            }
+        }
+    }
+
     /// Try to sync with check task, this is only used in drop flow&flush flow, so a flow id is required
     ///
     /// the need to sync is to make sure flush flow actually get called
@@ -196,7 +283,7 @@ impl FlowDualEngine {
                     to_be_created
                 );
                 let mut errors = vec![];
-                for flow_id in to_be_created {
+                for flow_id in to_be_created.clone() {
                     let flow_id = *flow_id;
                     let info = self
                         .flow_metadata_manager
@@ -255,12 +342,16 @@ impl FlowDualEngine {
                         errors.push((flow_id, err));
                     }
                 }
+                if errors.is_empty() {
+                    info!("Recover flows successfully, flows: {:?}", to_be_created);
+                }
+
                 for (flow_id, err) in errors {
                     warn!("Failed to recreate flow {}, err={:#?}", flow_id, err);
                 }
             } else {
                 warn!(
-                    "Flownode {:?} found flows not exist in flownode, flow_ids={:?}",
+                    "Flows do not exist in flownode for node {:?}, flow_ids={:?}",
                     nodeid, to_be_created
                 );
             }
@@ -280,7 +371,7 @@ impl FlowDualEngine {
                 }
             } else {
                 warn!(
-                    "Flownode {:?} found flows not exist in flownode, flow_ids={:?}",
+                    "Flows do not exist in metadata for node {:?}, flow_ids={:?}",
                     nodeid, to_be_dropped
                 );
             }
@@ -338,18 +429,38 @@ struct ConsistentCheckTask {
 
 impl ConsistentCheckTask {
     async fn start_check_task(engine: &Arc<FlowDualEngine>) -> Result<Self, Error> {
-        // first do recover flows
+        let engine = engine.clone();
-        engine.check_flow_consistent(true, false).await?;
-
-        let inner = engine.clone();
         let (tx, mut rx) = tokio::sync::mpsc::channel(1);
         let (trigger_tx, mut trigger_rx) =
             tokio::sync::mpsc::channel::<(bool, bool, tokio::sync::oneshot::Sender<()>)>(10);
         let handle = common_runtime::spawn_global(async move {
+            // first check if available frontend is found
+            if let Err(err) = engine
+                .wait_for_available_frontend(FRONTEND_SCAN_TIMEOUT)
+                .await
+            {
+                warn!("No frontend is available yet:\n {err:?}");
+            }
+
+            // then do recover flows, if failed, always retry
+            let mut recover_retry = 0;
+            while let Err(err) = engine.check_flow_consistent(true, false).await {
+                recover_retry += 1;
+                error!(
+                    "Failed to recover flows:\n {err:?}, retry {} in {}s",
+                    recover_retry,
+                    MIN_REFRESH_DURATION.as_secs()
+                );
+                tokio::time::sleep(MIN_REFRESH_DURATION).await;
+            }
+
+            engine.set_done_recovering();
+
+            // then do check flows, with configurable allow_create and allow_drop
             let (mut allow_create, mut allow_drop) = (false, false);
             let mut ret_signal: Option<tokio::sync::oneshot::Sender<()>> = None;
             loop {
-                if let Err(err) = inner.check_flow_consistent(allow_create, allow_drop).await {
+                if let Err(err) = engine.check_flow_consistent(allow_create, allow_drop).await {
                     error!(err; "Failed to check flow consistent");
                 }
                 if let Some(done) = ret_signal.take() {
@@ -534,7 +645,12 @@ impl FlowEngine for FlowDualEngine {
         match flow_type {
             Some(FlowType::Batching) => self.batching_engine.flush_flow(flow_id).await,
             Some(FlowType::Streaming) => self.streaming_engine.flush_flow(flow_id).await,
-            None => Ok(0),
+            None => {
+                warn!(
+                    "Currently flow={flow_id} doesn't exist in flownode, ignore flush_flow request"
+                );
+                Ok(0)
+            }
         }
     }
 
@@ -559,11 +675,14 @@ impl FlowEngine for FlowDualEngine {
         &self,
         request: api::v1::region::InsertRequests,
     ) -> Result<(), Error> {
+        self.wait_for_all_flow_recover(request.requests.len())
+            .await?;
         // TODO(discord9): make as little clone as possible
         let mut to_stream_engine = Vec::with_capacity(request.requests.len());
         let mut to_batch_engine = request.requests;
 
         {
+            // not locking this, or recover flows will be starved when also handling flow inserts
             let src_table2flow = self.src_table2flow.read().await;
             to_batch_engine.retain(|req| {
                 let region_id = RegionId::from(req.region_id);
@@ -699,9 +818,17 @@ fn to_meta_err(
     location: snafu::Location,
 ) -> impl FnOnce(crate::error::Error) -> common_meta::error::Error {
     move |err: crate::error::Error| -> common_meta::error::Error {
-        common_meta::error::Error::External {
+        match err {
-            location,
+            crate::error::Error::FlowNotFound { id, .. } => {
-            source: BoxedError::new(err),
+                common_meta::error::Error::FlowNotFound {
+                    flow_name: format!("flow_id={id}"),
+                    location,
+                }
+            }
+            _ => common_meta::error::Error::External {
+                location,
+                source: BoxedError::new(err),
+            },
         }
     }
 }

src/flow/src/adapter/worker.rs

@@ -19,8 +19,8 @@ use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::Arc;
 
 use common_telemetry::info;
+use dfir_rs::scheduled::graph::Dfir;
 use enum_as_inner::EnumAsInner;
-use hydroflow::scheduled::graph::Hydroflow;
 use snafu::ensure;
 use tokio::sync::{broadcast, mpsc, oneshot, Mutex};
 
@@ -49,9 +49,9 @@ pub fn create_worker<'a>() -> (WorkerHandle, Worker<'a>) {
     (worker_handle, worker)
 }
 
-/// ActiveDataflowState is a wrapper around `Hydroflow` and `DataflowState`
+/// ActiveDataflowState is a wrapper around `Dfir` and `DataflowState`
 pub(crate) struct ActiveDataflowState<'subgraph> {
-    df: Hydroflow<'subgraph>,
+    df: Dfir<'subgraph>,
     state: DataflowState,
     err_collector: ErrCollector,
 }
@@ -59,7 +59,7 @@ pub(crate) struct ActiveDataflowState<'subgraph> {
 impl std::fmt::Debug for ActiveDataflowState<'_> {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         f.debug_struct("ActiveDataflowState")
-            .field("df", &"<Hydroflow>")
+            .field("df", &"<Dfir>")
             .field("state", &self.state)
             .field("err_collector", &self.err_collector)
             .finish()
@@ -69,7 +69,7 @@ impl std::fmt::Debug for ActiveDataflowState<'_> {
 impl Default for ActiveDataflowState<'_> {
     fn default() -> Self {
         ActiveDataflowState {
-            df: Hydroflow::new(),
+            df: Dfir::new(),
             state: DataflowState::default(),
             err_collector: ErrCollector::default(),
         }

src/flow/src/batching_mode.rs

@@ -31,10 +31,19 @@ pub const DEFAULT_BATCHING_ENGINE_QUERY_TIMEOUT: Duration = Duration::from_secs(
 pub const SLOW_QUERY_THRESHOLD: Duration = Duration::from_secs(60);
 
 /// The minimum duration between two queries execution by batching mode task
-const MIN_REFRESH_DURATION: Duration = Duration::new(5, 0);
+pub const MIN_REFRESH_DURATION: Duration = Duration::new(5, 0);
 
 /// Grpc connection timeout
 const GRPC_CONN_TIMEOUT: Duration = Duration::from_secs(5);
 
 /// Grpc max retry number
 const GRPC_MAX_RETRIES: u32 = 3;
+
+/// Flow wait for available frontend timeout,
+/// if failed to find available frontend after FRONTEND_SCAN_TIMEOUT elapsed, return error
+/// which should prevent flownode from starting
+pub const FRONTEND_SCAN_TIMEOUT: Duration = Duration::from_secs(30);
+
+/// Frontend activity timeout
+/// if frontend is down(not sending heartbeat) for more than FRONTEND_ACTIVITY_TIMEOUT, it will be removed from the list that flownode use to connect
+pub const FRONTEND_ACTIVITY_TIMEOUT: Duration = Duration::from_secs(60);

src/flow/src/batching_mode/engine.rs

@@ -39,7 +39,8 @@ use crate::batching_mode::time_window::{find_time_window_expr, TimeWindowExpr};
 use crate::batching_mode::utils::sql_to_df_plan;
 use crate::engine::FlowEngine;
 use crate::error::{
-    ExternalSnafu, FlowAlreadyExistSnafu, TableNotFoundMetaSnafu, UnexpectedSnafu, UnsupportedSnafu,
+    ExternalSnafu, FlowAlreadyExistSnafu, FlowNotFoundSnafu, TableNotFoundMetaSnafu,
+    UnexpectedSnafu, UnsupportedSnafu,
 };
 use crate::{CreateFlowArgs, Error, FlowId, TableName};
 
@@ -49,7 +50,8 @@ use crate::{CreateFlowArgs, Error, FlowId, TableName};
 pub struct BatchingEngine {
     tasks: RwLock<BTreeMap<FlowId, BatchingTask>>,
     shutdown_txs: RwLock<BTreeMap<FlowId, oneshot::Sender<()>>>,
-    frontend_client: Arc<FrontendClient>,
+    /// frontend client for insert request
+    pub(crate) frontend_client: Arc<FrontendClient>,
     flow_metadata_manager: FlowMetadataManagerRef,
     table_meta: TableMetadataManagerRef,
     catalog_manager: CatalogManagerRef,
@@ -302,7 +304,7 @@ impl BatchingEngine {
             })
             .transpose()?;
 
-        info!(
+        debug!(
             "Flow id={}, found time window expr={}",
             flow_id,
             phy_expr
@@ -329,7 +331,7 @@ impl BatchingEngine {
         let frontend = self.frontend_client.clone();
 
         // check execute once first to detect any error early
-        task.check_execute(&engine, &frontend).await?;
+        task.check_or_create_sink_table(&engine, &frontend).await?;
 
         // TODO(discord9): use time wheel or what for better
         let handle = common_runtime::spawn_global(async move {
@@ -348,7 +350,8 @@ impl BatchingEngine {
 
     pub async fn remove_flow_inner(&self, flow_id: FlowId) -> Result<(), Error> {
         if self.tasks.write().await.remove(&flow_id).is_none() {
-            warn!("Flow {flow_id} not found in tasks")
+            warn!("Flow {flow_id} not found in tasks");
+            FlowNotFoundSnafu { id: flow_id }.fail()?;
         }
         let Some(tx) = self.shutdown_txs.write().await.remove(&flow_id) else {
             UnexpectedSnafu {
@@ -365,9 +368,7 @@ impl BatchingEngine {
     pub async fn flush_flow_inner(&self, flow_id: FlowId) -> Result<usize, Error> {
         debug!("Try flush flow {flow_id}");
         let task = self.tasks.read().await.get(&flow_id).cloned();
-        let task = task.with_context(|| UnexpectedSnafu {
+        let task = task.with_context(|| FlowNotFoundSnafu { id: flow_id })?;
-            reason: format!("Can't found task for flow {flow_id}"),
-        })?;
 
         task.mark_all_windows_as_dirty()?;
 

src/flow/src/batching_mode/frontend_client.rs

@@ -15,6 +15,7 @@
 //! Frontend client to run flow as batching task which is time-window-aware normal query triggered every tick set by user
 
 use std::sync::{Arc, Weak};
+use std::time::SystemTime;
 
 use api::v1::greptime_request::Request;
 use api::v1::CreateTableExpr;
@@ -27,14 +28,17 @@ use common_meta::rpc::store::RangeRequest;
 use common_query::Output;
 use common_telemetry::warn;
 use meta_client::client::MetaClient;
+use rand::rng;
+use rand::seq::SliceRandom;
 use servers::query_handler::grpc::GrpcQueryHandler;
 use session::context::{QueryContextBuilder, QueryContextRef};
 use snafu::{OptionExt, ResultExt};
 
 use crate::batching_mode::{
-    DEFAULT_BATCHING_ENGINE_QUERY_TIMEOUT, GRPC_CONN_TIMEOUT, GRPC_MAX_RETRIES,
+    DEFAULT_BATCHING_ENGINE_QUERY_TIMEOUT, FRONTEND_ACTIVITY_TIMEOUT, GRPC_CONN_TIMEOUT,
+    GRPC_MAX_RETRIES,
 };
-use crate::error::{ExternalSnafu, InvalidRequestSnafu, UnexpectedSnafu};
+use crate::error::{ExternalSnafu, InvalidRequestSnafu, NoAvailableFrontendSnafu, UnexpectedSnafu};
 use crate::Error;
 
 /// Just like [`GrpcQueryHandler`] but use BoxedError
@@ -127,10 +131,24 @@ impl DatabaseWithPeer {
     fn new(database: Database, peer: Peer) -> Self {
         Self { database, peer }
     }
+
+    /// Try sending a "SELECT 1" to the database
+    async fn try_select_one(&self) -> Result<(), Error> {
+        // notice here use `sql` for `SELECT 1` return 1 row
+        let _ = self
+            .database
+            .sql("SELECT 1")
+            .await
+            .with_context(|_| InvalidRequestSnafu {
+                context: format!("Failed to handle `SELECT 1` request at {:?}", self.peer),
+            })?;
+        Ok(())
+    }
 }
 
 impl FrontendClient {
-    async fn scan_for_frontend(&self) -> Result<Vec<(NodeInfoKey, NodeInfo)>, Error> {
+    /// scan for available frontend from metadata
+    pub(crate) async fn scan_for_frontend(&self) -> Result<Vec<(NodeInfoKey, NodeInfo)>, Error> {
         let Self::Distributed { meta_client, .. } = self else {
             return Ok(vec![]);
         };
@@ -160,8 +178,9 @@ impl FrontendClient {
         Ok(res)
     }
 
-    /// Get the database with max `last_activity_ts`
+    /// Get the frontend with recent enough(less than 1 minute from now) `last_activity_ts`
-    async fn get_last_active_frontend(
+    /// and is able to process query
+    async fn get_random_active_frontend(
         &self,
         catalog: &str,
         schema: &str,
@@ -177,22 +196,50 @@ impl FrontendClient {
             .fail();
         };
 
-        let frontends = self.scan_for_frontend().await?;
+        let mut interval = tokio::time::interval(GRPC_CONN_TIMEOUT);
-        let mut peer = None;
+        interval.tick().await;
+        for retry in 0..GRPC_MAX_RETRIES {
+            let mut frontends = self.scan_for_frontend().await?;
+            let now_in_ms = SystemTime::now()
+                .duration_since(SystemTime::UNIX_EPOCH)
+                .unwrap()
+                .as_millis() as i64;
+            // shuffle the frontends to avoid always pick the same one
+            frontends.shuffle(&mut rng());
 
-        if let Some((_, val)) = frontends.iter().max_by_key(|(_, val)| val.last_activity_ts) {
+            // found node with maximum last_activity_ts
-            peer = Some(val.peer.clone());
+            for (_, node_info) in frontends
+                .iter()
+                // filter out frontend that have been down for more than 1 min
+                .filter(|(_, node_info)| {
+                    node_info.last_activity_ts + FRONTEND_ACTIVITY_TIMEOUT.as_millis() as i64
+                        > now_in_ms
+                })
+            {
+                let addr = &node_info.peer.addr;
+                let client = Client::with_manager_and_urls(chnl_mgr.clone(), vec![addr.clone()]);
+                let database = Database::new(catalog, schema, client);
+                let db = DatabaseWithPeer::new(database, node_info.peer.clone());
+                match db.try_select_one().await {
+                    Ok(_) => return Ok(db),
+                    Err(e) => {
+                        warn!(
+                            "Failed to connect to frontend {} on retry={}: \n{e:?}",
+                            addr, retry
+                        );
+                    }
+                }
+            }
+            // no available frontend
+            // sleep and retry
+            interval.tick().await;
         }
 
-        let Some(peer) = peer else {
+        NoAvailableFrontendSnafu {
-            UnexpectedSnafu {
+            timeout: GRPC_CONN_TIMEOUT,
-                reason: format!("No frontend available: {:?}", frontends),
+            context: "No available frontend found that is able to process query",
-            }
+        }
-            .fail()?
+        .fail()
-        };
-        let client = Client::with_manager_and_urls(chnl_mgr.clone(), vec![peer.addr.clone()]);
-        let database = Database::new(catalog, schema, client);
-        Ok(DatabaseWithPeer::new(database, peer))
     }
 
     pub async fn create(
@@ -222,38 +269,18 @@ impl FrontendClient {
     ) -> Result<u32, Error> {
         match self {
             FrontendClient::Distributed { .. } => {
-                let db = self.get_last_active_frontend(catalog, schema).await?;
+                let db = self.get_random_active_frontend(catalog, schema).await?;
 
                 *peer_desc = Some(PeerDesc::Dist {
                     peer: db.peer.clone(),
                 });
 
-                let mut retry = 0;
+                db.database
-
+                    .handle_with_retry(req.clone(), GRPC_MAX_RETRIES)
-                loop {
+                    .await
-                    let ret = db.database.handle(req.clone()).await.with_context(|_| {
+                    .with_context(|_| InvalidRequestSnafu {
-                        InvalidRequestSnafu {
+                        context: format!("Failed to handle request at {:?}: {:?}", db.peer, req),
-                            context: format!("Failed to handle request: {:?}", req),
+                    })
-                        }
-                    });
-                    if let Err(err) = ret {
-                        if retry < GRPC_MAX_RETRIES {
-                            retry += 1;
-                            warn!(
-                                "Failed to send request to grpc handle at Peer={:?}, retry = {}, error = {:?}",
-                                db.peer, retry, err
-                            );
-                            continue;
-                        } else {
-                            common_telemetry::error!(
-                                "Failed to send request to grpc handle at Peer={:?} after {} retries, error = {:?}",
-                                db.peer, retry, err
-                            );
-                            return Err(err);
-                        }
-                    }
-                    return ret;
-                }
             }
             FrontendClient::Standalone { database_client } => {
                 let ctx = QueryContextBuilder::default()

src/flow/src/batching_mode/state.rs

@@ -71,18 +71,33 @@ impl TaskState {
         self.last_update_time = Instant::now();
     }
 
-    /// wait for at least `last_query_duration`, at most `max_timeout` to start next query
+    /// Compute the next query delay based on the time window size or the last query duration.
+    /// Aiming to avoid too frequent queries. But also not too long delay.
+    /// The delay is computed as follows:
+    /// - If `time_window_size` is set, the delay is half the time window size, constrained to be
+    ///   at least `last_query_duration` and at most `max_timeout`.
+    /// - If `time_window_size` is not set, the delay defaults to `last_query_duration`, constrained
+    ///   to be at least `MIN_REFRESH_DURATION` and at most `max_timeout`.
     ///
-    /// if have more dirty time window, exec next query immediately
+    /// If there are dirty time windows, the function returns an immediate execution time to clean them.
+    /// TODO: Make this behavior configurable.
     pub fn get_next_start_query_time(
         &self,
         flow_id: FlowId,
+        time_window_size: &Option<Duration>,
         max_timeout: Option<Duration>,
     ) -> Instant {
-        let next_duration = max_timeout
+        let last_duration = max_timeout
             .unwrap_or(self.last_query_duration)
-            .min(self.last_query_duration);
+            .min(self.last_query_duration)
-        let next_duration = next_duration.max(MIN_REFRESH_DURATION);
+            .max(MIN_REFRESH_DURATION);
+
+        let next_duration = time_window_size
+            .map(|t| {
+                let half = t / 2;
+                half.max(last_duration)
+            })
+            .unwrap_or(last_duration);
 
