feat: truly limit time range by split window

* chore/enable-flight-encoder:
 ### Add Flight Compression Support

 - **Configuration Updates**:
   - Added `grpc.flight_compression` option to `config/config.md`, `config/datanode.example.toml`, and `config/frontend.example.toml` to specify compression modes for Arrow IPC service.

 - **Code Enhancements**:
   - Updated `FlightEncoder` in `src/common/grpc/src/flight.rs` to support compression modes.
   - Modified `RegionServer` and `DatanodeBuilder` in `src/datanode/src/datanode.rs` and `src/datanode/src/region_server.rs` to handle `FlightCompression`.
   - Integrated `FlightCompression` in `src/servers/src/grpc.rs` and `src/servers/src/grpc/flight.rs` to manage compression settings.

 - **Testing and Integration**:
   - Updated test utilities and integration tests in `tests-integration/src/grpc/flight.rs` and `tests-integration/src/test_util.rs` to include `FlightCompression`.

Signed-off-by: Lei, HUANG <mrsatangel@gmail.com>

* chore/enable-flight-encoder:
 ### Enable Compression in FlightClient

 - **`client.rs`**: Updated `make_flight_client` to accept `send_compression` and `accept_compression` parameters, enabling Zstd compression for sending and receiving messages.
 - **`client_manager.rs`**: Modified `datanode` method to pass compression settings from `ChannelConfig` to `RegionRequester`.
 - **`database.rs`**: Adjusted calls to `make_flight_client` to include compression parameters.
 - **`region.rs`**: Updated `RegionRequester` to store and utilize compression settings.
 - **`frontend.rs`**: Configured `ChannelConfig` to enable compression based on options.
 - **`channel_manager.rs`**: Added `send_compression` and `accept_compression` fields to `ChannelConfig` with default values and updated tests accordingly.

Signed-off-by: Lei, HUANG <lhuang@greptime.com>

* chore/enable-flight-encoder:
 ### Update Compression Defaults and Documentation

 - **Configuration Files**: Updated `datanode.example.toml` and `frontend.example.toml` to include a default setting comment for `flight_compression`, specifying it defaults to `none`.
 - **gRPC Server Code**: Modified `grpc.rs` to set `None` as the default for `FlightCompression` instead of `ArrowIpc`.

Signed-off-by: Lei, HUANG <lhuang@greptime.com>

---------

Signed-off-by: Lei, HUANG <mrsatangel@gmail.com>
Signed-off-by: Lei, HUANG <lhuang@greptime.com>

.github/scripts/update-helm-charts-version.sh

@@ -30,7 +30,7 @@ update_helm_charts_version() {
 
   # Commit the changes.
   git add .
-  git commit -m "chore: Update GreptimeDB version to ${VERSION}"
+  git commit -s -m "chore: Update GreptimeDB version to ${VERSION}"
   git push origin $BRANCH_NAME
 
   # Create a Pull Request.

.github/scripts/update-homebrew-greptme-version.sh

@@ -26,7 +26,7 @@ update_homebrew_greptime_version() {
 
   # Commit the changes.
   git add .
-  git commit -m "chore: Update GreptimeDB version to ${VERSION}"
+  git commit -s -m "chore: Update GreptimeDB version to ${VERSION}"
   git push origin $BRANCH_NAME
 