         // if have dirty time window, execute immediately to clean dirty time window
         if self.dirty_time_windows.windows.is_empty() {

src/flow/src/batching_mode/task.rs

@@ -142,26 +142,12 @@ impl BatchingTask {
         Ok(())
     }
 
-    /// Test execute, for check syntax or such
+    /// Create sink table if not exists
-    pub async fn check_execute(
+    pub async fn check_or_create_sink_table(
         &self,
         engine: &QueryEngineRef,
         frontend_client: &Arc<FrontendClient>,
     ) -> Result<Option<(u32, Duration)>, Error> {
-        // use current time to test get a dirty time window, which should be safe
-        let start = SystemTime::now();
-        let ts = Timestamp::new_second(
-            start
-                .duration_since(UNIX_EPOCH)
-                .expect("Time went backwards")
-                .as_secs() as _,
-        );
-        self.state
-            .write()
-            .unwrap()
-            .dirty_time_windows
-            .add_lower_bounds(vec![ts].into_iter());
-
         if !self.is_table_exist(&self.config.sink_table_name).await? {
             let create_table = self.gen_create_table_expr(engine.clone()).await?;
             info!(
@@ -174,7 +160,8 @@ impl BatchingTask {
                 self.config.sink_table_name.join(".")
             );
         }
-        self.gen_exec_once(engine, frontend_client).await
+
+        Ok(None)
     }
 
     async fn is_table_exist(&self, table_name: &[String; 3]) -> Result<bool, Error> {
@@ -192,7 +179,7 @@ impl BatchingTask {
         frontend_client: &Arc<FrontendClient>,
     ) -> Result<Option<(u32, Duration)>, Error> {
         if let Some(new_query) = self.gen_insert_plan(engine).await? {
-            debug!("Generate new query: {:#?}", new_query);
+            debug!("Generate new query: {}", new_query);
             self.execute_logical_plan(frontend_client, &new_query).await
         } else {
             debug!("Generate no query");
@@ -393,6 +380,23 @@ impl BatchingTask {
         frontend_client: Arc<FrontendClient>,
     ) {
         loop {
+            // first check if shutdown signal is received
+            // if so, break the loop
+            {
+                let mut state = self.state.write().unwrap();
+                match state.shutdown_rx.try_recv() {
+                    Ok(()) => break,
+                    Err(TryRecvError::Closed) => {
+                        warn!(
+                            "Unexpected shutdown flow {}, shutdown anyway",
+                            self.config.flow_id
+                        );
+                        break;
+                    }
+                    Err(TryRecvError::Empty) => (),
+                }
+            }
+
             let mut new_query = None;
             let mut gen_and_exec = async || {
                 new_query = self.gen_insert_plan(&engine).await?;
@@ -406,20 +410,15 @@ impl BatchingTask {
                 // normal execute, sleep for some time before doing next query
                 Ok(Some(_)) => {
                     let sleep_until = {
-                        let mut state = self.state.write().unwrap();
+                        let state = self.state.write().unwrap();
-                        match state.shutdown_rx.try_recv() {
+
-                            Ok(()) => break,
-                            Err(TryRecvError::Closed) => {
-                                warn!(
-                                    "Unexpected shutdown flow {}, shutdown anyway",
-                                    self.config.flow_id
-                                );
-                                break;
-                            }
-                            Err(TryRecvError::Empty) => (),
-                        }
                         state.get_next_start_query_time(
                             self.config.flow_id,
+                            &self
+                                .config
+                                .time_window_expr
+                                .as_ref()
+                                .and_then(|t| *t.time_window_size()),
                             Some(DEFAULT_BATCHING_ENGINE_QUERY_TIMEOUT),
                         )
                     };

src/flow/src/batching_mode/time_window.rs

@@ -55,6 +55,9 @@ use crate::error::{
 use crate::expr::error::DataTypeSnafu;
 use crate::Error;
 
+/// Represents a test timestamp in seconds since the Unix epoch.
+const DEFAULT_TEST_TIMESTAMP: Timestamp = Timestamp::new_second(17_0000_0000);
+
 /// Time window expr like `date_bin(INTERVAL '1' MINUTE, ts)`, this type help with
 /// evaluating the expr using given timestamp
 ///
@@ -70,6 +73,7 @@ pub struct TimeWindowExpr {
     pub column_name: String,
     logical_expr: Expr,
     df_schema: DFSchema,
+    eval_time_window_size: Option<std::time::Duration>,
 }
 
 impl std::fmt::Display for TimeWindowExpr {
@@ -84,6 +88,11 @@ impl std::fmt::Display for TimeWindowExpr {
 }
 
 impl TimeWindowExpr {
+    /// The time window size of the expr, get from calling `eval` with a test timestamp
+    pub fn time_window_size(&self) -> &Option<std::time::Duration> {
+        &self.eval_time_window_size
+    }
+
     pub fn from_expr(
         expr: &Expr,
         column_name: &str,
@@ -91,12 +100,28 @@ impl TimeWindowExpr {
         session: &SessionState,
     ) -> Result<Self, Error> {
         let phy_expr: PhysicalExprRef = to_phy_expr(expr, df_schema, session)?;
-        Ok(Self {
+        let mut zelf = Self {
             phy_expr,
             column_name: column_name.to_string(),
             logical_expr: expr.clone(),
             df_schema: df_schema.clone(),
-        })
+            eval_time_window_size: None,
+        };
+        let test_ts = DEFAULT_TEST_TIMESTAMP;
+        let (l, u) = zelf.eval(test_ts)?;
+        let time_window_size = match (l, u) {
+            (Some(l), Some(u)) => u.sub(&l).map(|r| r.to_std()).transpose().map_err(|_| {
+                UnexpectedSnafu {
+                    reason: format!(
+                        "Expect upper bound older than lower bound, found upper={u:?} and lower={l:?}"
+                    ),
+                }
+                .build()
+            })?,
+            _ => None,
+        };
+        zelf.eval_time_window_size = time_window_size;
+        Ok(zelf)
     }
 
     pub fn eval(

src/flow/src/batching_mode/utils.rs

@@ -138,9 +138,12 @@ impl TreeNodeVisitor<'_> for FindGroupByFinalName {
     fn f_down(&mut self, node: &Self::Node) -> datafusion_common::Result<TreeNodeRecursion> {
         if let LogicalPlan::Aggregate(aggregate) = node {
             self.group_exprs = Some(aggregate.group_expr.iter().cloned().collect());
-            debug!("Group by exprs: {:?}", self.group_exprs);
+            debug!(
+                "FindGroupByFinalName: Get Group by exprs from Aggregate: {:?}",
+                self.group_exprs
+            );
         } else if let LogicalPlan::Distinct(distinct) = node {
-            debug!("Distinct: {:#?}", distinct);
+            debug!("FindGroupByFinalName: Distinct: {}", node);
             match distinct {
                 Distinct::All(input) => {
                     if let LogicalPlan::TableScan(table_scan) = &**input {
@@ -162,7 +165,10 @@ impl TreeNodeVisitor<'_> for FindGroupByFinalName {
                     self.group_exprs = Some(distinct_on.on_expr.iter().cloned().collect())
                 }
             }
-            debug!("Group by exprs: {:?}", self.group_exprs);
+            debug!(
+                "FindGroupByFinalName: Get Group by exprs from Distinct: {:?}",
+                self.group_exprs
+            );
         }
 
         Ok(TreeNodeRecursion::Continue)

src/flow/src/compute/render.rs

@@ -18,9 +18,9 @@
 
 use std::collections::BTreeMap;
 
-use hydroflow::scheduled::graph::Hydroflow;
+use dfir_rs::scheduled::graph::Dfir;
-use hydroflow::scheduled::graph_ext::GraphExt;
+use dfir_rs::scheduled::graph_ext::GraphExt;
-use hydroflow::scheduled::port::{PortCtx, SEND};
+use dfir_rs::scheduled::port::{PortCtx, SEND};
 use itertools::Itertools;
 use snafu::OptionExt;
 
@@ -38,7 +38,7 @@ mod src_sink;
 /// The Context for build a Operator with id of `GlobalId`
 pub struct Context<'referred, 'df> {
     pub id: GlobalId,
-    pub df: &'referred mut Hydroflow<'df>,
+    pub df: &'referred mut Dfir<'df>,
     pub compute_state: &'referred mut DataflowState,
     /// a list of all collections being used in the operator
     ///
@@ -361,16 +361,16 @@ mod test {
     use std::cell::RefCell;
     use std::rc::Rc;
 
-    use hydroflow::scheduled::graph::Hydroflow;
+    use dfir_rs::scheduled::graph::Dfir;
-    use hydroflow::scheduled::graph_ext::GraphExt;
+    use dfir_rs::scheduled::graph_ext::GraphExt;
-    use hydroflow::scheduled::handoff::VecHandoff;
+    use dfir_rs::scheduled::handoff::VecHandoff;
     use pretty_assertions::assert_eq;
 
     use super::*;
     use crate::repr::Row;
     pub fn run_and_check(
         state: &mut DataflowState,
-        df: &mut Hydroflow,
+        df: &mut Dfir,
         time_range: std::ops::Range<i64>,
         expected: BTreeMap<i64, Vec<DiffRow>>,
         output: Rc<RefCell<Vec<DiffRow>>>,
@@ -416,7 +416,7 @@ mod test {
     }
 
     pub fn harness_test_ctx<'r, 'h>(
-        df: &'r mut Hydroflow<'h>,
+        df: &'r mut Dfir<'h>,
         state: &'r mut DataflowState,
     ) -> Context<'r, 'h> {
         let err_collector = state.get_err_collector();
@@ -436,7 +436,7 @@ mod test {
     /// that is it only emit once, not multiple times
     #[test]
     fn test_render_constant() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let mut state = DataflowState::default();
         let mut ctx = harness_test_ctx(&mut df, &mut state);
 
@@ -473,7 +473,7 @@ mod test {
     /// a simple example to show how to use source and sink
     #[test]
     fn example_source_sink() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let (send_port, recv_port) = df.make_edge::<_, VecHandoff<i32>>("test_handoff");
         df.add_subgraph_source("test_handoff_source", send_port, move |_ctx, send| {
             for i in 0..10 {
@@ -498,8 +498,8 @@ mod test {
 
     #[test]
     fn test_tee_auto_schedule() {
-        use hydroflow::scheduled::handoff::TeeingHandoff as Toff;
+        use dfir_rs::scheduled::handoff::TeeingHandoff as Toff;
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let (send_port, recv_port) = df.make_edge::<_, Toff<i32>>("test_handoff");
         let source = df.add_subgraph_source("test_handoff_source", send_port, move |_ctx, send| {
             for i in 0..10 {

src/flow/src/compute/render/map.rs

@@ -14,8 +14,8 @@
 
 use std::collections::BTreeMap;
 
-use hydroflow::scheduled::graph_ext::GraphExt;
+use dfir_rs::scheduled::graph_ext::GraphExt;
-use hydroflow::scheduled::port::{PortCtx, SEND};
+use dfir_rs::scheduled::port::{PortCtx, SEND};
 use itertools::Itertools;
 use snafu::OptionExt;
 
@@ -256,7 +256,7 @@ fn eval_mfp_core(
 mod test {
 
     use datatypes::data_type::ConcreteDataType;
-    use hydroflow::scheduled::graph::Hydroflow;
+    use dfir_rs::scheduled::graph::Dfir;
 
     use super::*;
     use crate::compute::render::test::{get_output_handle, harness_test_ctx, run_and_check};
@@ -269,7 +269,7 @@ mod test {
     /// namely: if mfp operator can schedule a delete at the correct time
     #[test]
     fn test_render_mfp_with_temporal() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let mut state = DataflowState::default();
         let mut ctx = harness_test_ctx(&mut df, &mut state);
 
@@ -348,7 +348,7 @@ mod test {
     /// that is it filter the rows correctly
     #[test]
     fn test_render_mfp() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let mut state = DataflowState::default();
         let mut ctx = harness_test_ctx(&mut df, &mut state);
 
@@ -388,7 +388,7 @@ mod test {
     /// test if mfp operator can run multiple times within same tick
     #[test]
     fn test_render_mfp_multiple_times() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let mut state = DataflowState::default();
         let mut ctx = harness_test_ctx(&mut df, &mut state);
 

src/flow/src/compute/render/reduce.rs

@@ -22,7 +22,7 @@ use datatypes::data_type::ConcreteDataType;
 use datatypes::prelude::DataType;
 use datatypes::value::{ListValue, Value};
 use datatypes::vectors::{BooleanVector, NullVector};
-use hydroflow::scheduled::graph_ext::GraphExt;
+use dfir_rs::scheduled::graph_ext::GraphExt;
 use itertools::Itertools;
 use snafu::{ensure, OptionExt, ResultExt};
 
@@ -1212,7 +1212,7 @@ mod test {
 
     use common_time::Timestamp;
     use datatypes::data_type::{ConcreteDataType, ConcreteDataType as CDT};
-    use hydroflow::scheduled::graph::Hydroflow;
+    use dfir_rs::scheduled::graph::Dfir;
 
     use super::*;
     use crate::compute::render::test::{get_output_handle, harness_test_ctx, run_and_check};
@@ -1228,7 +1228,7 @@ mod test {
     /// expected: sum(number), window_start, window_end
     #[test]
     fn test_tumble_group_by() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let mut state = DataflowState::default();
         let mut ctx = harness_test_ctx(&mut df, &mut state);
         const START: i64 = 1625097600000;
@@ -1389,7 +1389,7 @@ mod test {
     /// select avg(number) from number;
     #[test]
     fn test_avg_eval() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let mut state = DataflowState::default();
         let mut ctx = harness_test_ctx(&mut df, &mut state);
 
@@ -1500,7 +1500,7 @@ mod test {
     /// | col  | Int64 |
     #[test]
     fn test_basic_distinct() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let mut state = DataflowState::default();
         let mut ctx = harness_test_ctx(&mut df, &mut state);
 
@@ -1556,7 +1556,7 @@ mod test {
     /// | col  | Int64 |
     #[test]
     fn test_basic_batch_reduce_accum() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let mut state = DataflowState::default();
         let now = state.current_time_ref();
         let mut ctx = harness_test_ctx(&mut df, &mut state);
@@ -1662,7 +1662,7 @@ mod test {
     /// | col  | Int64 |
     #[test]
     fn test_basic_reduce_accum() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let mut state = DataflowState::default();
         let mut ctx = harness_test_ctx(&mut df, &mut state);
 
@@ -1739,7 +1739,7 @@ mod test {
     /// this test include even more insert/delete case to cover all case for eval_distinct_core
     #[test]
     fn test_delete_reduce_distinct_accum() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let mut state = DataflowState::default();
         let mut ctx = harness_test_ctx(&mut df, &mut state);
 
@@ -1818,7 +1818,7 @@ mod test {
     /// this test include insert and delete which should cover all case for eval_distinct_core
     #[test]
     fn test_basic_reduce_distinct_accum() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let mut state = DataflowState::default();
         let mut ctx = harness_test_ctx(&mut df, &mut state);
 
@@ -1896,7 +1896,7 @@ mod test {
     /// | col  | Int64 |
     #[test]
     fn test_composite_reduce_distinct_accum() {
-        let mut df = Hydroflow::new();
+        let mut df = Dfir::new();
         let mut state = DataflowState::default();
         let mut ctx = harness_test_ctx(&mut df, &mut state);
 

src/flow/src/compute/render/src_sink.rs

@@ -17,7 +17,7 @@
 use std::collections::BTreeMap;
 
 use common_telemetry::{debug, trace};
-use hydroflow::scheduled::graph_ext::GraphExt;
+use dfir_rs::scheduled::graph_ext::GraphExt;
 use itertools::Itertools;
 use snafu::OptionExt;
 use tokio::sync::broadcast::error::TryRecvError;

src/flow/src/compute/state.rs

@@ -16,16 +16,16 @@ use std::cell::RefCell;
 use std::collections::{BTreeMap, VecDeque};
 use std::rc::Rc;
 
+use dfir_rs::scheduled::graph::Dfir;
+use dfir_rs::scheduled::SubgraphId;
 use get_size2::GetSize;
-use hydroflow::scheduled::graph::Hydroflow;
-use hydroflow::scheduled::SubgraphId;
 
 use crate::compute::types::ErrCollector;
 use crate::repr::{self, Timestamp};
 use crate::utils::{ArrangeHandler, Arrangement};
 
 /// input/output of a dataflow
-/// One `ComputeState` manage the input/output/schedule of one `Hydroflow`
+/// One `ComputeState` manage the input/output/schedule of one `Dfir`
 #[derive(Debug, Default)]
 pub struct DataflowState {
     /// it is important to use a deque to maintain the order of subgraph here
@@ -38,7 +38,7 @@ pub struct DataflowState {
     /// Which means it's also the current time in temporal filter to get current correct result
     as_of: Rc<RefCell<Timestamp>>,
     /// error collector local to this `ComputeState`,
-    /// useful for distinguishing errors from different `Hydroflow`
+    /// useful for distinguishing errors from different `Dfir`
     err_collector: ErrCollector,
     /// save all used arrange in this dataflow, since usually there is no delete operation
     /// we can just keep track of all used arrange and schedule subgraph when they need to be updated
@@ -65,7 +65,7 @@ impl DataflowState {
     /// schedule all subgraph that need to run with time <= `as_of` and run_available()
     ///
     /// return true if any subgraph actually executed
-    pub fn run_available_with_schedule(&mut self, df: &mut Hydroflow) -> bool {
+    pub fn run_available_with_schedule(&mut self, df: &mut Dfir) -> bool {
         // first split keys <= as_of into another map
         let mut before = self
             .schedule_subgraph

src/flow/src/compute/types.rs

@@ -18,10 +18,10 @@ use std::rc::Rc;
 use std::sync::Arc;
 
 use common_error::ext::ErrorExt;
-use hydroflow::scheduled::graph::Hydroflow;
+use dfir_rs::scheduled::graph::Dfir;
-use hydroflow::scheduled::handoff::TeeingHandoff;
+use dfir_rs::scheduled::handoff::TeeingHandoff;
-use hydroflow::scheduled::port::RecvPort;
+use dfir_rs::scheduled::port::RecvPort;
-use hydroflow::scheduled::SubgraphId;
+use dfir_rs::scheduled::SubgraphId;
 use itertools::Itertools;
 use tokio::sync::Mutex;
 
@@ -46,7 +46,7 @@ impl<T: 'static + Clone> Collection<T> {
     /// clone a collection, require a mutable reference to the hydroflow instance
     ///
     /// Note: need to be the same hydroflow instance that this collection is created from
-    pub fn clone(&self, df: &mut Hydroflow) -> Self {
+    pub fn clone(&self, df: &mut Dfir) -> Self {
         Collection {
             stream: self.stream.tee(df),
         }
@@ -151,7 +151,7 @@ impl<T: 'static> CollectionBundle<T> {
 }
 
 impl<T: 'static + Clone> CollectionBundle<T> {
-    pub fn clone(&self, df: &mut Hydroflow) -> Self {
+    pub fn clone(&self, df: &mut Dfir) -> Self {
         Self {
             collection: self.collection.clone(df),
             arranged: self

src/flow/src/error.rs

@@ -46,6 +46,12 @@ pub enum Error {
         location: Location,
     },
 
+    #[snafu(display("Flow engine is still recovering"))]
+    FlowNotRecovered {
+        #[snafu(implicit)]
+        location: Location,
+    },
+
     #[snafu(display("Error encountered while creating flow: {sql}"))]
     CreateFlow {
         sql: String,
@@ -61,6 +67,16 @@ pub enum Error {
         location: Location,
     },
 
+    #[snafu(display(
+        "No available frontend found after timeout: {timeout:?}, context: {context}"
+    ))]
+    NoAvailableFrontend {
+        timeout: std::time::Duration,
+        context: String,
+        #[snafu(implicit)]
+        location: Location,
+    },
+
     #[snafu(display("External error"))]
     External {
         source: BoxedError,
@@ -296,12 +312,14 @@ impl ErrorExt for Error {
             Self::Eval { .. }
             | Self::JoinTask { .. }
             | Self::Datafusion { .. }
-            | Self::InsertIntoFlow { .. } => StatusCode::Internal,
+            | Self::InsertIntoFlow { .. }
+            | Self::NoAvailableFrontend { .. }
+            | Self::FlowNotRecovered { .. } => StatusCode::Internal,
             Self::FlowAlreadyExist { .. } => StatusCode::TableAlreadyExists,
             Self::TableNotFound { .. }
             | Self::TableNotFoundMeta { .. }
-            | Self::FlowNotFound { .. }
             | Self::ListFlows { .. } => StatusCode::TableNotFound,
+            Self::FlowNotFound { .. } => StatusCode::FlowNotFound,
             Self::Plan { .. } | Self::Datatypes { .. } => StatusCode::PlanQuery,
             Self::CreateFlow { .. } | Self::Arrow { .. } | Self::Time { .. } => {
                 StatusCode::EngineExecuteQuery

src/flow/src/expr/scalar.rs

@@ -21,7 +21,7 @@ use common_error::ext::BoxedError;
 use datatypes::prelude::{ConcreteDataType, DataType};
 use datatypes::value::Value;
 use datatypes::vectors::{BooleanVector, Helper, VectorRef};
-use hydroflow::lattices::cc_traits::Iter;
+use dfir_rs::lattices::cc_traits::Iter;
 use itertools::Itertools;
 use snafu::{ensure, OptionExt, ResultExt};
 

src/flow/src/expr/signature.rs

@@ -60,7 +60,7 @@ pub enum GenericFn {
     Mul,
     Div,
     Mod,
-    // varadic func
+    // variadic func
     And,
     Or,
     // unmaterized func

src/flow/src/server.rs

@@ -43,7 +43,7 @@ use servers::error::{StartGrpcSnafu, TcpBindSnafu, TcpIncomingSnafu};
 use servers::http::HttpServerBuilder;
 use servers::metrics_handler::MetricsHandler;
 use servers::server::{ServerHandler, ServerHandlers};
-use session::context::{QueryContextBuilder, QueryContextRef};
+use session::context::QueryContextRef;
 use snafu::{OptionExt, ResultExt};
 use tokio::net::TcpListener;
 use tokio::sync::{broadcast, oneshot, Mutex};
@@ -54,18 +54,18 @@ use tonic::{Request, Response, Status};
 use crate::adapter::flownode_impl::{FlowDualEngine, FlowDualEngineRef};
 use crate::adapter::{create_worker, FlowStreamingEngineRef};
 use crate::batching_mode::engine::BatchingEngine;
-use crate::engine::FlowEngine;
 use crate::error::{
-    to_status_with_last_err, CacheRequiredSnafu, CreateFlowSnafu, ExternalSnafu, FlowNotFoundSnafu,
+    to_status_with_last_err, CacheRequiredSnafu, ExternalSnafu, ListFlowsSnafu, ParseAddrSnafu,
-    ListFlowsSnafu, ParseAddrSnafu, ShutdownServerSnafu, StartServerSnafu, UnexpectedSnafu,
+    ShutdownServerSnafu, StartServerSnafu, UnexpectedSnafu,
 };
 use crate::heartbeat::HeartbeatTask;
 use crate::metrics::{METRIC_FLOW_PROCESSING_TIME, METRIC_FLOW_ROWS};
 use crate::transform::register_function_to_query_engine;
 use crate::utils::{SizeReportSender, StateReportHandler};
-use crate::{CreateFlowArgs, Error, FlownodeOptions, FrontendClient, StreamingEngine};
+use crate::{Error, FlownodeOptions, FrontendClient, StreamingEngine};
 
 pub const FLOW_NODE_SERVER_NAME: &str = "FLOW_NODE_SERVER";
+
 /// wrapping flow node manager to avoid orphan rule with Arc<...>
 #[derive(Clone)]
 pub struct FlowService {
@@ -172,6 +172,8 @@ impl FlownodeServer {
     }
 
     /// Start the background task for streaming computation.
+    ///
+    /// Should be called only after heartbeat is establish, hence can get cluster info
     async fn start_workers(&self) -> Result<(), Error> {
         let manager_ref = self.inner.flow_service.dual_engine.clone();
         let handle = manager_ref
@@ -395,109 +397,6 @@ impl FlownodeBuilder {
         Ok(instance)
     }
 
-    /// recover all flow tasks in this flownode in distributed mode(nodeid is Some(<num>))
-    ///
-    /// or recover all existing flow tasks if in standalone mode(nodeid is None)
-    ///
-    /// TODO(discord9): persistent flow tasks with internal state
-    async fn recover_flows(&self, manager: &FlowDualEngine) -> Result<usize, Error> {
-        let nodeid = self.opts.node_id;
-        let to_be_recovered: Vec<_> = if let Some(nodeid) = nodeid {
-            let to_be_recover = self
-                .flow_metadata_manager
-                .flownode_flow_manager()
-                .flows(nodeid)
-                .try_collect::<Vec<_>>()
-                .await
-                .context(ListFlowsSnafu { id: Some(nodeid) })?;
-            to_be_recover.into_iter().map(|(id, _)| id).collect()
-        } else {
-            let all_catalogs = self
-                .catalog_manager
-                .catalog_names()
-                .await
-                .map_err(BoxedError::new)
-                .context(ExternalSnafu)?;
-            let mut all_flow_ids = vec![];
-            for catalog in all_catalogs {
-                let flows = self
-                    .flow_metadata_manager
-                    .flow_name_manager()
-                    .flow_names(&catalog)
-                    .await
-                    .try_collect::<Vec<_>>()
-                    .await
-                    .map_err(BoxedError::new)
-                    .context(ExternalSnafu)?;
-
-                all_flow_ids.extend(flows.into_iter().map(|(_, id)| id.flow_id()));
-            }
-            all_flow_ids
-        };
-        let cnt = to_be_recovered.len();
-
-        // TODO(discord9): recover in parallel
-        info!("Recovering {} flows: {:?}", cnt, to_be_recovered);
-        for flow_id in to_be_recovered {
-            let info = self
-                .flow_metadata_manager
-                .flow_info_manager()
-                .get(flow_id)
-                .await
-                .map_err(BoxedError::new)
-                .context(ExternalSnafu)?
-                .context(FlowNotFoundSnafu { id: flow_id })?;
-
-            let sink_table_name = [
-                info.sink_table_name().catalog_name.clone(),
-                info.sink_table_name().schema_name.clone(),
-                info.sink_table_name().table_name.clone(),
-            ];
-
-            let args = CreateFlowArgs {
-                flow_id: flow_id as _,
-                sink_table_name,
-                source_table_ids: info.source_table_ids().to_vec(),
-                // because recover should only happen on restart the `create_if_not_exists` and `or_replace` can be arbitrary value(since flow doesn't exist)
-                // but for the sake of consistency and to make sure recover of flow actually happen, we set both to true
-                // (which is also fine since checks for not allow both to be true is on metasrv and we already pass that)
-                create_if_not_exists: true,
-                or_replace: true,
-                expire_after: info.expire_after(),
-                comment: Some(info.comment().clone()),
-                sql: info.raw_sql().clone(),
-                flow_options: info.options().clone(),
-                query_ctx: info
-                    .query_context()
-                    .clone()
-                    .map(|ctx| {
-                        ctx.try_into()
-                            .map_err(BoxedError::new)
-                            .context(ExternalSnafu)
-                    })
-                    .transpose()?
-                    // or use default QueryContext with catalog_name from info
-                    // to keep compatibility with old version
-                    .or_else(|| {
-                        Some(
-                            QueryContextBuilder::default()
-                                .current_catalog(info.catalog_name().to_string())
-                                .build(),
-                        )
-                    }),
-            };
-            manager
-                .create_flow(args)
-                .await
-                .map_err(BoxedError::new)
-                .with_context(|_| CreateFlowSnafu {
-                    sql: info.raw_sql().clone(),
-                })?;
-        }
-
-        Ok(cnt)
-    }
-
     /// build [`FlowWorkerManager`], note this doesn't take ownership of `self`,
     /// nor does it actually start running the worker.
     async fn build_manager(
@@ -682,7 +581,7 @@ impl FrontendInvoker {
             .start_timer();
 
         self.inserter
-            .handle_row_inserts(requests, ctx, &self.statement_executor)
+            .handle_row_inserts(requests, ctx, &self.statement_executor, false, false)
             .await
             .map_err(BoxedError::new)
             .context(common_frontend::error::ExternalSnafu)

src/frontend/src/instance/grpc.rs

@@ -72,7 +72,10 @@ impl GrpcQueryHandler for Instance {
 
         let output = match request {
             Request::Inserts(requests) => self.handle_inserts(requests, ctx.clone()).await?,
-            Request::RowInserts(requests) => self.handle_row_inserts(requests, ctx.clone()).await?,
+            Request::RowInserts(requests) => {
+                self.handle_row_inserts(requests, ctx.clone(), false, false)
+                    .await?
+            }
             Request::Deletes(requests) => self.handle_deletes(requests, ctx.clone()).await?,
             Request::RowDeletes(requests) => self.handle_row_deletes(requests, ctx.clone()).await?,
             Request::Query(query_request) => {
@@ -407,9 +410,17 @@ impl Instance {
         &self,
         requests: RowInsertRequests,
         ctx: QueryContextRef,
+        accommodate_existing_schema: bool,
+        is_single_value: bool,
     ) -> Result<Output> {
         self.inserter
-            .handle_row_inserts(requests, ctx, self.statement_executor.as_ref())
+            .handle_row_inserts(
+                requests,
+                ctx,
+                self.statement_executor.as_ref(),
+                accommodate_existing_schema,
+                is_single_value,
+            )
             .await
             .context(TableOperationSnafu)
     }
@@ -421,7 +432,14 @@ impl Instance {
         ctx: QueryContextRef,
     ) -> Result<Output> {
         self.inserter
-            .handle_last_non_null_inserts(requests, ctx, self.statement_executor.as_ref())
+            .handle_last_non_null_inserts(
+                requests,
+                ctx,
+                self.statement_executor.as_ref(),
+                true,
+                // Influx protocol may writes multiple fields (values).
+                false,
+            )
             .await
             .context(TableOperationSnafu)
     }

src/frontend/src/instance/opentsdb.rs

@@ -52,8 +52,9 @@ impl OpentsdbProtocolHandler for Instance {
             None
         };
 
+        // OpenTSDB is single value.
         let output = self
-            .handle_row_inserts(requests, ctx)
+            .handle_row_inserts(requests, ctx, true, true)
             .await
             .map_err(BoxedError::new)
             .context(servers::error::ExecuteGrpcQuerySnafu)?;

src/frontend/src/instance/otlp.rs

@@ -63,7 +63,7 @@ impl OpenTelemetryProtocolHandler for Instance {
             None
         };
 
-        self.handle_row_inserts(requests, ctx)
+        self.handle_row_inserts(requests, ctx, false, false)
             .await
             .map_err(BoxedError::new)
             .context(error::ExecuteGrpcQuerySnafu)

src/frontend/src/instance/prom_store.rs

@@ -195,7 +195,7 @@ impl PromStoreProtocolHandler for Instance {
                 .map_err(BoxedError::new)
                 .context(error::ExecuteGrpcQuerySnafu)?
         } else {
-            self.handle_row_inserts(request, ctx.clone())
+            self.handle_row_inserts(request, ctx.clone(), true, true)
                 .await
                 .map_err(BoxedError::new)
                 .context(error::ExecuteGrpcQuerySnafu)?

src/log-store/src/kafka/client_manager.rs

@@ -182,6 +182,14 @@ impl ClientManager {
     }
 }
 
+#[cfg(test)]
+impl ClientManager {
+    /// Returns the controller client.
+    pub(crate) fn controller_client(&self) -> rskafka::client::controller::ControllerClient {
+        self.client.controller_client().unwrap()
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use common_wal::test_util::run_test_with_kafka_wal;

src/log-store/src/kafka/log_store.rs

@@ -552,6 +552,14 @@ mod tests {
             .collect()
     }
 
+    async fn prepare_topic(logstore: &KafkaLogStore, topic_name: &str) {
+        let controller_client = logstore.client_manager.controller_client();
+        controller_client
+            .create_topic(topic_name.to_string(), 1, 1, 5000)
+            .await
+            .unwrap();
+    }
+
     #[tokio::test]
     async fn test_append_batch_basic() {
         common_telemetry::init_default_ut_logging();
@@ -573,7 +581,9 @@ mod tests {
         };
         let logstore = KafkaLogStore::try_new(&config, None).await.unwrap();
         let topic_name = uuid::Uuid::new_v4().to_string();
+        prepare_topic(&logstore, &topic_name).await;
         let provider = Provider::kafka_provider(topic_name);
+
         let region_entries = (0..5)
             .map(|i| {
                 let region_id = RegionId::new(1, i);
@@ -647,6 +657,7 @@ mod tests {
         };
         let logstore = KafkaLogStore::try_new(&config, None).await.unwrap();
         let topic_name = uuid::Uuid::new_v4().to_string();
+        prepare_topic(&logstore, &topic_name).await;
         let provider = Provider::kafka_provider(topic_name);
         let region_entries = (0..5)
             .map(|i| {

src/meta-srv/src/metasrv.rs

@@ -14,7 +14,7 @@
 
 pub mod builder;
 
-use std::fmt::Display;
+use std::fmt::{self, Display};
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, Mutex, RwLock};
 use std::time::Duration;
@@ -96,7 +96,7 @@ pub enum BackendImpl {
     MysqlStore,
 }
 
-#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+#[derive(Clone, PartialEq, Serialize, Deserialize)]
 #[serde(default)]
 pub struct MetasrvOptions {
     /// The address the server listens on.
@@ -166,6 +166,47 @@ pub struct MetasrvOptions {
     pub node_max_idle_time: Duration,
 }
 
+impl fmt::Debug for MetasrvOptions {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let mut debug_struct = f.debug_struct("MetasrvOptions");
+        debug_struct
+            .field("bind_addr", &self.bind_addr)
+            .field("server_addr", &self.server_addr)
+            .field("store_addrs", &self.sanitize_store_addrs())
+            .field("selector", &self.selector)
+            .field("use_memory_store", &self.use_memory_store)
+            .field("enable_region_failover", &self.enable_region_failover)
+            .field(
+                "allow_region_failover_on_local_wal",
+                &self.allow_region_failover_on_local_wal,
+            )
+            .field("http", &self.http)
+            .field("logging", &self.logging)
+            .field("procedure", &self.procedure)
+            .field("failure_detector", &self.failure_detector)
+            .field("datanode", &self.datanode)
+            .field("enable_telemetry", &self.enable_telemetry)
+            .field("data_home", &self.data_home)
+            .field("wal", &self.wal)
+            .field("export_metrics", &self.export_metrics)
+            .field("store_key_prefix", &self.store_key_prefix)
+            .field("max_txn_ops", &self.max_txn_ops)
+            .field("flush_stats_factor", &self.flush_stats_factor)
+            .field("tracing", &self.tracing)
+            .field("backend", &self.backend);
+
+        #[cfg(any(feature = "pg_kvbackend", feature = "mysql_kvbackend"))]
+        debug_struct.field("meta_table_name", &self.meta_table_name);
+
+        #[cfg(feature = "pg_kvbackend")]
+        debug_struct.field("meta_election_lock_id", &self.meta_election_lock_id);
+
+        debug_struct
+            .field("node_max_idle_time", &self.node_max_idle_time)
+            .finish()
+    }
+}
+
 const DEFAULT_METASRV_ADDR_PORT: &str = "3002";
 
 impl Default for MetasrvOptions {
@@ -249,6 +290,13 @@ impl MetasrvOptions {
             common_telemetry::debug!("detect local IP is not supported on Android");
         }
     }
+
+    fn sanitize_store_addrs(&self) -> Vec<String> {
+        self.store_addrs
+            .iter()
+            .map(|addr| common_meta::kv_backend::util::sanitize_connection_string(addr))
+            .collect()
+    }
 }
 
 pub struct MetasrvInfo {

src/meta-srv/src/metasrv/builder.rs

@@ -365,7 +365,7 @@ impl MetasrvBuilder {
             let (tx, rx) = WalPruneManager::channel();
             // Safety: Must be remote WAL.
             let remote_wal_options = options.wal.remote_wal_options().unwrap();
-            let kafka_client = build_kafka_client(remote_wal_options)
+            let kafka_client = build_kafka_client(&remote_wal_options.connection)
                 .await
                 .context(error::BuildKafkaClientSnafu)?;
             let wal_prune_context = WalPruneContext {

src/meta-srv/src/procedure/wal_prune.rs

@@ -52,7 +52,7 @@ use crate::Result;
 
 pub type KafkaClientRef = Arc<Client>;
 
-const DELETE_RECORDS_TIMEOUT: Duration = Duration::from_secs(1);
+const DELETE_RECORDS_TIMEOUT: Duration = Duration::from_secs(5);
 
 /// The state of WAL pruning.
 #[derive(Debug, Serialize, Deserialize)]
@@ -558,6 +558,7 @@ mod tests {
                 topic_name = format!("test_procedure_execution-{}", topic_name);
                 let mut env = TestEnv::new();
                 let context = env.build_wal_prune_context(broker_endpoints).await;
+                TestEnv::prepare_topic(&context.client, &topic_name).await;
                 let mut procedure = WalPruneProcedure::new(topic_name.clone(), context, 10, None);
 
                 // Before any data in kvbackend is mocked, should return a retryable error.

src/meta-srv/src/procedure/wal_prune/test_util.rs

@@ -78,7 +78,7 @@ impl TestEnv {
             kafka_topic,
             ..Default::default()
         };
-        Arc::new(build_kafka_client(&config).await.unwrap())
+        Arc::new(build_kafka_client(&config.connection).await.unwrap())
     }
 
     pub async fn build_wal_prune_context(&self, broker_endpoints: Vec<String>) -> WalPruneContext {
@@ -91,4 +91,12 @@ impl TestEnv {
             mailbox: self.mailbox.mailbox().clone(),
         }
     }
+
+    pub async fn prepare_topic(client: &Arc<Client>, topic_name: &str) {
+        let controller_client = client.controller_client().unwrap();
+        controller_client
+            .create_topic(topic_name.to_string(), 1, 1, 5000)
+            .await
+            .unwrap();
+    }
 }

src/metric-engine/src/data_region.rs

@@ -206,7 +206,9 @@ impl DataRegion {
     ) -> Result<AffectedRows> {
         match request.kind {
             AlterKind::SetRegionOptions { options: _ }
-            | AlterKind::UnsetRegionOptions { keys: _ } => {
+            | AlterKind::UnsetRegionOptions { keys: _ }
+            | AlterKind::SetIndex { options: _ }
+            | AlterKind::UnsetIndex { options: _ } => {
                 let region_id = utils::to_data_region_id(region_id);
                 self.mito
                     .handle_request(region_id, RegionRequest::Alter(request))

src/mito2/src/access_layer.rs

@@ -16,7 +16,7 @@ use std::sync::Arc;
 
 use object_store::services::Fs;
 use object_store::util::{join_dir, with_instrument_layers};
-use object_store::ObjectStore;
+use object_store::{ErrorKind, ObjectStore};
 use smallvec::SmallVec;
 use snafu::ResultExt;
 use store_api::metadata::RegionMetadataRef;
@@ -42,6 +42,10 @@ pub type AccessLayerRef = Arc<AccessLayer>;
 /// SST write results.
 pub type SstInfoArray = SmallVec<[SstInfo; 2]>;
 
+pub const ATOMIC_WRITE_DIR: &str = "tmp/";
+/// For compatibility. Remove this after a major version release.
+pub const OLD_ATOMIC_WRITE_DIR: &str = ".tmp/";
+
 /// A layer to access SST files under the same directory.
 pub struct AccessLayer {
     region_dir: String,
@@ -160,13 +164,18 @@ impl AccessLayer {
                 fulltext_index_config: request.fulltext_index_config,
                 bloom_filter_index_config: request.bloom_filter_index_config,
             };
+            // We disable write cache on file system but we still use atomic write.
+            // TODO(yingwen): If we support other non-fs stores without the write cache, then
+            // we may have find a way to check whether we need the cleaner.
+            let cleaner = TempFileCleaner::new(region_id, self.object_store.clone());
             let mut writer = ParquetWriter::new_with_object_store(
                 self.object_store.clone(),
                 request.metadata,
                 indexer_builder,
                 path_provider,
             )
-            .await;
+            .await
+            .with_file_cleaner(cleaner);
             writer
                 .write_all(request.source, request.max_sequence, write_opts)
                 .await?
@@ -213,10 +222,85 @@ pub struct SstWriteRequest {
     pub bloom_filter_index_config: BloomFilterConfig,
 }
 
+/// Cleaner to remove temp files on the atomic write dir.
+pub(crate) struct TempFileCleaner {
+    region_id: RegionId,
+    object_store: ObjectStore,
+}
+
+impl TempFileCleaner {
+    /// Constructs the cleaner for the region and store.
+    pub(crate) fn new(region_id: RegionId, object_store: ObjectStore) -> Self {
+        Self {
+            region_id,
+            object_store,
+        }
+    }
+
+    /// Removes the SST and index file from the local atomic dir by the file id.
+    pub(crate) async fn clean_by_file_id(&self, file_id: FileId) {
+        let sst_key = IndexKey::new(self.region_id, file_id, FileType::Parquet).to_string();
+        let index_key = IndexKey::new(self.region_id, file_id, FileType::Puffin).to_string();
+
+        Self::clean_atomic_dir_files(&self.object_store, &[&sst_key, &index_key]).await;
+    }
+
+    /// Removes the files from the local atomic dir by their names.
+    pub(crate) async fn clean_atomic_dir_files(
+        local_store: &ObjectStore,
+        names_to_remove: &[&str],
+    ) {
+        // We don't know the actual suffix of the file under atomic dir, so we have
+        // to list the dir. The cost should be acceptable as there won't be to many files.
+        let Ok(entries) = local_store.list(ATOMIC_WRITE_DIR).await.inspect_err(|e| {
+            if e.kind() != ErrorKind::NotFound {
+                common_telemetry::error!(e; "Failed to list tmp files for {:?}", names_to_remove)
+            }
+        }) else {
+            return;
+        };
+
+        // In our case, we can ensure the file id is unique so it is safe to remove all files
+        // with the same file id under the atomic write dir.
+        let actual_files: Vec<_> = entries
+            .into_iter()
+            .filter_map(|entry| {
+                if entry.metadata().is_dir() {
+                    return None;
+                }
+
+                // Remove name that matches files_to_remove.
+                let should_remove = names_to_remove
+                    .iter()
+                    .any(|file| entry.name().starts_with(file));
+                if should_remove {
+                    Some(entry.path().to_string())
+                } else {
+                    None
+                }
+            })
+            .collect();
+
+        common_telemetry::warn!(
+            "Clean files {:?} under atomic write dir for {:?}",
+            actual_files,
+            names_to_remove
+        );
+
+        if let Err(e) = local_store.delete_iter(actual_files).await {
+            common_telemetry::error!(e; "Failed to delete tmp file for {:?}", names_to_remove);
+        }
+    }
+}
+
 pub(crate) async fn new_fs_cache_store(root: &str) -> Result<ObjectStore> {
-    let atomic_write_dir = join_dir(root, ".tmp/");
+    let atomic_write_dir = join_dir(root, ATOMIC_WRITE_DIR);
     clean_dir(&atomic_write_dir).await?;
 
+    // Compatible code. Remove this after a major release.
+    let old_atomic_temp_dir = join_dir(root, OLD_ATOMIC_WRITE_DIR);
+    clean_dir(&old_atomic_temp_dir).await?;
+
     let builder = Fs::default().root(root).atomic_write_dir(&atomic_write_dir);
     let store = ObjectStore::new(builder).context(OpenDalSnafu)?.finish();
 

src/mito2/src/cache/file_cache.rs

@@ -14,6 +14,7 @@
 
 //! A cache for files.
 