   # Create a Pull Request.

Cargo.lock

@@ -3252,7 +3252,7 @@ dependencies = [
 [[package]]
 name = "datafusion"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "arrow 54.2.1",
  "arrow-array 54.2.1",
@@ -3303,7 +3303,7 @@ dependencies = [
 [[package]]
 name = "datafusion-catalog"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "arrow 54.2.1",
  "async-trait",
@@ -3323,7 +3323,7 @@ dependencies = [
 [[package]]
 name = "datafusion-catalog-listing"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "arrow 54.2.1",
  "arrow-schema 54.3.1",
@@ -3346,7 +3346,7 @@ dependencies = [
 [[package]]
 name = "datafusion-common"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "ahash 0.8.11",
  "arrow 54.2.1",
@@ -3371,7 +3371,7 @@ dependencies = [
 [[package]]
 name = "datafusion-common-runtime"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "log",
  "tokio",
@@ -3380,12 +3380,12 @@ dependencies = [
 [[package]]
 name = "datafusion-doc"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 
 [[package]]
 name = "datafusion-execution"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "arrow 54.2.1",
  "dashmap",
@@ -3403,7 +3403,7 @@ dependencies = [
 [[package]]
 name = "datafusion-expr"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "arrow 54.2.1",
  "chrono",
@@ -3423,7 +3423,7 @@ dependencies = [
 [[package]]
 name = "datafusion-expr-common"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "arrow 54.2.1",
  "datafusion-common",
@@ -3434,7 +3434,7 @@ dependencies = [
 [[package]]
 name = "datafusion-functions"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "arrow 54.2.1",
  "arrow-buffer 54.3.1",
@@ -3463,7 +3463,7 @@ dependencies = [
 [[package]]
 name = "datafusion-functions-aggregate"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "ahash 0.8.11",
  "arrow 54.2.1",
@@ -3484,7 +3484,7 @@ dependencies = [
 [[package]]
 name = "datafusion-functions-aggregate-common"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "ahash 0.8.11",
  "arrow 54.2.1",
@@ -3496,7 +3496,7 @@ dependencies = [
 [[package]]
 name = "datafusion-functions-nested"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "arrow 54.2.1",
  "arrow-array 54.2.1",
@@ -3518,7 +3518,7 @@ dependencies = [
 [[package]]
 name = "datafusion-functions-table"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "arrow 54.2.1",
  "async-trait",
@@ -3533,7 +3533,7 @@ dependencies = [
 [[package]]
 name = "datafusion-functions-window"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "datafusion-common",
  "datafusion-doc",
@@ -3549,7 +3549,7 @@ dependencies = [
 [[package]]
 name = "datafusion-functions-window-common"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "datafusion-common",
  "datafusion-physical-expr-common",
@@ -3558,7 +3558,7 @@ dependencies = [
 [[package]]
 name = "datafusion-macros"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "datafusion-expr",
  "quote",
@@ -3568,7 +3568,7 @@ dependencies = [
 [[package]]
 name = "datafusion-optimizer"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "arrow 54.2.1",
  "chrono",
@@ -3586,7 +3586,7 @@ dependencies = [
 [[package]]
 name = "datafusion-physical-expr"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "ahash 0.8.11",
  "arrow 54.2.1",
@@ -3609,7 +3609,7 @@ dependencies = [
 [[package]]
 name = "datafusion-physical-expr-common"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "ahash 0.8.11",
  "arrow 54.2.1",
@@ -3622,7 +3622,7 @@ dependencies = [
 [[package]]
 name = "datafusion-physical-optimizer"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "arrow 54.2.1",
  "arrow-schema 54.3.1",
@@ -3643,7 +3643,7 @@ dependencies = [
 [[package]]
 name = "datafusion-physical-plan"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "ahash 0.8.11",
  "arrow 54.2.1",
@@ -3673,7 +3673,7 @@ dependencies = [
 [[package]]
 name = "datafusion-sql"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "arrow 54.2.1",
  "arrow-array 54.2.1",
@@ -3691,7 +3691,7 @@ dependencies = [
 [[package]]
 name = "datafusion-substrait"
 version = "45.0.0"
-source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=e104c7cf62b11dd5fe41461b82514978234326b4#e104c7cf62b11dd5fe41461b82514978234326b4"
+source = "git+https://github.com/waynexia/arrow-datafusion.git?rev=12c0381babd52c681043957e9d6ee083a03f7646#12c0381babd52c681043957e9d6ee083a03f7646"
 dependencies = [
  "async-recursion",
  "async-trait",
@@ -5133,7 +5133,7 @@ dependencies = [
 [[package]]
 name = "greptime-proto"
 version = "0.1.0"
-source = "git+https://github.com/GreptimeTeam/greptime-proto.git?rev=2dca1dc67862d7b410838aef81232274c019b3f6#2dca1dc67862d7b410838aef81232274c019b3f6"
+source = "git+https://github.com/GreptimeTeam/greptime-proto.git?rev=454c52634c3bac27de10bf0d85d5533eed1cf03f#454c52634c3bac27de10bf0d85d5533eed1cf03f"
 dependencies = [
  "prost 0.13.5",
  "serde",