+use std::fmt;
 use std::ops::Range;
 use std::sync::Arc;
 use std::time::{Duration, Instant};
@@ -339,6 +340,18 @@ impl IndexKey {
     }
 }
 
+impl fmt::Display for IndexKey {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(
+            f,
+            "{}.{}.{}",
+            self.region_id.as_u64(),
+            self.file_id,
+            self.file_type.as_str()
+        )
+    }
+}
+
 /// Type of the file.
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub enum FileType {
@@ -380,15 +393,7 @@ pub(crate) struct IndexValue {
 ///
 /// The file name format is `{region_id}.{file_id}.{file_type}`
 fn cache_file_path(cache_file_dir: &str, key: IndexKey) -> String {
-    join_path(
+    join_path(cache_file_dir, &key.to_string())
-        cache_file_dir,
-        &format!(
-            "{}.{}.{}",
-            key.region_id.as_u64(),
-            key.file_id,
-            key.file_type.as_str()
-        ),
-    )
 }
 
 /// Parse index key from the file name.

src/mito2/src/cache/write_cache.rs

@@ -26,7 +26,7 @@ use store_api::storage::RegionId;
 
 use crate::access_layer::{
     new_fs_cache_store, FilePathProvider, RegionFilePathFactory, SstInfoArray, SstWriteRequest,
-    WriteCachePathProvider,
+    TempFileCleaner, WriteCachePathProvider,
 };
 use crate::cache::file_cache::{FileCache, FileCacheRef, FileType, IndexKey, IndexValue};
 use crate::error::{self, Result};
@@ -122,7 +122,7 @@ impl WriteCache {
             row_group_size: write_opts.row_group_size,
             puffin_manager: self
                 .puffin_manager_factory
-                .build(store, path_provider.clone()),
+                .build(store.clone(), path_provider.clone()),
             intermediate_manager: self.intermediate_manager.clone(),
             index_options: write_request.index_options,
             inverted_index_config: write_request.inverted_index_config,
@@ -130,14 +130,16 @@ impl WriteCache {
             bloom_filter_index_config: write_request.bloom_filter_index_config,
         };
 
+        let cleaner = TempFileCleaner::new(region_id, store.clone());
         // Write to FileCache.
         let mut writer = ParquetWriter::new_with_object_store(
-            self.file_cache.local_store(),
+            store.clone(),
             write_request.metadata,
             indexer,
-            path_provider,
+            path_provider.clone(),
         )
-        .await;
+        .await
+        .with_file_cleaner(cleaner);
 
         let sst_info = writer
             .write_all(write_request.source, write_request.max_sequence, write_opts)
@@ -201,6 +203,26 @@ impl WriteCache {
         remote_path: &str,
         remote_store: &ObjectStore,
         file_size: u64,
+    ) -> Result<()> {
+        if let Err(e) = self
+            .download_without_cleaning(index_key, remote_path, remote_store, file_size)
+            .await
+        {
+            let filename = index_key.to_string();
+            TempFileCleaner::clean_atomic_dir_files(&self.file_cache.local_store(), &[&filename])
+                .await;
+
+            return Err(e);
+        }
+        Ok(())
+    }
+
+    async fn download_without_cleaning(
+        &self,
+        index_key: IndexKey,
+        remote_path: &str,
+        remote_store: &ObjectStore,
+        file_size: u64,
     ) -> Result<()> {
         const DOWNLOAD_READER_CONCURRENCY: usize = 8;
         const DOWNLOAD_READER_CHUNK_SIZE: ReadableSize = ReadableSize::mb(8);
@@ -410,9 +432,11 @@ mod tests {
     use common_test_util::temp_dir::create_temp_dir;
 
     use super::*;
-    use crate::access_layer::OperationType;
+    use crate::access_layer::{OperationType, ATOMIC_WRITE_DIR};
     use crate::cache::test_util::new_fs_store;
     use crate::cache::{CacheManager, CacheStrategy};
+    use crate::error::InvalidBatchSnafu;
+    use crate::read::Source;
     use crate::region::options::IndexOptions;
     use crate::sst::parquet::reader::ParquetReaderBuilder;
     use crate::test_util::sst_util::{
@@ -578,4 +602,82 @@ mod tests {
         // Check parquet metadata
         assert_parquet_metadata_eq(write_parquet_metadata, reader.parquet_metadata());
     }
+
+    #[tokio::test]
+    async fn test_write_cache_clean_tmp_files() {
+        common_telemetry::init_default_ut_logging();
+        let mut env = TestEnv::new();
+        let data_home = env.data_home().display().to_string();
+        let mock_store = env.init_object_store_manager();
+
+        let write_cache_dir = create_temp_dir("");
+        let write_cache_path = write_cache_dir.path().to_str().unwrap();
+        let write_cache = env
+            .create_write_cache_from_path(write_cache_path, ReadableSize::mb(10))
+            .await;
+
+        // Create a cache manager using only write cache
+        let cache_manager = Arc::new(
+            CacheManager::builder()
+                .write_cache(Some(write_cache.clone()))
+                .build(),
+        );
+
+        // Create source
+        let metadata = Arc::new(sst_region_metadata());
+
+        // Creates a source that can return an error to abort the writer.
+        let source = Source::Iter(Box::new(
+            [
+                Ok(new_batch_by_range(&["a", "d"], 0, 60)),
+                InvalidBatchSnafu {
+                    reason: "Abort the writer",
+                }
+                .fail(),
+            ]
+            .into_iter(),
+        ));
+
+        // Write to local cache and upload sst to mock remote store
+        let write_request = SstWriteRequest {
+            op_type: OperationType::Flush,
+            metadata,
+            source,
+            storage: None,
+            max_sequence: None,
+            cache_manager: cache_manager.clone(),
+            index_options: IndexOptions::default(),
+            inverted_index_config: Default::default(),
+            fulltext_index_config: Default::default(),
+            bloom_filter_index_config: Default::default(),
+        };
+        let write_opts = WriteOptions {
+            row_group_size: 512,
+            ..Default::default()
+        };
+        let upload_request = SstUploadRequest {
+            dest_path_provider: RegionFilePathFactory::new(data_home.clone()),
+            remote_store: mock_store.clone(),
+        };
+
+        write_cache
+            .write_and_upload_sst(write_request, upload_request, &write_opts)
+            .await
+            .unwrap_err();
+        let atomic_write_dir = write_cache_dir.path().join(ATOMIC_WRITE_DIR);
+        let mut entries = tokio::fs::read_dir(&atomic_write_dir).await.unwrap();
+        let mut has_files = false;
+        while let Some(entry) = entries.next_entry().await.unwrap() {
+            if entry.file_type().await.unwrap().is_dir() {
+                continue;
+            }
+            has_files = true;
+            common_telemetry::warn!(
+                "Found remaining temporary file in atomic dir: {}",
+                entry.path().display()
+            );
+        }
+
+        assert!(!has_files);
+    }
 }

src/mito2/src/memtable/partition_tree.rs

@@ -302,7 +302,10 @@ impl PartitionTreeMemtable {
     fn update_stats(&self, metrics: &WriteMetrics) {
         // Only let the tracker tracks value bytes.
         self.alloc_tracker.on_allocation(metrics.value_bytes);
-        metrics.update_timestamp_range(&self.max_timestamp, &self.min_timestamp);
+        self.max_timestamp
+            .fetch_max(metrics.max_ts, Ordering::SeqCst);
+        self.min_timestamp
+            .fetch_min(metrics.min_ts, Ordering::SeqCst);
     }
 }
 

src/mito2/src/memtable/stats.rs

@@ -14,8 +14,6 @@
 
 //! Internal metrics of the memtable.
 
-use std::sync::atomic::{AtomicI64, Ordering};
-
 /// Metrics of writing memtables.
 pub(crate) struct WriteMetrics {
     /// Size allocated by keys.
@@ -28,51 +26,6 @@ pub(crate) struct WriteMetrics {
     pub(crate) max_ts: i64,
 }
 
-impl WriteMetrics {
-    /// Update the min/max timestamp range according to current write metric.
-    pub(crate) fn update_timestamp_range(&self, prev_max_ts: &AtomicI64, prev_min_ts: &AtomicI64) {
-        loop {
-            let current_min = prev_min_ts.load(Ordering::Relaxed);
-            if self.min_ts >= current_min {
-                break;
-            }
-
-            let Err(updated) = prev_min_ts.compare_exchange(
-                current_min,
-                self.min_ts,
-                Ordering::Relaxed,
-                Ordering::Relaxed,
-            ) else {
-                break;
-            };
-
-            if updated == self.min_ts {
-                break;
-            }
-        }
-
-        loop {
-            let current_max = prev_max_ts.load(Ordering::Relaxed);
-            if self.max_ts <= current_max {
-                break;
-            }
-
-            let Err(updated) = prev_max_ts.compare_exchange(
-                current_max,
-                self.max_ts,
-                Ordering::Relaxed,
-                Ordering::Relaxed,
-            ) else {
-                break;
-            };
-
-            if updated == self.max_ts {
-                break;
-            }
-        }
-    }
-}
-
 impl Default for WriteMetrics {
     fn default() -> Self {
         Self {

src/mito2/src/memtable/time_series.rs

@@ -57,7 +57,7 @@ use crate::region::options::MergeMode;
 use crate::row_converter::{DensePrimaryKeyCodec, PrimaryKeyCodecExt};
 
 /// Initial vector builder capacity.
-const INITIAL_BUILDER_CAPACITY: usize = 16;
+const INITIAL_BUILDER_CAPACITY: usize = 4;
 
 /// Vector builder capacity.
 const BUILDER_CAPACITY: usize = 512;
@@ -147,7 +147,8 @@ impl TimeSeriesMemtable {
     fn update_stats(&self, stats: WriteMetrics) {
         self.alloc_tracker
             .on_allocation(stats.key_bytes + stats.value_bytes);
-        stats.update_timestamp_range(&self.max_timestamp, &self.min_timestamp);
+        self.max_timestamp.fetch_max(stats.max_ts, Ordering::SeqCst);
+        self.min_timestamp.fetch_min(stats.min_ts, Ordering::SeqCst);
     }
 
     fn write_key_value(&self, kv: KeyValue, stats: &mut WriteMetrics) -> Result<()> {
@@ -644,15 +645,19 @@ struct Series {
 }
 
 impl Series {
-    fn new(region_metadata: &RegionMetadataRef) -> Self {
+    pub(crate) fn with_capacity(region_metadata: &RegionMetadataRef, builder_cap: usize) -> Self {
         Self {
             pk_cache: None,
-            active: ValueBuilder::new(region_metadata, INITIAL_BUILDER_CAPACITY),
+            active: ValueBuilder::new(region_metadata, builder_cap),
             frozen: vec![],
             region_metadata: region_metadata.clone(),
         }
     }
 
+    pub(crate) fn new(region_metadata: &RegionMetadataRef) -> Self {
+        Self::with_capacity(region_metadata, INITIAL_BUILDER_CAPACITY)
+    }
+
     /// Pushes a row of values into Series. Return the size of values.
     fn push<'a>(
         &mut self,

src/mito2/src/read/scan_region.rs

@@ -322,13 +322,10 @@ impl ScanRegion {
         let memtables: Vec<_> = memtables
             .into_iter()
             .filter(|mem| {
-                if mem.is_empty() {
+                // check if memtable is empty by reading stats.
+                let Some((start, end)) = mem.stats().time_range() else {
                     return false;
-                }
+                };
-                let stats = mem.stats();
-                // Safety: the memtable is not empty.
-                let (start, end) = stats.time_range().unwrap();
-
                 // The time range of the memtable is inclusive.
                 let memtable_range = TimestampRange::new_inclusive(Some(start), Some(end));
                 memtable_range.intersects(&time_range)

src/mito2/src/sst/parquet/format.rs

@@ -134,6 +134,7 @@ impl WriteFormat {
 
 /// Helper for reading the SST format.
 pub struct ReadFormat {
+    /// The metadata stored in the SST.
     metadata: RegionMetadataRef,
     /// SST file schema.
     arrow_schema: SchemaRef,
@@ -305,17 +306,23 @@ impl ReadFormat {
         &self,
         row_groups: &[impl Borrow<RowGroupMetaData>],
         column_id: ColumnId,
-    ) -> Option<ArrayRef> {
+    ) -> StatValues {
-        let column = self.metadata.column_by_id(column_id)?;
+        let Some(column) = self.metadata.column_by_id(column_id) else {
+            // No such column in the SST.
+            return StatValues::NoColumn;
+        };
         match column.semantic_type {
             SemanticType::Tag => self.tag_values(row_groups, column, true),
             SemanticType::Field => {
-                let index = self.field_id_to_index.get(&column_id)?;
+                // Safety: `field_id_to_index` is initialized by the semantic type.
-                Self::column_values(row_groups, column, *index, true)
+                let index = self.field_id_to_index.get(&column_id).unwrap();
+                let stats = Self::column_values(row_groups, column, *index, true);
+                StatValues::from_stats_opt(stats)
             }
             SemanticType::Timestamp => {
                 let index = self.time_index_position();
-                Self::column_values(row_groups, column, index, true)
+                let stats = Self::column_values(row_groups, column, index, true);
+                StatValues::from_stats_opt(stats)
             }
         }
     }
@@ -325,17 +332,23 @@ impl ReadFormat {
         &self,
         row_groups: &[impl Borrow<RowGroupMetaData>],
         column_id: ColumnId,
-    ) -> Option<ArrayRef> {
+    ) -> StatValues {
-        let column = self.metadata.column_by_id(column_id)?;
+        let Some(column) = self.metadata.column_by_id(column_id) else {
+            // No such column in the SST.
+            return StatValues::NoColumn;
+        };
         match column.semantic_type {
             SemanticType::Tag => self.tag_values(row_groups, column, false),
             SemanticType::Field => {
-                let index = self.field_id_to_index.get(&column_id)?;
+                // Safety: `field_id_to_index` is initialized by the semantic type.
-                Self::column_values(row_groups, column, *index, false)
+                let index = self.field_id_to_index.get(&column_id).unwrap();
+                let stats = Self::column_values(row_groups, column, *index, false);
+                StatValues::from_stats_opt(stats)
             }
             SemanticType::Timestamp => {
                 let index = self.time_index_position();
-                Self::column_values(row_groups, column, index, false)
+                let stats = Self::column_values(row_groups, column, index, false);
+                StatValues::from_stats_opt(stats)
             }
         }
     }
@@ -345,17 +358,23 @@ impl ReadFormat {
         &self,
         row_groups: &[impl Borrow<RowGroupMetaData>],
         column_id: ColumnId,
-    ) -> Option<ArrayRef> {
+    ) -> StatValues {
-        let column = self.metadata.column_by_id(column_id)?;
+        let Some(column) = self.metadata.column_by_id(column_id) else {
+            // No such column in the SST.
+            return StatValues::NoColumn;
+        };
         match column.semantic_type {
-            SemanticType::Tag => None,
+            SemanticType::Tag => StatValues::NoStats,
             SemanticType::Field => {
-                let index = self.field_id_to_index.get(&column_id)?;
+                // Safety: `field_id_to_index` is initialized by the semantic type.
-                Self::column_null_counts(row_groups, *index)
+                let index = self.field_id_to_index.get(&column_id).unwrap();
+                let stats = Self::column_null_counts(row_groups, *index);
+                StatValues::from_stats_opt(stats)
             }
             SemanticType::Timestamp => {
                 let index = self.time_index_position();
-                Self::column_null_counts(row_groups, index)
+                let stats = Self::column_null_counts(row_groups, index);
+                StatValues::from_stats_opt(stats)
             }
         }
     }
@@ -390,8 +409,7 @@ impl ReadFormat {
         row_groups: &[impl Borrow<RowGroupMetaData>],
         column: &ColumnMetadata,
         is_min: bool,
-    ) -> Option<ArrayRef> {
+    ) -> StatValues {
-        let primary_key_encoding = self.metadata.primary_key_encoding;
         let is_first_tag = self
             .metadata
             .primary_key
@@ -400,9 +418,28 @@ impl ReadFormat {
             .unwrap_or(false);
         if !is_first_tag {
             // Only the min-max of the first tag is available in the primary key.
-            return None;
+            return StatValues::NoStats;
         }
 
+        StatValues::from_stats_opt(self.first_tag_values(row_groups, column, is_min))
+    }
+
+    /// Returns min/max values of the first tag.
+    /// Returns None if the tag does not have statistics.
+    fn first_tag_values(
+        &self,
+        row_groups: &[impl Borrow<RowGroupMetaData>],
+        column: &ColumnMetadata,
+        is_min: bool,
+    ) -> Option<ArrayRef> {
+        debug_assert!(self
+            .metadata
+            .primary_key
+            .first()
+            .map(|id| *id == column.column_id)
+            .unwrap_or(false));
+
+        let primary_key_encoding = self.metadata.primary_key_encoding;
         let converter = build_primary_key_codec_with_fields(
             primary_key_encoding,
             [(
@@ -452,6 +489,7 @@ impl ReadFormat {
     }
 
     /// Returns min/max values of specific non-tag columns.
+    /// Returns None if the column does not have statistics.
     fn column_values(
         row_groups: &[impl Borrow<RowGroupMetaData>],
         column: &ColumnMetadata,
@@ -544,6 +582,29 @@ impl ReadFormat {
     }
 }
 
+/// Values of column statistics of the SST.
+///
+/// It also distinguishes the case that a column is not found and
+/// the column exists but has no statistics.
+pub enum StatValues {
+    /// Values of each row group.
+    Values(ArrayRef),
+    /// No such column.
+    NoColumn,
+    /// Column exists but has no statistics.
+    NoStats,
+}
+
+impl StatValues {
+    /// Creates a new `StatValues` instance from optional statistics.
+    pub fn from_stats_opt(stats: Option<ArrayRef>) -> Self {
+        match stats {
+            Some(stats) => StatValues::Values(stats),
+            None => StatValues::NoStats,
+        }
+    }
+}
+
 #[cfg(test)]
 impl ReadFormat {
     /// Creates a helper with existing `metadata` and all columns.

src/mito2/src/sst/parquet/stats.rs

@@ -25,7 +25,7 @@ use parquet::file::metadata::RowGroupMetaData;
 use store_api::metadata::RegionMetadataRef;
 use store_api::storage::ColumnId;
 
-use crate::sst::parquet::format::ReadFormat;
+use crate::sst::parquet::format::{ReadFormat, StatValues};
 
 /// Statistics for pruning row groups.
 pub(crate) struct RowGroupPruningStats<'a, T> {
@@ -100,16 +100,18 @@ impl<T: Borrow<RowGroupMetaData>> PruningStatistics for RowGroupPruningStats<'_,
     fn min_values(&self, column: &Column) -> Option<ArrayRef> {
         let column_id = self.column_id_to_prune(&column.name)?;
         match self.read_format.min_values(self.row_groups, column_id) {
-            Some(values) => Some(values),
+            StatValues::Values(values) => Some(values),
-            None => self.compat_default_value(&column.name),
+            StatValues::NoColumn => self.compat_default_value(&column.name),
+            StatValues::NoStats => None,
         }
     }
 
     fn max_values(&self, column: &Column) -> Option<ArrayRef> {
         let column_id = self.column_id_to_prune(&column.name)?;
         match self.read_format.max_values(self.row_groups, column_id) {
-            Some(values) => Some(values),
+            StatValues::Values(values) => Some(values),
-            None => self.compat_default_value(&column.name),
+            StatValues::NoColumn => self.compat_default_value(&column.name),
+            StatValues::NoStats => None,
         }
     }
 
@@ -118,10 +120,12 @@ impl<T: Borrow<RowGroupMetaData>> PruningStatistics for RowGroupPruningStats<'_,
     }
 
     fn null_counts(&self, column: &Column) -> Option<ArrayRef> {
-        let Some(column_id) = self.column_id_to_prune(&column.name) else {
+        let column_id = self.column_id_to_prune(&column.name)?;
-            return self.compat_null_count(&column.name);
+        match self.read_format.null_counts(self.row_groups, column_id) {
-        };
+            StatValues::Values(values) => Some(values),
-        self.read_format.null_counts(self.row_groups, column_id)
+            StatValues::NoColumn => self.compat_null_count(&column.name),
+            StatValues::NoStats => None,
+        }
     }
 
     fn row_counts(&self, _column: &Column) -> Option<ArrayRef> {

src/mito2/src/sst/parquet/writer.rs

@@ -36,7 +36,7 @@ use store_api::storage::SequenceNumber;
 use tokio::io::AsyncWrite;
 use tokio_util::compat::{Compat, FuturesAsyncWriteCompatExt};
 
-use crate::access_layer::{FilePathProvider, SstInfoArray};
+use crate::access_layer::{FilePathProvider, SstInfoArray, TempFileCleaner};
 use crate::error::{InvalidMetadataSnafu, OpenDalSnafu, Result, WriteParquetSnafu};
 use crate::read::{Batch, Source};
 use crate::sst::file::FileId;
@@ -61,6 +61,8 @@ pub struct ParquetWriter<F: WriterFactory, I: IndexerBuilder, P: FilePathProvide
     /// Current active indexer.
     current_indexer: Option<Indexer>,
     bytes_written: Arc<AtomicUsize>,
+    /// Cleaner to remove temp files on failure.
+    file_cleaner: Option<TempFileCleaner>,
 }
 
 pub trait WriterFactory {
@@ -105,6 +107,11 @@ where
         )
         .await
     }
+
+    pub(crate) fn with_file_cleaner(mut self, cleaner: TempFileCleaner) -> Self {
+        self.file_cleaner = Some(cleaner);
+        self
+    }
 }
 
 impl<F, I, P> ParquetWriter<F, I, P>
@@ -132,6 +139,7 @@ where
             indexer_builder,
             current_indexer: Some(indexer),
             bytes_written: Arc::new(AtomicUsize::new(0)),
+            file_cleaner: None,
         }
     }
 
@@ -152,6 +160,25 @@ where
     ///
     /// Returns the [SstInfo] if the SST is written.
     pub async fn write_all(
+        &mut self,
+        source: Source,
+        override_sequence: Option<SequenceNumber>, // override the `sequence` field from `Source`
+        opts: &WriteOptions,
+    ) -> Result<SstInfoArray> {
+        let res = self
+            .write_all_without_cleaning(source, override_sequence, opts)
+            .await;
+        if res.is_err() {
+            // Clean tmp files explicitly on failure.
+            let file_id = self.current_file;
+            if let Some(cleaner) = &self.file_cleaner {
+                cleaner.clean_by_file_id(file_id).await;
+            }
+        }
+        res
+    }
+
+    async fn write_all_without_cleaning(
         &mut self,
         mut source: Source,
         override_sequence: Option<SequenceNumber>, // override the `sequence` field from `Source`

src/mito2/src/test_util.rs

@@ -145,6 +145,12 @@ pub(crate) async fn prepare_test_for_kafka_log_store(factory: &LogStoreFactory)
 }
 
 pub(crate) async fn append_noop_record(client: &Client, topic: &str) {
+    let controller_client = client.controller_client().unwrap();
+    controller_client
+        .create_topic(topic, 1, 1, 5000)
+        .await
+        .unwrap();
+
     let partition_client = client
         .partition_client(topic, 0, UnknownTopicHandling::Retry)
         .await
@@ -659,6 +665,27 @@ impl TestEnv {
         Arc::new(write_cache)
     }
 
+    /// Creates a write cache from a path.
+    pub async fn create_write_cache_from_path(
+        &self,
+        path: &str,
+        capacity: ReadableSize,
+    ) -> WriteCacheRef {
+        let index_aux_path = self.data_home.path().join("index_aux");
+        let puffin_mgr = PuffinManagerFactory::new(&index_aux_path, 4096, None, None)
+            .await
+            .unwrap();
+        let intm_mgr = IntermediateManager::init_fs(index_aux_path.to_str().unwrap())
+            .await
+            .unwrap();
+
+        let write_cache = WriteCache::new_fs(path, capacity, None, puffin_mgr, intm_mgr)
+            .await
+            .unwrap();
+
+        Arc::new(write_cache)
+    }
+
     pub fn get_schema_metadata_manager(&self) -> SchemaMetadataManagerRef {
         self.schema_metadata_manager.clone()
     }

src/operator/Cargo.toml

@@ -63,5 +63,6 @@ tokio-util.workspace = true
 tonic.workspace = true
 
 [dev-dependencies]
+common-meta = { workspace = true, features = ["testing"] }
 common-test-util.workspace = true
 path-slash = "0.2"

src/operator/src/insert.rs

@@ -147,7 +147,7 @@ impl Inserter {
         statement_executor: &StatementExecutor,
     ) -> Result<Output> {
         let row_inserts = ColumnToRow::convert(requests)?;
-        self.handle_row_inserts(row_inserts, ctx, statement_executor)
+        self.handle_row_inserts(row_inserts, ctx, statement_executor, false, false)
             .await
     }
 
@@ -157,6 +157,8 @@ impl Inserter {
         mut requests: RowInsertRequests,
         ctx: QueryContextRef,
         statement_executor: &StatementExecutor,
+        accommodate_existing_schema: bool,
+        is_single_value: bool,
     ) -> Result<Output> {
         preprocess_row_insert_requests(&mut requests.inserts)?;
         self.handle_row_inserts_with_create_type(
@@ -164,6 +166,8 @@ impl Inserter {
             ctx,
             statement_executor,
             AutoCreateTableType::Physical,
+            accommodate_existing_schema,
+            is_single_value,
         )
         .await
     }
@@ -180,6 +184,8 @@ impl Inserter {
             ctx,
             statement_executor,
             AutoCreateTableType::Log,
+            false,
+            false,
         )
         .await
     }
@@ -195,6 +201,8 @@ impl Inserter {
             ctx,
             statement_executor,
             AutoCreateTableType::Trace,
+            false,
+            false,
         )
         .await
     }
@@ -205,12 +213,16 @@ impl Inserter {
         requests: RowInsertRequests,
         ctx: QueryContextRef,
         statement_executor: &StatementExecutor,
+        accommodate_existing_schema: bool,
+        is_single_value: bool,
     ) -> Result<Output> {
         self.handle_row_inserts_with_create_type(
             requests,
             ctx,
             statement_executor,
             AutoCreateTableType::LastNonNull,
+            accommodate_existing_schema,
+            is_single_value,
         )
         .await
     }
@@ -222,6 +234,8 @@ impl Inserter {
         ctx: QueryContextRef,
         statement_executor: &StatementExecutor,
         create_type: AutoCreateTableType,
+        accommodate_existing_schema: bool,
+        is_single_value: bool,
     ) -> Result<Output> {
         // remove empty requests
         requests.inserts.retain(|req| {
@@ -236,7 +250,14 @@ impl Inserter {
             instant_table_ids,
             table_infos,
         } = self
-            .create_or_alter_tables_on_demand(&requests, &ctx, create_type, statement_executor)
+            .create_or_alter_tables_on_demand(
+                &mut requests,
+                &ctx,
+                create_type,
+                statement_executor,
+                accommodate_existing_schema,
+                is_single_value,
+            )
             .await?;
 
         let name_to_info = table_infos
@@ -281,10 +302,12 @@ impl Inserter {
             table_infos,
         } = self
             .create_or_alter_tables_on_demand(
-                &requests,
+                &mut requests,
                 &ctx,
                 AutoCreateTableType::Logical(physical_table.to_string()),
                 statement_executor,
+                true,
+                true,
             )
             .await?;
         let name_to_info = table_infos
@@ -448,12 +471,20 @@ impl Inserter {
     ///
     /// Returns a mapping from table name to table id, where table name is the table name involved in the requests.
     /// This mapping is used in the conversion of RowToRegion.
+    ///
+    /// `accommodate_existing_schema` is used to determine if the existing schema should override the new schema.
+    /// It only works for TIME_INDEX and single VALUE columns. This is for the case where the user creates a table with
+    /// custom schema, and then inserts data with endpoints that have default schema setting, like prometheus
+    /// remote write. This will modify the `RowInsertRequests` in place.
+    /// `is_single_value` indicates whether the default schema only contains single value column so we can accommodate it.
     async fn create_or_alter_tables_on_demand(
         &self,
-        requests: &RowInsertRequests,
+        requests: &mut RowInsertRequests,
         ctx: &QueryContextRef,
         auto_create_table_type: AutoCreateTableType,
         statement_executor: &StatementExecutor,
+        accommodate_existing_schema: bool,
+        is_single_value: bool,
     ) -> Result<CreateAlterTableResult> {
         let _timer = crate::metrics::CREATE_ALTER_ON_DEMAND
             .with_label_values(&[auto_create_table_type.as_str()])
@@ -504,7 +535,7 @@ impl Inserter {
         let mut alter_tables = vec![];
         let mut instant_table_ids = HashSet::new();
 
-        for req in &requests.inserts {
+        for req in &mut requests.inserts {
             match self.get_table(catalog, &schema, &req.table_name).await? {
                 Some(table) => {
                     let table_info = table.table_info();
@@ -512,9 +543,13 @@ impl Inserter {
                         instant_table_ids.insert(table_info.table_id());
                     }
                     table_infos.insert(table_info.table_id(), table.table_info());
-                    if let Some(alter_expr) =
+                    if let Some(alter_expr) = self.get_alter_table_expr_on_demand(
-                        self.get_alter_table_expr_on_demand(req, &table, ctx)?
+                        req,
-                    {
+                        &table,
+                        ctx,
+                        accommodate_existing_schema,
+                        is_single_value,
+                    )? {
                         alter_tables.push(alter_expr);
                     }
                 }
@@ -784,12 +819,19 @@ impl Inserter {
     }
 
     /// Returns an alter table expression if it finds new columns in the request.
-    /// It always adds columns if not exist.
+    /// When `accommodate_existing_schema` is false, it always adds columns if not exist.
+    /// When `accommodate_existing_schema` is true, it may modify the input `req` to
+    /// accommodate it with existing schema. See [`create_or_alter_tables_on_demand`](Self::create_or_alter_tables_on_demand)
+    /// for more details.
+    /// When `accommodate_existing_schema` is true and `is_single_value` is true, it also consider fields when modifying the
+    /// input `req`.
     fn get_alter_table_expr_on_demand(
         &self,
-        req: &RowInsertRequest,
+        req: &mut RowInsertRequest,
         table: &TableRef,
         ctx: &QueryContextRef,
+        accommodate_existing_schema: bool,
+        is_single_value: bool,
     ) -> Result<Option<AlterTableExpr>> {
         let catalog_name = ctx.current_catalog();
         let schema_name = ctx.current_schema();
@@ -798,10 +840,66 @@ impl Inserter {
         let request_schema = req.rows.as_ref().unwrap().schema.as_slice();
         let column_exprs = ColumnExpr::from_column_schemas(request_schema);
         let add_columns = expr_helper::extract_add_columns_expr(&table.schema(), column_exprs)?;
-        let Some(add_columns) = add_columns else {
+        let Some(mut add_columns) = add_columns else {
             return Ok(None);
         };
 
+        // If accommodate_existing_schema is true, update request schema for Timestamp/Field columns
+        if accommodate_existing_schema {
+            let table_schema = table.schema();
+            // Find timestamp column name
+            let ts_col_name = table_schema.timestamp_column().map(|c| c.name.clone());
+            // Find field column name if there is only one and `is_single_value` is true.
+            let mut field_col_name = None;
+            if is_single_value {
+                let mut multiple_field_cols = false;
+                table.field_columns().for_each(|col| {
+                    if field_col_name.is_none() {
+                        field_col_name = Some(col.name.clone());
+                    } else {
+                        multiple_field_cols = true;
+                    }
+                });
+                if multiple_field_cols {
+                    field_col_name = None;
+                }
+            }
+
+            // Update column name in request schema for Timestamp/Field columns
+            if let Some(rows) = req.rows.as_mut() {
+                for col in &mut rows.schema {
+                    match col.semantic_type {
+                        x if x == SemanticType::Timestamp as i32 => {
+                            if let Some(ref ts_name) = ts_col_name {
+                                if col.column_name != *ts_name {
+                                    col.column_name = ts_name.clone();
+                                }
+                            }
+                        }
+                        x if x == SemanticType::Field as i32 => {
+                            if let Some(ref field_name) = field_col_name {
+                                if col.column_name != *field_name {
+                                    col.column_name = field_name.clone();
+                                }
+                            }
+                        }
+                        _ => {}
+                    }
+                }
+            }
+
+            // Only keep columns that are tags or non-single field.
+            add_columns.add_columns.retain(|col| {
+                let def = col.column_def.as_ref().unwrap();
+                def.semantic_type == SemanticType::Tag as i32
+                    || (def.semantic_type == SemanticType::Field as i32 && field_col_name.is_none())
+            });
+
+            if add_columns.add_columns.is_empty() {
+                return Ok(None);
+            }
+        }
+
         Ok(Some(AlterTableExpr {
             catalog_name: catalog_name.to_string(),
             schema_name: schema_name.to_string(),
@@ -946,6 +1044,7 @@ impl FlowMirrorTask {
                 // already know this is not source table
                 Some(None) => continue,
                 _ => {
+                    // dedup peers
                     let peers = cache
                         .get(table_id)
                         .await
@@ -953,6 +1052,8 @@ impl FlowMirrorTask {
                         .unwrap_or_default()
                         .values()
                         .cloned()
+                        .collect::<HashSet<_>>()
+                        .into_iter()
                         .collect::<Vec<_>>();
 
                     if !peers.is_empty() {
@@ -1032,3 +1133,124 @@ impl FlowMirrorTask {
         Ok(())
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use std::sync::Arc;
+
+    use api::v1::{ColumnSchema as GrpcColumnSchema, RowInsertRequest, Rows, SemanticType, Value};
+    use common_catalog::consts::{DEFAULT_CATALOG_NAME, DEFAULT_SCHEMA_NAME};
+    use common_meta::cache::new_table_flownode_set_cache;
+    use common_meta::ddl::test_util::datanode_handler::NaiveDatanodeHandler;
+    use common_meta::test_util::MockDatanodeManager;
+    use datatypes::data_type::ConcreteDataType;
+    use datatypes::schema::ColumnSchema;
+    use moka::future::Cache;
+    use session::context::QueryContext;
+    use table::dist_table::DummyDataSource;
+    use table::metadata::{TableInfoBuilder, TableMetaBuilder, TableType};
+    use table::TableRef;
+
+    use super::*;
+    use crate::tests::{create_partition_rule_manager, prepare_mocked_backend};
+
+    fn make_table_ref_with_schema(ts_name: &str, field_name: &str) -> TableRef {
+        let schema = datatypes::schema::SchemaBuilder::try_from_columns(vec![
+            ColumnSchema::new(
+                ts_name,
+                ConcreteDataType::timestamp_millisecond_datatype(),
+                false,
+            )
+            .with_time_index(true),
+            ColumnSchema::new(field_name, ConcreteDataType::float64_datatype(), true),
+        ])
+        .unwrap()
+        .build()
+        .unwrap();
+        let meta = TableMetaBuilder::empty()
+            .schema(Arc::new(schema))
+            .primary_key_indices(vec![])
+            .value_indices(vec![1])
+            .engine("mito")
+            .next_column_id(0)
+            .options(Default::default())
+            .created_on(Default::default())
+            .region_numbers(vec![0])
+            .build()
+            .unwrap();
+        let info = Arc::new(
+            TableInfoBuilder::default()
+                .table_id(1)
+                .table_version(0)
+                .name("test_table")
+                .schema_name(DEFAULT_SCHEMA_NAME)
+                .catalog_name(DEFAULT_CATALOG_NAME)
+                .desc(None)
+                .table_type(TableType::Base)
+                .meta(meta)
+                .build()
+                .unwrap(),
+        );
+        Arc::new(table::Table::new(
+            info,
+            table::metadata::FilterPushDownType::Unsupported,
+            Arc::new(DummyDataSource),
+        ))
+    }
+
+    #[tokio::test]
+    async fn test_accommodate_existing_schema_logic() {
+        let ts_name = "my_ts";
+        let field_name = "my_field";
+        let table = make_table_ref_with_schema(ts_name, field_name);
+
+        // The request uses different names for timestamp and field columns
+        let mut req = RowInsertRequest {
+            table_name: "test_table".to_string(),
+            rows: Some(Rows {
+                schema: vec![
+                    GrpcColumnSchema {
+                        column_name: "ts_wrong".to_string(),
+                        datatype: api::v1::ColumnDataType::TimestampMillisecond as i32,
+                        semantic_type: SemanticType::Timestamp as i32,
+                        ..Default::default()
+                    },
+                    GrpcColumnSchema {
+                        column_name: "field_wrong".to_string(),
+                        datatype: api::v1::ColumnDataType::Float64 as i32,
+                        semantic_type: SemanticType::Field as i32,
+                        ..Default::default()
+                    },
+                ],
+                rows: vec![api::v1::Row {
+                    values: vec![Value::default(), Value::default()],
+                }],
+            }),
+        };
+        let ctx = Arc::new(QueryContext::with(
+            DEFAULT_CATALOG_NAME,
+            DEFAULT_SCHEMA_NAME,
+        ));
+
+        let kv_backend = prepare_mocked_backend().await;
+        let inserter = Inserter::new(
+            catalog::memory::MemoryCatalogManager::new(),
+            create_partition_rule_manager(kv_backend.clone()).await,
+            Arc::new(MockDatanodeManager::new(NaiveDatanodeHandler)),
+            Arc::new(new_table_flownode_set_cache(
+                String::new(),
+                Cache::new(100),
+                kv_backend.clone(),
+            )),
+        );
+        let alter_expr = inserter
+            .get_alter_table_expr_on_demand(&mut req, &table, &ctx, true, true)
+            .unwrap();
+        assert!(alter_expr.is_none());
+
+        // The request's schema should have updated names for timestamp and field columns
+        let req_schema = req.rows.as_ref().unwrap().schema.clone();
+        assert_eq!(req_schema[0].column_name, ts_name);
+        assert_eq!(req_schema[1].column_name, field_name);
+    }
+}

src/operator/src/lib.rs

@@ -14,6 +14,7 @@
 
 #![feature(assert_matches)]
 #![feature(if_let_guard)]
+#![feature(let_chains)]
 
 pub mod delete;
 pub mod error;

src/operator/src/req_convert/delete/table_to_region.rs

@@ -57,33 +57,13 @@ mod tests {
     use api::v1::value::ValueData;
     use api::v1::{ColumnDataType, ColumnSchema, Row, SemanticType, Value};
     use common_catalog::consts::{DEFAULT_CATALOG_NAME, DEFAULT_SCHEMA_NAME};
-    use common_meta::key::catalog_name::{CatalogManager, CatalogNameKey};
-    use common_meta::key::schema_name::{SchemaManager, SchemaNameKey};
-    use common_meta::kv_backend::memory::MemoryKvBackend;
-    use common_meta::kv_backend::KvBackendRef;
     use datatypes::vectors::{Int32Vector, VectorRef};
     use store_api::storage::RegionId;
 
     use super::*;
-    use crate::tests::{create_partition_rule_manager, new_test_table_info};
+    use crate::tests::{
-
+        create_partition_rule_manager, new_test_table_info, prepare_mocked_backend,
-    async fn prepare_mocked_backend() -> KvBackendRef {
+    };
-        let backend = Arc::new(MemoryKvBackend::default());
-
-        let catalog_manager = CatalogManager::new(backend.clone());
-        let schema_manager = SchemaManager::new(backend.clone());
-
-        catalog_manager
-            .create(CatalogNameKey::default(), false)
-            .await
-            .unwrap();
-        schema_manager
-            .create(SchemaNameKey::default(), None, false)
-            .await
-            .unwrap();
-
-        backend
-    }
 
     #[tokio::test]
     async fn test_delete_request_table_to_region() {

src/operator/src/req_convert/insert/table_to_region.rs

@@ -73,33 +73,13 @@ mod tests {
     use api::v1::value::ValueData;
     use api::v1::{ColumnDataType, ColumnSchema, Row, SemanticType, Value};
     use common_catalog::consts::{DEFAULT_CATALOG_NAME, DEFAULT_SCHEMA_NAME};
-    use common_meta::key::catalog_name::{CatalogManager, CatalogNameKey};
-    use common_meta::key::schema_name::{SchemaManager, SchemaNameKey};
-    use common_meta::kv_backend::memory::MemoryKvBackend;
-    use common_meta::kv_backend::KvBackendRef;
     use datatypes::vectors::{Int32Vector, VectorRef};
     use store_api::storage::RegionId;
 
     use super::*;
-    use crate::tests::{create_partition_rule_manager, new_test_table_info};
+    use crate::tests::{
-
+        create_partition_rule_manager, new_test_table_info, prepare_mocked_backend,
-    async fn prepare_mocked_backend() -> KvBackendRef {
+    };
-        let backend = Arc::new(MemoryKvBackend::default());
-
-        let catalog_manager = CatalogManager::new(backend.clone());
-        let schema_manager = SchemaManager::new(backend.clone());
-
-        catalog_manager
-            .create(CatalogNameKey::default(), false)
-            .await
-            .unwrap();
-        schema_manager
-            .create(SchemaNameKey::default(), None, false)
-            .await
-            .unwrap();
-
-        backend
-    }
 
     #[tokio::test]
     async fn test_insert_request_table_to_region() {

src/operator/src/statement/ddl.rs

@@ -37,7 +37,7 @@ use common_meta::rpc::ddl::{
 };
 use common_meta::rpc::router::{Partition, Partition as MetaPartition};
 use common_query::Output;
-use common_telemetry::{debug, info, tracing};
+use common_telemetry::{debug, info, tracing, warn};
 use common_time::Timezone;
 use datafusion_common::tree_node::TreeNodeVisitor;
 use datafusion_expr::LogicalPlan;
@@ -369,7 +369,7 @@ impl StatementExecutor {
         query_context: QueryContextRef,
     ) -> Result<SubmitDdlTaskResponse> {
         let flow_type = self
-            .determine_flow_type(&expr.sql, query_context.clone())
+            .determine_flow_type(&expr, query_context.clone())
             .await?;
         info!("determined flow={} type: {:#?}", expr.flow_name, flow_type);
 
@@ -398,9 +398,49 @@ impl StatementExecutor {
     /// Determine the flow type based on the SQL query
     ///
     /// If it contains aggregation or distinct, then it is a batch flow, otherwise it is a streaming flow
-    async fn determine_flow_type(&self, sql: &str, query_ctx: QueryContextRef) -> Result<FlowType> {
+    async fn determine_flow_type(
+        &self,
+        expr: &CreateFlowExpr,
+        query_ctx: QueryContextRef,
+    ) -> Result<FlowType> {
+        // first check if source table's ttl is instant, if it is, force streaming mode
+        for src_table_name in &expr.source_table_names {
+            let table = self
+                .catalog_manager()
+                .table(
+                    &src_table_name.catalog_name,
+                    &src_table_name.schema_name,
+                    &src_table_name.table_name,
+                    Some(&query_ctx),
+                )
+                .await
+                .map_err(BoxedError::new)
+                .context(ExternalSnafu)?
+                .with_context(|| TableNotFoundSnafu {
+                    table_name: format_full_table_name(
+                        &src_table_name.catalog_name,
+                        &src_table_name.schema_name,
+                        &src_table_name.table_name,
+                    ),
+                })?;
+
+            // instant source table can only be handled by streaming mode
+            if table.table_info().meta.options.ttl == Some(common_time::TimeToLive::Instant) {
+                warn!(
+                    "Source table `{}` for flow `{}`'s ttl=instant, fallback to streaming mode",
+                    format_full_table_name(
+                        &src_table_name.catalog_name,
+                        &src_table_name.schema_name,
+                        &src_table_name.table_name
+                    ),
+                    expr.flow_name
+                );
+                return Ok(FlowType::Streaming);
+            }
+        }
+
         let engine = &self.query_engine;
-        let stmt = QueryLanguageParser::parse_sql(sql, &query_ctx)
+        let stmt = QueryLanguageParser::parse_sql(&expr.sql, &query_ctx)
             .map_err(BoxedError::new)
             .context(ExternalSnafu)?;
         let plan = engine
@@ -803,8 +843,46 @@ impl StatementExecutor {
             }
         );
 
-        self.alter_logical_tables_procedure(alter_table_exprs, query_context)
+        // group by physical table id
-            .await?;
+        let mut groups: HashMap<TableId, Vec<AlterTableExpr>> = HashMap::new();
+        for expr in alter_table_exprs {
+            // Get table_id from catalog_manager
+            let catalog = if expr.catalog_name.is_empty() {
+                query_context.current_catalog()
+            } else {
+                &expr.catalog_name
+            };
+            let schema = if expr.schema_name.is_empty() {
+                query_context.current_schema()
+            } else {
+                expr.schema_name.to_string()
+            };
+            let table_name = &expr.table_name;
+            let table = self
+                .catalog_manager
+                .table(catalog, &schema, table_name, Some(&query_context))
+                .await
+                .context(CatalogSnafu)?
+                .with_context(|| TableNotFoundSnafu {
+                    table_name: format_full_table_name(catalog, &schema, table_name),
+                })?;
+            let table_id = table.table_info().ident.table_id;
+            let physical_table_id = self
+                .table_metadata_manager
+                .table_route_manager()
+                .get_physical_table_id(table_id)
+                .await
+                .context(TableMetadataManagerSnafu)?;
+            groups.entry(physical_table_id).or_default().push(expr);
+        }
+
+        // Submit procedure for each physical table
+        let mut handles = Vec::with_capacity(groups.len());
+        for (_physical_table_id, exprs) in groups {
+            let fut = self.alter_logical_tables_procedure(exprs, query_context.clone());
+            handles.push(fut);
+        }
+        let _results = futures::future::try_join_all(handles).await?;
 
         Ok(Output::new_with_affected_rows(0))
     }

src/operator/src/statement/set.rs

@@ -122,7 +122,11 @@ pub fn set_search_path(exprs: Vec<Expr>, ctx: QueryContextRef) -> Result<()> {
     match search_expr {
         Expr::Value(Value::SingleQuotedString(search_path))
         | Expr::Value(Value::DoubleQuotedString(search_path)) => {
-            ctx.set_current_schema(&search_path.clone());
+            ctx.set_current_schema(search_path);
+            Ok(())
+        }
+        Expr::Identifier(Ident { value, .. }) => {
+            ctx.set_current_schema(value);
             Ok(())
         }
         expr => NotSupportedSnafu {

src/operator/src/tests.rs

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+mod kv_backend;
 mod partition_manager;
 
+pub(crate) use kv_backend::prepare_mocked_backend;
 pub(crate) use partition_manager::{create_partition_rule_manager, new_test_table_info};

src/operator/src/tests/kv_backend.rs

@@ -0,0 +1,38 @@
+// Copyright 2023 Greptime Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use std::sync::Arc;
+
+use common_meta::key::catalog_name::{CatalogManager, CatalogNameKey};
+use common_meta::key::schema_name::{SchemaManager, SchemaNameKey};
+use common_meta::kv_backend::memory::MemoryKvBackend;
+use common_meta::kv_backend::KvBackendRef;
+
+pub async fn prepare_mocked_backend() -> KvBackendRef {
+    let backend = Arc::new(MemoryKvBackend::default());
+
+    let catalog_manager = CatalogManager::new(backend.clone());
+    let schema_manager = SchemaManager::new(backend.clone());
+
+    catalog_manager
+        .create(CatalogNameKey::default(), false)
+        .await
+        .unwrap();
+    schema_manager
+        .create(SchemaNameKey::default(), None, false)
+        .await
+        .unwrap();
+
+    backend
+}

src/pipeline/src/manager/table.rs

@@ -249,6 +249,8 @@ impl PipelineTable {
                 requests,
                 Self::query_ctx(&table_info),
                 &self.statement_executor,
+                false,
+                false,
             )
             .await
             .context(InsertPipelineSnafu)?;

src/promql/src/extension_plan/series_divide.rs

@@ -47,6 +47,11 @@ use crate::metrics::PROMQL_SERIES_COUNT;
 #[derive(Debug, PartialEq, Eq, Hash, PartialOrd)]
 pub struct SeriesDivide {
     tag_columns: Vec<String>,
+    /// `SeriesDivide` requires `time_index` column's name to generate ordering requirement
+    /// for input data. But this plan itself doesn't depend on the ordering of time index
+    /// column. This is for follow on plans like `RangeManipulate`. Because requiring ordering
+    /// here can avoid unnecessary sort in follow on plans.
+    time_index_column: String,
     input: LogicalPlan,
 }
 
@@ -84,14 +89,19 @@ impl UserDefinedLogicalNodeCore for SeriesDivide {
 
         Ok(Self {
             tag_columns: self.tag_columns.clone(),
+            time_index_column: self.time_index_column.clone(),
             input: inputs[0].clone(),
         })
     }
 }
 
 impl SeriesDivide {
-    pub fn new(tag_columns: Vec<String>, input: LogicalPlan) -> Self {
+    pub fn new(tag_columns: Vec<String>, time_index_column: String, input: LogicalPlan) -> Self {
-        Self { tag_columns, input }
+        Self {
+            tag_columns,
+            time_index_column,
+            input,
+        }
     }
 
     pub const fn name() -> &'static str {
@@ -101,6 +111,7 @@ impl SeriesDivide {
     pub fn to_execution_plan(&self, exec_input: Arc<dyn ExecutionPlan>) -> Arc<dyn ExecutionPlan> {
         Arc::new(SeriesDivideExec {
             tag_columns: self.tag_columns.clone(),
+            time_index_column: self.time_index_column.clone(),
             input: exec_input,
             metric: ExecutionPlanMetricsSet::new(),
         })
@@ -109,6 +120,7 @@ impl SeriesDivide {
     pub fn serialize(&self) -> Vec<u8> {
         pb::SeriesDivide {
             tag_columns: self.tag_columns.clone(),
+            time_index_column: self.time_index_column.clone(),
         }
         .encode_to_vec()
     }
@@ -121,6 +133,7 @@ impl SeriesDivide {
         });
         Ok(Self {
             tag_columns: pb_series_divide.tag_columns,
+            time_index_column: pb_series_divide.time_index_column,
             input: placeholder_plan,
         })
     }
@@ -129,6 +142,7 @@ impl SeriesDivide {
 #[derive(Debug)]
 pub struct SeriesDivideExec {
     tag_columns: Vec<String>,
+    time_index_column: String,
     input: Arc<dyn ExecutionPlan>,
     metric: ExecutionPlanMetricsSet,
 }
@@ -159,7 +173,7 @@ impl ExecutionPlan for SeriesDivideExec {
 
     fn required_input_ordering(&self) -> Vec<Option<LexRequirement>> {
         let input_schema = self.input.schema();
-        let exprs: Vec<PhysicalSortRequirement> = self
+        let mut exprs: Vec<PhysicalSortRequirement> = self
             .tag_columns
             .iter()
             .map(|tag| PhysicalSortRequirement {
@@ -171,11 +185,17 @@ impl ExecutionPlan for SeriesDivideExec {
                 }),
             })
             .collect();
-        if !exprs.is_empty() {
+
-            vec![Some(LexRequirement::new(exprs))]
+        exprs.push(PhysicalSortRequirement {
-        } else {
+            expr: Arc::new(
-            vec![None]
+                ColumnExpr::new_with_schema(&self.time_index_column, &input_schema).unwrap(),
-        }
+            ),
+            options: Some(SortOptions {
+                descending: false,
+                nulls_first: true,
+            }),
+        });
+        vec![Some(LexRequirement::new(exprs))]
     }
 
     fn maintains_input_order(&self) -> Vec<bool> {
@@ -193,6 +213,7 @@ impl ExecutionPlan for SeriesDivideExec {
         assert!(!children.is_empty());
         Ok(Arc::new(Self {
             tag_columns: self.tag_columns.clone(),
+            time_index_column: self.time_index_column.clone(),
             input: children[0].clone(),
             metric: self.metric.clone(),
         }))
@@ -468,6 +489,11 @@ mod test {
         let schema = Arc::new(Schema::new(vec![
             Field::new("host", DataType::Utf8, true),
             Field::new("path", DataType::Utf8, true),
+            Field::new(
+                "time_index",
+                DataType::Timestamp(datafusion::arrow::datatypes::TimeUnit::Millisecond, None),
+                false,
+            ),
         ]));
 
         let path_column_1 = Arc::new(StringArray::from(vec![
@@ -476,9 +502,17 @@ mod test {
         let host_column_1 = Arc::new(StringArray::from(vec![
             "000", "000", "001", "002", "002", "002", "002", "002", "003", "005", "005", "005",
         ])) as _;
+        let time_index_column_1 = Arc::new(
+            datafusion::arrow::array::TimestampMillisecondArray::from(vec![
+                1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000, 10000, 11000, 12000,
+            ]),
+        ) as _;
 
         let path_column_2 = Arc::new(StringArray::from(vec!["bla", "bla", "bla"])) as _;
         let host_column_2 = Arc::new(StringArray::from(vec!["005", "005", "005"])) as _;
+        let time_index_column_2 = Arc::new(
+            datafusion::arrow::array::TimestampMillisecondArray::from(vec![13000, 14000, 15000]),
+        ) as _;
 
         let path_column_3 = Arc::new(StringArray::from(vec![
             "bla", "🥺", "🥺", "🥺", "🥺", "🥺", "🫠", "🫠",
@@ -486,13 +520,26 @@ mod test {
         let host_column_3 = Arc::new(StringArray::from(vec![
             "005", "001", "001", "001", "001", "001", "001", "001",
         ])) as _;
+        let time_index_column_3 =
+            Arc::new(datafusion::arrow::array::TimestampMillisecondArray::from(
+                vec![16000, 17000, 18000, 19000, 20000, 21000, 22000, 23000],
+            )) as _;
 
-        let data_1 =
+        let data_1 = RecordBatch::try_new(
-            RecordBatch::try_new(schema.clone(), vec![path_column_1, host_column_1]).unwrap();
+            schema.clone(),
-        let data_2 =
+            vec![path_column_1, host_column_1, time_index_column_1],
-            RecordBatch::try_new(schema.clone(), vec![path_column_2, host_column_2]).unwrap();
+        )
-        let data_3 =
+        .unwrap();
-            RecordBatch::try_new(schema.clone(), vec![path_column_3, host_column_3]).unwrap();
+        let data_2 = RecordBatch::try_new(
+            schema.clone(),
+            vec![path_column_2, host_column_2, time_index_column_2],
+        )
+        .unwrap();
+        let data_3 = RecordBatch::try_new(
+            schema.clone(),
+            vec![path_column_3, host_column_3, time_index_column_3],
+        )
+        .unwrap();
 
         MemoryExec::try_new(&[vec![data_1, data_2, data_3]], schema, None).unwrap()
     }
@@ -502,6 +549,7 @@ mod test {
         let memory_exec = Arc::new(prepare_test_data());
         let divide_exec = Arc::new(SeriesDivideExec {
             tag_columns: vec!["host".to_string(), "path".to_string()],
+            time_index_column: "time_index".to_string(),
             input: memory_exec,
             metric: ExecutionPlanMetricsSet::new(),
         });
@@ -514,33 +562,33 @@ mod test {
             .to_string();
 
         let expected = String::from(
-            "+------+------+\
+            "+------+------+---------------------+\
-            \n| host | path |\
+            \n| host | path | time_index          |\
-            \n+------+------+\
+            \n+------+------+---------------------+\
-            \n| foo  | 000  |\
+            \n| foo  | 000  | 1970-01-01T00:00:01 |\
-            \n| foo  | 000  |\
+            \n| foo  | 000  | 1970-01-01T00:00:02 |\
-            \n| foo  | 001  |\
+            \n| foo  | 001  | 1970-01-01T00:00:03 |\
-            \n| bar  | 002  |\
+            \n| bar  | 002  | 1970-01-01T00:00:04 |\
-            \n| bar  | 002  |\
+            \n| bar  | 002  | 1970-01-01T00:00:05 |\
-            \n| bar  | 002  |\
+            \n| bar  | 002  | 1970-01-01T00:00:06 |\
-            \n| bar  | 002  |\
+            \n| bar  | 002  | 1970-01-01T00:00:07 |\
-            \n| bar  | 002  |\
+            \n| bar  | 002  | 1970-01-01T00:00:08 |\
-            \n| bar  | 003  |\
+            \n| bar  | 003  | 1970-01-01T00:00:09 |\
-            \n| bla  | 005  |\
+            \n| bla  | 005  | 1970-01-01T00:00:10 |\
-            \n| bla  | 005  |\
+            \n| bla  | 005  | 1970-01-01T00:00:11 |\
-            \n| bla  | 005  |\
+            \n| bla  | 005  | 1970-01-01T00:00:12 |\
-            \n| bla  | 005  |\
+            \n| bla  | 005  | 1970-01-01T00:00:13 |\
-            \n| bla  | 005  |\
+            \n| bla  | 005  | 1970-01-01T00:00:14 |\
-            \n| bla  | 005  |\
+            \n| bla  | 005  | 1970-01-01T00:00:15 |\
-            \n| bla  | 005  |\
+            \n| bla  | 005  | 1970-01-01T00:00:16 |\
-            \n| 🥺   | 001  |\
+            \n| 🥺   | 001  | 1970-01-01T00:00:17 |\
-            \n| 🥺   | 001  |\
+            \n| 🥺   | 001  | 1970-01-01T00:00:18 |\
-            \n| 🥺   | 001  |\
+            \n| 🥺   | 001  | 1970-01-01T00:00:19 |\
-            \n| 🥺   | 001  |\
+            \n| 🥺   | 001  | 1970-01-01T00:00:20 |\
-            \n| 🥺   | 001  |\
+            \n| 🥺   | 001  | 1970-01-01T00:00:21 |\
-            \n| 🫠   | 001  |\
+            \n| 🫠   | 001  | 1970-01-01T00:00:22 |\
-            \n| 🫠   | 001  |\
+            \n| 🫠   | 001  | 1970-01-01T00:00:23 |\
-            \n+------+------+",
+            \n+------+------+---------------------+",
         );
         assert_eq!(result_literal, expected);
     }
@@ -550,6 +598,7 @@ mod test {
         let memory_exec = Arc::new(prepare_test_data());
         let divide_exec = Arc::new(SeriesDivideExec {
             tag_columns: vec!["host".to_string(), "path".to_string()],
+            time_index_column: "time_index".to_string(),
             input: memory_exec,
             metric: ExecutionPlanMetricsSet::new(),
         });
@@ -559,69 +608,69 @@ mod test {
 
         let mut expectations = vec![
             String::from(
-                "+------+------+\
+                "+------+------+---------------------+\
-                \n| host | path |\
+                \n| host | path | time_index          |\
-                \n+------+------+\
+                \n+------+------+---------------------+\
-                \n| foo  | 000  |\
+                \n| foo  | 000  | 1970-01-01T00:00:01 |\
-                \n| foo  | 000  |\
+                \n| foo  | 000  | 1970-01-01T00:00:02 |\
-                \n+------+------+",
+                \n+------+------+---------------------+",
             ),
             String::from(
-                "+------+------+\
+                "+------+------+---------------------+\
-                \n| host | path |\
+                \n| host | path | time_index          |\
-                \n+------+------+\
+                \n+------+------+---------------------+\
-                \n| foo  | 001  |\
+                \n| foo  | 001  | 1970-01-01T00:00:03 |\
-                \n+------+------+",
+                \n+------+------+---------------------+",
             ),
             String::from(
-                "+------+------+\
+                "+------+------+---------------------+\
-                \n| host | path |\
+                \n| host | path | time_index          |\
-                \n+------+------+\
+                \n+------+------+---------------------+\
-                \n| bar  | 002  |\
+                \n| bar  | 002  | 1970-01-01T00:00:04 |\
-                \n| bar  | 002  |\
+                \n| bar  | 002  | 1970-01-01T00:00:05 |\
-                \n| bar  | 002  |\
+                \n| bar  | 002  | 1970-01-01T00:00:06 |\
-                \n| bar  | 002  |\
+                \n| bar  | 002  | 1970-01-01T00:00:07 |\
-                \n| bar  | 002  |\
+                \n| bar  | 002  | 1970-01-01T00:00:08 |\
-                \n+------+------+",
+                \n+------+------+---------------------+",
             ),
             String::from(
-                "+------+------+\
+                "+------+------+---------------------+\
-                \n| host | path |\
+                \n| host | path | time_index          |\
-                \n+------+------+\
+                \n+------+------+---------------------+\
-                \n| bar  | 003  |\
+                \n| bar  | 003  | 1970-01-01T00:00:09 |\
-                \n+------+------+",
+                \n+------+------+---------------------+",
             ),
             String::from(
-                "+------+------+\
+                "+------+------+---------------------+\
-                \n| host | path |\
+                \n| host | path | time_index          |\
-                \n+------+------+\
+                \n+------+------+---------------------+\
-                \n| bla  | 005  |\
+                \n| bla  | 005  | 1970-01-01T00:00:10 |\
-                \n| bla  | 005  |\
+                \n| bla  | 005  | 1970-01-01T00:00:11 |\
-                \n| bla  | 005  |\
+                \n| bla  | 005  | 1970-01-01T00:00:12 |\
-                \n| bla  | 005  |\
+                \n| bla  | 005  | 1970-01-01T00:00:13 |\
-                \n| bla  | 005  |\
+                \n| bla  | 005  | 1970-01-01T00:00:14 |\
-                \n| bla  | 005  |\
+                \n| bla  | 005  | 1970-01-01T00:00:15 |\
-                \n| bla  | 005  |\
+                \n| bla  | 005  | 1970-01-01T00:00:16 |\
-                \n+------+------+",
+                \n+------+------+---------------------+",
             ),
             String::from(
-                "+------+------+\
+                "+------+------+---------------------+\
-                \n| host | path |\
+                \n| host | path | time_index          |\
-                \n+------+------+\
+                \n+------+------+---------------------+\
-                \n| 🥺   | 001  |\
+                \n| 🥺   | 001  | 1970-01-01T00:00:17 |\
-                \n| 🥺   | 001  |\
+                \n| 🥺   | 001  | 1970-01-01T00:00:18 |\
-                \n| 🥺   | 001  |\
+                \n| 🥺   | 001  | 1970-01-01T00:00:19 |\
-                \n| 🥺   | 001  |\
+                \n| 🥺   | 001  | 1970-01-01T00:00:20 |\
-                \n| 🥺   | 001  |\
+                \n| 🥺   | 001  | 1970-01-01T00:00:21 |\
-                \n+------+------+",
+                \n+------+------+---------------------+",
             ),
             String::from(
-                "+------+------+\
+                "+------+------+---------------------+\
-                \n| host | path |\
+                \n| host | path | time_index          |\
-                \n+------+------+\
+                \n+------+------+---------------------+\
-                \n| 🫠   | 001  |\
+                \n| 🫠   | 001  | 1970-01-01T00:00:22 |\
-                \n| 🫠   | 001  |\
+                \n| 🫠   | 001  | 1970-01-01T00:00:23 |\
-                \n+------+------+",
+                \n+------+------+---------------------+",
             ),
         ];
         expectations.reverse();
@@ -642,6 +691,11 @@ mod test {
         let schema = Arc::new(Schema::new(vec![
             Field::new("host", DataType::Utf8, true),
             Field::new("path", DataType::Utf8, true),
+            Field::new(
+                "time_index",
+                DataType::Timestamp(datafusion::arrow::datatypes::TimeUnit::Millisecond, None),
+                false,
+            ),
         ]));
 
         // Create batches with three different combinations
@@ -654,6 +708,9 @@ mod test {
             vec![
                 Arc::new(StringArray::from(vec!["server1", "server1", "server1"])) as _,
                 Arc::new(StringArray::from(vec!["/var/log", "/var/log", "/var/log"])) as _,
+                Arc::new(datafusion::arrow::array::TimestampMillisecondArray::from(
+                    vec![1000, 2000, 3000],
+                )) as _,
             ],
         )
         .unwrap();
@@ -663,6 +720,9 @@ mod test {
             vec![
                 Arc::new(StringArray::from(vec!["server1", "server1"])) as _,
                 Arc::new(StringArray::from(vec!["/var/log", "/var/log"])) as _,
+                Arc::new(datafusion::arrow::array::TimestampMillisecondArray::from(
+                    vec![4000, 5000],
+                )) as _,
             ],
         )
         .unwrap();
@@ -677,6 +737,9 @@ mod test {
                     "/var/data",
                     "/var/data",
                 ])) as _,
+                Arc::new(datafusion::arrow::array::TimestampMillisecondArray::from(
+                    vec![6000, 7000, 8000],
+                )) as _,
             ],
         )
         .unwrap();
@@ -686,6 +749,9 @@ mod test {
             vec![
                 Arc::new(StringArray::from(vec!["server2"])) as _,
                 Arc::new(StringArray::from(vec!["/var/data"])) as _,
+                Arc::new(datafusion::arrow::array::TimestampMillisecondArray::from(
+                    vec![9000],
+                )) as _,
             ],
         )
         .unwrap();
@@ -696,6 +762,9 @@ mod test {
             vec![
                 Arc::new(StringArray::from(vec!["server3", "server3"])) as _,
                 Arc::new(StringArray::from(vec!["/opt/logs", "/opt/logs"])) as _,
+                Arc::new(datafusion::arrow::array::TimestampMillisecondArray::from(
+                    vec![10000, 11000],
+                )) as _,
             ],
         )
         .unwrap();
@@ -709,6 +778,9 @@ mod test {
                     "/opt/logs",
                     "/opt/logs",
                 ])) as _,
+                Arc::new(datafusion::arrow::array::TimestampMillisecondArray::from(
+                    vec![12000, 13000, 14000],
+                )) as _,
             ],
         )
         .unwrap();
@@ -726,6 +798,7 @@ mod test {
         // Create SeriesDivideExec
         let divide_exec = Arc::new(SeriesDivideExec {
             tag_columns: vec!["host".to_string(), "path".to_string()],
+            time_index_column: "time_index".to_string(),
             input: memory_exec,
             metric: ExecutionPlanMetricsSet::new(),
         });
@@ -760,10 +833,16 @@ mod test {
             .as_any()
             .downcast_ref::<StringArray>()
             .unwrap();
+        let time_index_array1 = result[0]
+            .column(2)
+            .as_any()
+            .downcast_ref::<datafusion::arrow::array::TimestampMillisecondArray>()
+            .unwrap();
 
         for i in 0..5 {
             assert_eq!(host_array1.value(i), "server1");
             assert_eq!(path_array1.value(i), "/var/log");
+            assert_eq!(time_index_array1.value(i), 1000 + (i as i64) * 1000);
         }
 
         // Verify values in second batch (server2, /var/data)
@@ -777,10 +856,16 @@ mod test {
             .as_any()
             .downcast_ref::<StringArray>()
             .unwrap();
+        let time_index_array2 = result[1]
+            .column(2)
+            .as_any()
+            .downcast_ref::<datafusion::arrow::array::TimestampMillisecondArray>()
+            .unwrap();
 
         for i in 0..4 {
             assert_eq!(host_array2.value(i), "server2");
             assert_eq!(path_array2.value(i), "/var/data");
+            assert_eq!(time_index_array2.value(i), 6000 + (i as i64) * 1000);
         }
 
         // Verify values in third batch (server3, /opt/logs)
@@ -794,10 +879,16 @@ mod test {
             .as_any()
             .downcast_ref::<StringArray>()
             .unwrap();
+        let time_index_array3 = result[2]
+            .column(2)
+            .as_any()
+            .downcast_ref::<datafusion::arrow::array::TimestampMillisecondArray>()
+            .unwrap();
 
         for i in 0..5 {
             assert_eq!(host_array3.value(i), "server3");
             assert_eq!(path_array3.value(i), "/opt/logs");
+            assert_eq!(time_index_array3.value(i), 10000 + (i as i64) * 1000);
         }
 
         // Also verify streaming behavior

src/query/src/promql/planner.rs

@@ -761,6 +761,8 @@ impl PromPlanner {
         } else {
             self.ctx.time_index_column = Some(SPECIAL_TIME_FUNCTION.to_string());
             self.ctx.reset_table_name_and_schema();
+            self.ctx.tag_columns = vec![];
+            self.ctx.field_columns = vec![DEFAULT_FIELD_COLUMN.to_string()];
             LogicalPlan::Extension(Extension {
                 node: Arc::new(
                     EmptyMetric::new(
@@ -1033,8 +1035,19 @@ impl PromPlanner {
             .context(DataFusionPlanningSnafu)?;
 
         // make divide plan
+        let time_index_column =
+            self.ctx
+                .time_index_column
+                .clone()
+                .with_context(|| TimeIndexNotFoundSnafu {
+                    table: table_ref.to_string(),
+                })?;
         let divide_plan = LogicalPlan::Extension(Extension {
-            node: Arc::new(SeriesDivide::new(self.ctx.tag_columns.clone(), sort_plan)),
+            node: Arc::new(SeriesDivide::new(
+                self.ctx.tag_columns.clone(),
+                time_index_column,
+                sort_plan,
+            )),
         });
 
         // make series_normalize plan
@@ -2828,6 +2841,7 @@ impl PromPlanner {
         let project_fields = non_field_columns_iter
             .chain(field_columns_iter)
             .collect::<Result<Vec<_>>>()?;
+
         LogicalPlanBuilder::from(input)
             .project(project_fields)
             .context(DataFusionPlanningSnafu)?
@@ -4219,7 +4233,7 @@ mod test {
         \n    PromInstantManipulate: range=[0..100000000], lookback=[1000], interval=[5000], time index=[timestamp] [tag_0:Utf8, tag_1:Utf8, tag_2:Utf8, timestamp:Timestamp(Millisecond, None), field_0:Float64;N, field_1:Float64;N, field_2:Float64;N]\
         \n      PromSeriesDivide: tags=[\"tag_0\", \"tag_1\", \"tag_2\"] [tag_0:Utf8, tag_1:Utf8, tag_2:Utf8, timestamp:Timestamp(Millisecond, None), field_0:Float64;N, field_1:Float64;N, field_2:Float64;N]\
         \n        Sort: prometheus_tsdb_head_series.tag_0 ASC NULLS FIRST, prometheus_tsdb_head_series.tag_1 ASC NULLS FIRST, prometheus_tsdb_head_series.tag_2 ASC NULLS FIRST, prometheus_tsdb_head_series.timestamp ASC NULLS FIRST [tag_0:Utf8, tag_1:Utf8, tag_2:Utf8, timestamp:Timestamp(Millisecond, None), field_0:Float64;N, field_1:Float64;N, field_2:Float64;N]\
-        \n          Filter: prometheus_tsdb_head_series.tag_1 ~ Utf8(\"^(10.0.160.237:8080|10.0.160.237:9090)$\") AND prometheus_tsdb_head_series.timestamp >= TimestampMillisecond(-1000, None) AND prometheus_tsdb_head_series.timestamp <= TimestampMillisecond(100001000, None) [tag_0:Utf8, tag_1:Utf8, tag_2:Utf8, timestamp:Timestamp(Millisecond, None), field_0:Float64;N, field_1:Float64;N, field_2:Float64;N]\
+        \n          Filter: prometheus_tsdb_head_series.tag_1 ~ Utf8(\"^(?:(10.0.160.237:8080|10.0.160.237:9090))$\") AND prometheus_tsdb_head_series.timestamp >= TimestampMillisecond(-1000, None) AND prometheus_tsdb_head_series.timestamp <= TimestampMillisecond(100001000, None) [tag_0:Utf8, tag_1:Utf8, tag_2:Utf8, timestamp:Timestamp(Millisecond, None), field_0:Float64;N, field_1:Float64;N, field_2:Float64;N]\
         \n            TableScan: prometheus_tsdb_head_series [tag_0:Utf8, tag_1:Utf8, tag_2:Utf8, timestamp:Timestamp(Millisecond, None), field_0:Float64;N, field_1:Float64;N, field_2:Float64;N]";
         assert_eq!(plan.display_indent_schema().to_string(), expected);
     }
@@ -4266,7 +4280,7 @@ mod test {
         \n            PromInstantManipulate: range=[0..100000000], lookback=[1000], interval=[5000], time index=[greptime_timestamp] [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
         \n              PromSeriesDivide: tags=[\"ip\"] [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
         \n                Sort: prometheus_tsdb_head_series.ip ASC NULLS FIRST, prometheus_tsdb_head_series.greptime_timestamp ASC NULLS FIRST [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
-        \n                  Filter: prometheus_tsdb_head_series.ip ~ Utf8(\"^(10.0.160.237:8080|10.0.160.237:9090)$\") AND prometheus_tsdb_head_series.greptime_timestamp >= TimestampMillisecond(-1000, None) AND prometheus_tsdb_head_series.greptime_timestamp <= TimestampMillisecond(100001000, None) [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
+        \n                  Filter: prometheus_tsdb_head_series.ip ~ Utf8(\"^(?:(10.0.160.237:8080|10.0.160.237:9090))$\") AND prometheus_tsdb_head_series.greptime_timestamp >= TimestampMillisecond(-1000, None) AND prometheus_tsdb_head_series.greptime_timestamp <= TimestampMillisecond(100001000, None) [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
         \n                    TableScan: prometheus_tsdb_head_series [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]";
 
         assert_eq!(plan.display_indent_schema().to_string(), expected);
@@ -4312,7 +4326,7 @@ mod test {
         \n        PromInstantManipulate: range=[0..100000000], lookback=[1000], interval=[5000], time index=[greptime_timestamp] [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
         \n          PromSeriesDivide: tags=[\"ip\"] [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
         \n            Sort: prometheus_tsdb_head_series.ip ASC NULLS FIRST, prometheus_tsdb_head_series.greptime_timestamp ASC NULLS FIRST [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
-        \n              Filter: prometheus_tsdb_head_series.ip ~ Utf8(\"^(10.0.160.237:8080|10.0.160.237:9090)$\") AND prometheus_tsdb_head_series.greptime_timestamp >= TimestampMillisecond(-1000, None) AND prometheus_tsdb_head_series.greptime_timestamp <= TimestampMillisecond(100001000, None) [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
+        \n              Filter: prometheus_tsdb_head_series.ip ~ Utf8(\"^(?:(10.0.160.237:8080|10.0.160.237:9090))$\") AND prometheus_tsdb_head_series.greptime_timestamp >= TimestampMillisecond(-1000, None) AND prometheus_tsdb_head_series.greptime_timestamp <= TimestampMillisecond(100001000, None) [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
         \n                TableScan: prometheus_tsdb_head_series [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]";
 
         assert_eq!(plan.display_indent_schema().to_string(), expected);
@@ -4358,7 +4372,7 @@ mod test {
         \n        PromInstantManipulate: range=[0..100000000], lookback=[1000], interval=[5000], time index=[greptime_timestamp] [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
         \n          PromSeriesDivide: tags=[\"ip\"] [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
         \n            Sort: prometheus_tsdb_head_series.ip ASC NULLS FIRST, prometheus_tsdb_head_series.greptime_timestamp ASC NULLS FIRST [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
-        \n              Filter: prometheus_tsdb_head_series.ip ~ Utf8(\"^(10.0.160.237:8080|10.0.160.237:9090)$\") AND prometheus_tsdb_head_series.greptime_timestamp >= TimestampMillisecond(-1000, None) AND prometheus_tsdb_head_series.greptime_timestamp <= TimestampMillisecond(100001000, None) [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
+        \n              Filter: prometheus_tsdb_head_series.ip ~ Utf8(\"^(?:(10.0.160.237:8080|10.0.160.237:9090))$\") AND prometheus_tsdb_head_series.greptime_timestamp >= TimestampMillisecond(-1000, None) AND prometheus_tsdb_head_series.greptime_timestamp <= TimestampMillisecond(100001000, None) [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]\
         \n                TableScan: prometheus_tsdb_head_series [ip:Utf8, greptime_timestamp:Timestamp(Millisecond, None), greptime_value:Float64;N]";
 
         assert_eq!(plan.display_indent_schema().to_string(), expected);

src/servers/src/prom_store.rs

@@ -475,6 +475,38 @@ pub fn mock_timeseries() -> Vec<TimeSeries> {
     ]
 }
 
+/// Add new labels to the mock timeseries.
+pub fn mock_timeseries_new_label() -> Vec<TimeSeries> {
+    let ts_demo_metrics = TimeSeries {
+        labels: vec![
+            new_label(METRIC_NAME_LABEL.to_string(), "demo_metrics".to_string()),
+            new_label("idc".to_string(), "idc3".to_string()),
+            new_label("new_label1".to_string(), "foo".to_string()),
+        ],
+        samples: vec![Sample {
+            value: 42.0,
+            timestamp: 3000,
+        }],
+        ..Default::default()
+    };
+    let ts_multi_labels = TimeSeries {
+        labels: vec![
+            new_label(METRIC_NAME_LABEL.to_string(), "metric1".to_string()),
+            new_label("idc".to_string(), "idc4".to_string()),
+            new_label("env".to_string(), "prod".to_string()),
+            new_label("host".to_string(), "host9".to_string()),
+            new_label("new_label2".to_string(), "bar".to_string()),
+        ],
+        samples: vec![Sample {
+            value: 99.0,
+            timestamp: 4000,
+        }],
+        ..Default::default()
+    };
+
+    vec![ts_demo_metrics, ts_multi_labels]
+}
+
 #[cfg(test)]
 mod tests {
     use std::sync::Arc;

src/session/src/context.rs

@@ -182,6 +182,7 @@ impl From<QueryContext> for api::v1::QueryContext {
             channel: channel as u32,
             snapshot_seqs: Some(api::v1::SnapshotSequences {
                 snapshot_seqs: snapshot_seqs.read().unwrap().clone(),
+                sst_min_sequences: Default::default(),
             }),
             explain,
         }

src/store-api/Cargo.toml

@@ -13,6 +13,7 @@ aquamarine.workspace = true
 async-trait.workspace = true
 common-base.workspace = true
 common-error.workspace = true
+common-grpc.workspace = true
 common-macro.workspace = true
 common-recordbatch.workspace = true
 common-time.workspace = true

src/store-api/src/metadata.rs

@@ -973,6 +973,21 @@ pub enum MetadataError {
         #[snafu(implicit)]
         location: Location,
     },
+
+    #[snafu(display("Failed to encode/decode flight message"))]
+    FlightCodec {
+        source: common_grpc::Error,
+        #[snafu(implicit)]
+        location: Location,
+    },
+
+    #[snafu(display("Failed to decode prost message"))]
+    Prost {
+        #[snafu(source)]
+        error: prost::DecodeError,
+        #[snafu(implicit)]
+        location: Location,
+    },
 }
 
 impl ErrorExt for MetadataError {

src/store-api/src/region_request.rs

@@ -12,41 +12,42 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use std::collections::hash_map::Entry;
 use std::collections::HashMap;
 use std::fmt::{self, Display};
-use std::io::Cursor;
 
 use api::helper::ColumnDataTypeWrapper;
 use api::v1::add_column_location::LocationType;
 use api::v1::column_def::{
     as_fulltext_option_analyzer, as_fulltext_option_backend, as_skipping_index_type,
 };
+use api::v1::region::bulk_insert_request::Body;
 use api::v1::region::{
-    alter_request, compact_request, region_request, AlterRequest, AlterRequests,
+    alter_request, compact_request, region_request, AlterRequest, AlterRequests, ArrowIpc,
-    BulkInsertRequests, CloseRequest, CompactRequest, CreateRequest, CreateRequests,
+    BulkInsertRequest, CloseRequest, CompactRequest, CreateRequest, CreateRequests, DeleteRequests,
-    DeleteRequests, DropRequest, DropRequests, FlushRequest, InsertRequests, OpenRequest,
+    DropRequest, DropRequests, FlushRequest, InsertRequests, OpenRequest, TruncateRequest,
-    TruncateRequest,
 };
 use api::v1::{
     self, set_index, Analyzer, FulltextBackend as PbFulltextBackend, Option as PbOption, Rows,
     SemanticType, SkippingIndexType as PbSkippingIndexType, WriteHint,
 };
 pub use common_base::AffectedRows;
+use common_grpc::flight::{FlightDecoder, FlightMessage};
+use common_grpc::FlightData;
 use common_recordbatch::DfRecordBatch;
 use common_time::TimeToLive;
-use datatypes::arrow::ipc::reader::FileReader;
 use datatypes::prelude::ConcreteDataType;
 use datatypes::schema::{FulltextOptions, SkippingIndexOptions};
+use prost::Message;
 use serde::{Deserialize, Serialize};
 use snafu::{ensure, OptionExt, ResultExt};
 use strum::{AsRefStr, IntoStaticStr};
 
 use crate::logstore::entry;
 use crate::metadata::{
-    ColumnMetadata, DecodeArrowIpcSnafu, DecodeProtoSnafu, InvalidRawRegionRequestSnafu,
+    ColumnMetadata, DecodeProtoSnafu, FlightCodecSnafu, InvalidRawRegionRequestSnafu,
     InvalidRegionRequestSnafu, InvalidSetRegionOptionRequestSnafu,
-    InvalidUnsetRegionOptionRequestSnafu, MetadataError, RegionMetadata, Result, UnexpectedSnafu,
+    InvalidUnsetRegionOptionRequestSnafu, MetadataError, ProstSnafu, RegionMetadata, Result,
+    UnexpectedSnafu,
 };
 use crate::metric_engine_consts::PHYSICAL_TABLE_METADATA_KEY;
 use crate::mito_engine_options::{
@@ -152,7 +153,7 @@ impl RegionRequest {
             region_request::Body::Creates(creates) => make_region_creates(creates),
             region_request::Body::Drops(drops) => make_region_drops(drops),
             region_request::Body::Alters(alters) => make_region_alters(alters),
-            region_request::Body::BulkInserts(bulk) => make_region_bulk_inserts(bulk),
+            region_request::Body::BulkInsert(bulk) => make_region_bulk_inserts(bulk),
             region_request::Body::Sync(_) => UnexpectedSnafu {
                 reason: "Sync request should be handled separately by RegionServer",
             }
@@ -326,49 +327,36 @@ fn make_region_truncate(truncate: TruncateRequest) -> Result<Vec<(RegionId, Regi
     )])
 }
 
-/// Convert [BulkInsertRequests] to [RegionRequest] and group by [RegionId].
+/// Convert [BulkInsertRequest] to [RegionRequest] and group by [RegionId].
-fn make_region_bulk_inserts(
+fn make_region_bulk_inserts(request: BulkInsertRequest) -> Result<Vec<(RegionId, RegionRequest)>> {
-    requests: BulkInsertRequests,
+    let Some(Body::ArrowIpc(request)) = request.body else {
-) -> Result<Vec<(RegionId, RegionRequest)>> {
+        return Ok(vec![]);
-    let mut region_requests: HashMap<u64, Vec<BulkInsertPayload>> =
+    };
-        HashMap::with_capacity(requests.requests.len());
 
-    for req in requests.requests {
+    let ArrowIpc {
-        let region_id = req.region_id;
+        region_id,
-        match req.payload_type() {
+        schema,
-            api::v1::region::BulkInsertType::ArrowIpc => {
+        payload,
-                // todo(hl): use StreamReader instead
+    } = request;
-                let reader = FileReader::try_new(Cursor::new(req.payload), None)
-                    .context(DecodeArrowIpcSnafu)?;
-                let record_batches = reader
-                    .map(|b| b.map(BulkInsertPayload::ArrowIpc))
-                    .try_collect::<Vec<_>>()
-                    .context(DecodeArrowIpcSnafu)?;
-                match region_requests.entry(region_id) {
-                    Entry::Occupied(mut e) => {
-                        e.get_mut().extend(record_batches);
-                    }
-                    Entry::Vacant(e) => {
-                        e.insert(record_batches);
-                    }
-                }
-            }
-        }
-    }
 
-    let result = region_requests
+    let schema_data = FlightData::decode(schema.clone()).context(ProstSnafu)?;
-        .into_iter()
+    let payload_data = FlightData::decode(payload.clone()).context(ProstSnafu)?;
-        .map(|(region_id, payloads)| {
+    let mut decoder = FlightDecoder::default();
-            (
+    let _schema_message = decoder.try_decode(schema_data).context(FlightCodecSnafu)?;
-                region_id.into(),
+    let FlightMessage::Recordbatch(rb) =
-                RegionRequest::BulkInserts(RegionBulkInsertsRequest {
+        decoder.try_decode(payload_data).context(FlightCodecSnafu)?
-                    region_id: region_id.into(),
+    else {
-                    payloads,
+        unreachable!("Always expect record batch message after schema");
-                }),
+    };
-            )
+
-        })
+    let region_id: RegionId = region_id.into();
-        .collect::<Vec<_>>();
+    Ok(vec![(
-    Ok(result)
+        region_id,
+        RegionRequest::BulkInserts(RegionBulkInsertsRequest {
+            region_id,
+            payloads: vec![BulkInsertPayload::ArrowIpc(rb.df_record_batch().clone())],
+        }),
+    )])
 }
 
 /// Request to put data into a region.

tests-integration/fixtures/docker-compose.yml

@@ -14,7 +14,6 @@ services:
       - 9092:9092
       - 9093:9093
     environment:
-      # KRaft settings
       KAFKA_CFG_NODE_ID: "1"
       KAFKA_CFG_PROCESS_ROLES: broker,controller
       KAFKA_CFG_CONTROLLER_QUORUM_VOTERS: 1@127.0.0.1:2181
@@ -27,6 +26,7 @@ services:
       KAFKA_BROKER_ID: "1"
       KAFKA_CLIENT_USERS: "user_kafka"
       KAFKA_CLIENT_PASSWORDS: "secret"
+      KAFKA_CFG_AUTO_CREATE_TOPICS_ENABLE: false
     depends_on:
       zookeeper:
         condition: service_started

tests-integration/src/test_util.rs

@@ -458,6 +458,7 @@ pub async fn setup_test_http_app_with_frontend_and_user_provider(
         ))
         .with_log_ingest_handler(instance.fe_instance().clone(), None, None)
         .with_logs_handler(instance.fe_instance().clone())
+        .with_influxdb_handler(instance.fe_instance().clone())
         .with_otlp_handler(instance.fe_instance().clone())
         .with_jaeger_handler(instance.fe_instance().clone())
         .with_greptime_config_options(instance.opts.to_toml().unwrap());

tests-integration/tests/http.rs

@@ -43,7 +43,7 @@ use servers::http::result::greptime_result_v1::GreptimedbV1Response;
 use servers::http::result::influxdb_result_v1::{InfluxdbOutput, InfluxdbV1Response};
 use servers::http::test_helpers::{TestClient, TestResponse};
 use servers::http::GreptimeQueryOutput;
-use servers::prom_store;
+use servers::prom_store::{self, mock_timeseries_new_label};
 use table::table_name::TableName;
 use tests_integration::test_util::{
     setup_test_http_app, setup_test_http_app_with_frontend,
@@ -113,6 +113,8 @@ macro_rules! http_tests {
                 test_log_query,
                 test_jaeger_query_api,
                 test_jaeger_query_api_for_trace_v1,
+
+                test_influxdb_write,
             );
         )*
     };
@@ -1223,6 +1225,24 @@ pub async fn test_prometheus_remote_write(store_type: StorageType) {
         .await;
     assert_eq!(res.status(), StatusCode::NO_CONTENT);
 
+    // Write snappy encoded data with new labels
+    let write_request = WriteRequest {
+        timeseries: mock_timeseries_new_label(),
+        ..Default::default()
+    };
+    let serialized_request = write_request.encode_to_vec();
+    let compressed_request =
+        prom_store::snappy_compress(&serialized_request).expect("failed to encode snappy");
+
+    let res = client
+        .post("/v1/prometheus/write")
+        .header("Content-Encoding", "snappy")
+        .body(compressed_request)
+        .send()
+        .await;
+
+    assert_eq!(res.status(), StatusCode::NO_CONTENT);
+
     guard.remove_all().await;
 }
 
@@ -3919,6 +3939,52 @@ pub async fn test_jaeger_query_api_for_trace_v1(store_type: StorageType) {
     guard.remove_all().await;
 }
 
+pub async fn test_influxdb_write(store_type: StorageType) {
+    common_telemetry::init_default_ut_logging();
+    let (app, mut guard) =
+        setup_test_http_app_with_frontend(store_type, "test_influxdb_write").await;
+
+    let client = TestClient::new(app).await;
+
+    // Only write field cpu.
+    let result = client
+        .post("/v1/influxdb/write?db=public&p=greptime&u=greptime")
+        .body("test_alter,host=host1 cpu=1.2 1664370459457010101")
+        .send()
+        .await;
+    assert_eq!(result.status(), 204);
+    assert!(result.text().await.is_empty());
+
+    // Only write field mem.
+    let result = client
+        .post("/v1/influxdb/write?db=public&p=greptime&u=greptime")
+        .body("test_alter,host=host1 mem=10240.0 1664370469457010101")
+        .send()
+        .await;
+    assert_eq!(result.status(), 204);
+    assert!(result.text().await.is_empty());
+
+    // Write field cpu & mem.
+    let result = client
+        .post("/v1/influxdb/write?db=public&p=greptime&u=greptime")
+        .body("test_alter,host=host1 cpu=3.2,mem=20480.0 1664370479457010101")
+        .send()
+        .await;
+    assert_eq!(result.status(), 204);
+    assert!(result.text().await.is_empty());
+
+    let expected = r#"[["host1",1.2,1664370459457010101,null],["host1",null,1664370469457010101,10240.0],["host1",3.2,1664370479457010101,20480.0]]"#;
+    validate_data(
+        "test_influxdb_write",
+        &client,
+        "select * from test_alter order by ts;",
+        expected,
+    )
+    .await;
+
+    guard.remove_all().await;
+}
+
 async fn validate_data(test_name: &str, client: &TestClient, sql: &str, expected: &str) {
     let res = client
         .get(format!("/v1/sql?sql={sql}").as_str())

tests/cases/standalone/common/alter/alter_physical_table.result

@@ -0,0 +1,109 @@
+CREATE TABLE phy (ts timestamp time index, val double, a_label STRING, PRIMARY KEY(a_label)) engine=metric with ("physical_metric_table" = "");
+
+Affected Rows: 0
+
+ALTER TABLE phy ADD COLUMN b_label STRING PRIMARY KEY;
+
+Error: 1001(Unsupported), Alter request to physical region is forbidden
+
+ALTER TABLE phy DROP COLUMN a_label;
+
+Error: 1004(InvalidArguments), Not allowed to remove index column a_label from table phy
+
+ALTER TABLE phy SET 'ttl'='1d';
+
+Affected Rows: 0
+
+SHOW CREATE TABLE phy;
+
++-------+------------------------------------+
+| Table | Create Table                       |
++-------+------------------------------------+
+| phy   | CREATE TABLE IF NOT EXISTS "phy" ( |
+|       |   "ts" TIMESTAMP(3) NOT NULL,      |
+|       |   "val" DOUBLE NULL,               |
+|       |   "a_label" STRING NULL,           |
+|       |   TIME INDEX ("ts"),               |
+|       |   PRIMARY KEY ("a_label")          |
+|       | )                                  |
+|       |                                    |
+|       | ENGINE=metric                      |
+|       | WITH(                              |
+|       |   physical_metric_table = '',      |
+|       |   ttl = '1day'                     |
+|       | )                                  |
++-------+------------------------------------+
+
+ALTER TABLE phy UNSET 'ttl';
+
+Affected Rows: 0
+
+SHOW CREATE TABLE phy;
+
++-------+------------------------------------+
+| Table | Create Table                       |
++-------+------------------------------------+
+| phy   | CREATE TABLE IF NOT EXISTS "phy" ( |
+|       |   "ts" TIMESTAMP(3) NOT NULL,      |
+|       |   "val" DOUBLE NULL,               |
+|       |   "a_label" STRING NULL,           |
+|       |   TIME INDEX ("ts"),               |
+|       |   PRIMARY KEY ("a_label")          |
+|       | )                                  |
+|       |                                    |
+|       | ENGINE=metric                      |
+|       | WITH(                              |
+|       |   physical_metric_table = ''       |
+|       | )                                  |
++-------+------------------------------------+
+
+ALTER TABLE phy MODIFY COLUMN a_label SET INVERTED INDEX;
+
+Affected Rows: 0
+
+SHOW CREATE TABLE phy;
+
++-------+-----------------------------------------+
+| Table | Create Table                            |
++-------+-----------------------------------------+
+| phy   | CREATE TABLE IF NOT EXISTS "phy" (      |
+|       |   "ts" TIMESTAMP(3) NOT NULL,           |
+|       |   "val" DOUBLE NULL,                    |
+|       |   "a_label" STRING NULL INVERTED INDEX, |
+|       |   TIME INDEX ("ts"),                    |
+|       |   PRIMARY KEY ("a_label")               |
+|       | )                                       |
+|       |                                         |
+|       | ENGINE=metric                           |
+|       | WITH(                                   |
+|       |   physical_metric_table = ''            |
+|       | )                                       |
++-------+-----------------------------------------+
+
+ALTER TABLE phy MODIFY COLUMN a_label UNSET INVERTED INDEX;
+
+Affected Rows: 0
+
+SHOW CREATE TABLE phy;
+
++-------+------------------------------------+
+| Table | Create Table                       |
++-------+------------------------------------+
+| phy   | CREATE TABLE IF NOT EXISTS "phy" ( |
+|       |   "ts" TIMESTAMP(3) NOT NULL,      |
+|       |   "val" DOUBLE NULL,               |
+|       |   "a_label" STRING NULL,           |
+|       |   TIME INDEX ("ts"),               |
+|       |   PRIMARY KEY ("a_label")          |
+|       | )                                  |
+|       |                                    |
+|       | ENGINE=metric                      |
+|       | WITH(                              |
+|       |   physical_metric_table = ''       |
+|       | )                                  |
++-------+------------------------------------+
+
+DROP TABLE phy;
+
+Affected Rows: 0
+

tests/cases/standalone/common/alter/alter_physical_table.sql

@@ -0,0 +1,23 @@
+CREATE TABLE phy (ts timestamp time index, val double, a_label STRING, PRIMARY KEY(a_label)) engine=metric with ("physical_metric_table" = "");
+
+ALTER TABLE phy ADD COLUMN b_label STRING PRIMARY KEY;
+
+ALTER TABLE phy DROP COLUMN a_label;
+
+ALTER TABLE phy SET 'ttl'='1d';
+
+SHOW CREATE TABLE phy;
+
+ALTER TABLE phy UNSET 'ttl';
+
+SHOW CREATE TABLE phy;
+
+ALTER TABLE phy MODIFY COLUMN a_label SET INVERTED INDEX;
+
+SHOW CREATE TABLE phy;
+
+ALTER TABLE phy MODIFY COLUMN a_label UNSET INVERTED INDEX;
+
+SHOW CREATE TABLE phy;
+
+DROP TABLE phy;

tests/cases/standalone/common/flow/flow_advance_ttl.result

@@ -8,7 +8,7 @@ CREATE TABLE distinct_basic (
 
 Affected Rows: 0
 
--- should fail
+-- should fallback to streaming mode
 -- SQLNESS REPLACE id=\d+ id=REDACTED
 CREATE FLOW test_distinct_basic SINK TO out_distinct_basic AS
 SELECT
@@ -16,9 +16,151 @@ SELECT
 FROM
     distinct_basic;
 
-Error: 3001(EngineExecuteQuery), Unsupported: Source table `greptime.public.distinct_basic`(id=REDACTED) has instant TTL, Instant TTL is not supported under batching mode. Consider using a TTL longer than flush interval
+Affected Rows: 0
 
-ALTER TABLE distinct_basic SET 'ttl' = '5s';
+-- flow_options should have a flow_type:streaming
+-- since source table's ttl=instant
+SELECT flow_name, options FROM INFORMATION_SCHEMA.FLOWS;
+
++---------------------+---------------------------+
+| flow_name           | options                   |
++---------------------+---------------------------+
+| test_distinct_basic | {"flow_type":"streaming"} |
++---------------------+---------------------------+
+
+SHOW CREATE TABLE distinct_basic;
+
++----------------+-----------------------------------------------------------+
+| Table          | Create Table                                              |
++----------------+-----------------------------------------------------------+
+| distinct_basic | CREATE TABLE IF NOT EXISTS "distinct_basic" (             |
+|                |   "number" INT NULL,                                      |
+|                |   "ts" TIMESTAMP(3) NOT NULL DEFAULT current_timestamp(), |
+|                |   TIME INDEX ("ts"),                                      |
+|                |   PRIMARY KEY ("number")                                  |
+|                | )                                                         |
+|                |                                                           |
+|                | ENGINE=mito                                               |
+|                | WITH(                                                     |
+|                |   ttl = 'instant'                                         |
+|                | )                                                         |
++----------------+-----------------------------------------------------------+
+
+SHOW CREATE TABLE out_distinct_basic;
+
++--------------------+---------------------------------------------------+
+| Table              | Create Table                                      |
++--------------------+---------------------------------------------------+
+| out_distinct_basic | CREATE TABLE IF NOT EXISTS "out_distinct_basic" ( |
+|                    |   "dis" INT NULL,                                 |
+|                    |   "update_at" TIMESTAMP(3) NULL,                  |
+|                    |   "__ts_placeholder" TIMESTAMP(3) NOT NULL,       |
+|                    |   TIME INDEX ("__ts_placeholder"),                |
+|                    |   PRIMARY KEY ("dis")                             |
+|                    | )                                                 |
+|                    |                                                   |
+|                    | ENGINE=mito                                       |
+|                    |                                                   |
++--------------------+---------------------------------------------------+
+
+-- SQLNESS SLEEP 3s
+INSERT INTO
+    distinct_basic
+VALUES
+    (20, "2021-07-01 00:00:00.200"),
+    (20, "2021-07-01 00:00:00.200"),
+    (22, "2021-07-01 00:00:00.600");
+
+Affected Rows: 0
+
+-- SQLNESS REPLACE (ADMIN\sFLUSH_FLOW\('\w+'\)\s+\|\n\+-+\+\n\|\s+)[0-9]+\s+\| $1 FLOW_FLUSHED  |
+ADMIN FLUSH_FLOW('test_distinct_basic');
+
++-----------------------------------------+
+| ADMIN FLUSH_FLOW('test_distinct_basic') |
++-----------------------------------------+
+|  FLOW_FLUSHED  |
++-----------------------------------------+
+
+SELECT
+    dis
+FROM
+    out_distinct_basic;
+
++-----+
+| dis |
++-----+
+| 20  |
+| 22  |
++-----+
+
+SELECT number FROM distinct_basic;
+
+++
+++
+
+-- SQLNESS SLEEP 6s
+ADMIN FLUSH_TABLE('distinct_basic');
+
++-------------------------------------+
+| ADMIN FLUSH_TABLE('distinct_basic') |
++-------------------------------------+
+| 0                                   |
++-------------------------------------+
+
+INSERT INTO
+    distinct_basic
+VALUES
+    (23, "2021-07-01 00:00:01.600");
+
+Affected Rows: 0
+
+-- SQLNESS REPLACE (ADMIN\sFLUSH_FLOW\('\w+'\)\s+\|\n\+-+\+\n\|\s+)[0-9]+\s+\| $1 FLOW_FLUSHED  |
+ADMIN FLUSH_FLOW('test_distinct_basic');
+
++-----------------------------------------+
+| ADMIN FLUSH_FLOW('test_distinct_basic') |
++-----------------------------------------+
+|  FLOW_FLUSHED  |
++-----------------------------------------+
+
+SELECT
+    dis
+FROM
+    out_distinct_basic;
+
++-----+
+| dis |
++-----+
+| 20  |
+| 22  |
+| 23  |
++-----+
+
+SELECT number FROM distinct_basic;
+
+++
+++
+
+DROP FLOW test_distinct_basic;
+
+Affected Rows: 0
+
+DROP TABLE distinct_basic;
+
+Affected Rows: 0
+
+DROP TABLE out_distinct_basic;
+
+Affected Rows: 0
+
+-- test ttl = 5s
+CREATE TABLE distinct_basic (
+    number INT,
+    ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY(number),
+    TIME INDEX(ts)
+)WITH ('ttl' = '5s');
 
 Affected Rows: 0
 
@@ -30,7 +172,26 @@ FROM
 
 Affected Rows: 0
 
+-- flow_options should have a flow_type:batching
+-- since source table's ttl=instant
+SELECT flow_name, options FROM INFORMATION_SCHEMA.FLOWS;
+
++---------------------+--------------------------+
+| flow_name           | options                  |
++---------------------+--------------------------+
+| test_distinct_basic | {"flow_type":"batching"} |
++---------------------+--------------------------+
+
 -- SQLNESS ARG restart=true
+SELECT 1;
+
++----------+
+| Int64(1) |
++----------+
+| 1        |
++----------+
+
+-- SQLNESS SLEEP 3s
 INSERT INTO
     distinct_basic
 VALUES
@@ -130,41 +291,6 @@ ADMIN FLUSH_FLOW('test_distinct_basic');
 |  FLOW_FLUSHED  |
 +-----------------------------------------+
 
-SHOW CREATE TABLE distinct_basic;
-
-+----------------+-----------------------------------------------------------+
-| Table          | Create Table                                              |
-+----------------+-----------------------------------------------------------+
-| distinct_basic | CREATE TABLE IF NOT EXISTS "distinct_basic" (             |
-|                |   "number" INT NULL,                                      |
-|                |   "ts" TIMESTAMP(3) NOT NULL DEFAULT current_timestamp(), |
-|                |   TIME INDEX ("ts"),                                      |
-|                |   PRIMARY KEY ("number")                                  |
-|                | )                                                         |
-|                |                                                           |
-|                | ENGINE=mito                                               |
-|                | WITH(                                                     |
-|                |   ttl = '5s'                                              |
-|                | )                                                         |
-+----------------+-----------------------------------------------------------+
-
-SHOW CREATE TABLE out_distinct_basic;
-
-+--------------------+---------------------------------------------------+
-| Table              | Create Table                                      |
-+--------------------+---------------------------------------------------+
-| out_distinct_basic | CREATE TABLE IF NOT EXISTS "out_distinct_basic" ( |
-|                    |   "dis" INT NULL,                                 |
-|                    |   "update_at" TIMESTAMP(3) NULL,                  |
-|                    |   "__ts_placeholder" TIMESTAMP(3) NOT NULL,       |
-|                    |   TIME INDEX ("__ts_placeholder"),                |
-|                    |   PRIMARY KEY ("dis")                             |
-|                    | )                                                 |
-|                    |                                                   |
-|                    | ENGINE=mito                                       |
-|                    |                                                   |
-+--------------------+---------------------------------------------------+
-
 SELECT
     dis
 FROM

tests/cases/standalone/common/flow/flow_advance_ttl.sql

@@ -6,7 +6,7 @@ CREATE TABLE distinct_basic (
     TIME INDEX(ts)
 )WITH ('ttl' = 'instant');
 
--- should fail
+-- should fallback to streaming mode
 -- SQLNESS REPLACE id=\d+ id=REDACTED
 CREATE FLOW test_distinct_basic SINK TO out_distinct_basic AS
 SELECT
@@ -14,7 +14,61 @@ SELECT
 FROM
     distinct_basic;
 
-ALTER TABLE distinct_basic SET 'ttl' = '5s';
+-- flow_options should have a flow_type:streaming
+-- since source table's ttl=instant
+SELECT flow_name, options FROM INFORMATION_SCHEMA.FLOWS;
+
+SHOW CREATE TABLE distinct_basic;
+
+SHOW CREATE TABLE out_distinct_basic;
+
+-- SQLNESS SLEEP 3s
+INSERT INTO
+    distinct_basic
+VALUES
+    (20, "2021-07-01 00:00:00.200"),
+    (20, "2021-07-01 00:00:00.200"),
+    (22, "2021-07-01 00:00:00.600");
+
+-- SQLNESS REPLACE (ADMIN\sFLUSH_FLOW\('\w+'\)\s+\|\n\+-+\+\n\|\s+)[0-9]+\s+\| $1 FLOW_FLUSHED  |
+ADMIN FLUSH_FLOW('test_distinct_basic');
+
+SELECT
+    dis
+FROM
+    out_distinct_basic;
+
+SELECT number FROM distinct_basic;
+
+-- SQLNESS SLEEP 6s
+ADMIN FLUSH_TABLE('distinct_basic');
+
+INSERT INTO
+    distinct_basic
+VALUES
+    (23, "2021-07-01 00:00:01.600");
+
+-- SQLNESS REPLACE (ADMIN\sFLUSH_FLOW\('\w+'\)\s+\|\n\+-+\+\n\|\s+)[0-9]+\s+\| $1 FLOW_FLUSHED  |
+ADMIN FLUSH_FLOW('test_distinct_basic');
+
+SELECT
+    dis
+FROM
+    out_distinct_basic;
+
+SELECT number FROM distinct_basic;
+
+DROP FLOW test_distinct_basic;
+DROP TABLE distinct_basic;
+DROP TABLE out_distinct_basic;
+
+-- test ttl = 5s
+CREATE TABLE distinct_basic (
+    number INT,
+    ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY(number),
+    TIME INDEX(ts)
+)WITH ('ttl' = '5s');
 
 CREATE FLOW test_distinct_basic SINK TO out_distinct_basic AS
 SELECT
@@ -22,7 +76,14 @@ SELECT
 FROM
     distinct_basic;
 
+-- flow_options should have a flow_type:batching
+-- since source table's ttl=instant
+SELECT flow_name, options FROM INFORMATION_SCHEMA.FLOWS;
+
 -- SQLNESS ARG restart=true
+SELECT 1;
+
+-- SQLNESS SLEEP 3s
 INSERT INTO
     distinct_basic
 VALUES
@@ -55,10 +116,6 @@ VALUES
 -- SQLNESS REPLACE (ADMIN\sFLUSH_FLOW\('\w+'\)\s+\|\n\+-+\+\n\|\s+)[0-9]+\s+\| $1 FLOW_FLUSHED  |
 ADMIN FLUSH_FLOW('test_distinct_basic');
 
-SHOW CREATE TABLE distinct_basic;
-
-SHOW CREATE TABLE out_distinct_basic;
-
 SELECT
     dis
 FROM

tests/cases/standalone/common/flow/flow_auto_sink_table.result

@@ -44,6 +44,15 @@ ADMIN FLUSH_FLOW('test_numbers_basic');
 +----------------------------------------+
 
 -- SQLNESS ARG restart=true
+SELECT 1;
+
++----------+
+| Int64(1) |
++----------+
+| 1        |
++----------+
+
+-- SQLNESS SLEEP 3s
 SHOW CREATE TABLE out_num_cnt_basic;
 
 +-------------------+--------------------------------------------------+
@@ -101,6 +110,16 @@ GROUP BY
 
 Affected Rows: 0
 
+-- SQLNESS ARG restart=true
+SELECT 1;
+
++----------+
+| Int64(1) |
++----------+
+| 1        |
++----------+
+
+-- SQLNESS SLEEP 3s
 SHOW CREATE TABLE out_num_cnt_basic;
 
 +-------------------+--------------------------------------------------+
@@ -118,6 +137,15 @@ SHOW CREATE TABLE out_num_cnt_basic;
 +-------------------+--------------------------------------------------+
 
 -- SQLNESS ARG restart=true
+SELECT 1;
+
++----------+
+| Int64(1) |
++----------+
+| 1        |
++----------+
+
+-- SQLNESS SLEEP 3s
 SHOW CREATE FLOW test_numbers_basic;
 
 +--------------------+---------------------------------------------------------------------------------------+