Cargo.toml

@@ -116,15 +116,15 @@ clap = { version = "4.4", features = ["derive"] }
 config = "0.13.0"
 crossbeam-utils = "0.8"
 dashmap = "6.1"
-datafusion = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "e104c7cf62b11dd5fe41461b82514978234326b4" }
-datafusion-common = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "e104c7cf62b11dd5fe41461b82514978234326b4" }
-datafusion-expr = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "e104c7cf62b11dd5fe41461b82514978234326b4" }
-datafusion-functions = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "e104c7cf62b11dd5fe41461b82514978234326b4" }
-datafusion-optimizer = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "e104c7cf62b11dd5fe41461b82514978234326b4" }
-datafusion-physical-expr = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "e104c7cf62b11dd5fe41461b82514978234326b4" }
-datafusion-physical-plan = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "e104c7cf62b11dd5fe41461b82514978234326b4" }
-datafusion-sql = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "e104c7cf62b11dd5fe41461b82514978234326b4" }
-datafusion-substrait = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "e104c7cf62b11dd5fe41461b82514978234326b4" }
+datafusion = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "12c0381babd52c681043957e9d6ee083a03f7646" }
+datafusion-common = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "12c0381babd52c681043957e9d6ee083a03f7646" }
+datafusion-expr = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "12c0381babd52c681043957e9d6ee083a03f7646" }
+datafusion-functions = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "12c0381babd52c681043957e9d6ee083a03f7646" }
+datafusion-optimizer = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "12c0381babd52c681043957e9d6ee083a03f7646" }
+datafusion-physical-expr = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "12c0381babd52c681043957e9d6ee083a03f7646" }
+datafusion-physical-plan = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "12c0381babd52c681043957e9d6ee083a03f7646" }
+datafusion-sql = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "12c0381babd52c681043957e9d6ee083a03f7646" }
+datafusion-substrait = { git = "https://github.com/waynexia/arrow-datafusion.git", rev = "12c0381babd52c681043957e9d6ee083a03f7646" }
 deadpool = "0.12"
 deadpool-postgres = "0.14"
 derive_builder = "0.20"
@@ -133,7 +133,7 @@ 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 = "2dca1dc67862d7b410838aef81232274c019b3f6" }
+greptime-proto = { git = "https://github.com/GreptimeTeam/greptime-proto.git", rev = "454c52634c3bac27de10bf0d85d5533eed1cf03f" }
 hex = "0.4"
 http = "1"
 humantime = "2.1"

config/datanode.example.toml

@@ -49,6 +49,7 @@ max_send_message_size = "512MB"
 ## - `transport`: only enable gRPC transport compression (zstd)
 ## - `arrow_ipc`: only enable Arrow IPC compression (lz4)
 ## - `all`: enable all compression.
+## Default to `none`
 flight_compression = "arrow_ipc"
 
 ## gRPC server TLS options, see `mysql.tls` section.

config/frontend.example.toml

@@ -59,6 +59,7 @@ runtime_size = 8
 ## - `transport`: only enable gRPC transport compression (zstd)
 ## - `arrow_ipc`: only enable Arrow IPC compression (lz4)
 ## - `all`: enable all compression.
+## Default to `none`
 flight_compression = "arrow_ipc"
 
 ## gRPC server TLS options, see `mysql.tls` section.

src/cli/src/bench.rs

@@ -58,6 +58,7 @@ where
     info!("{desc}, average operation cost: {cost:.2} ms");
 }
 
+/// Command to benchmark table metadata operations.
 #[derive(Debug, Default, Parser)]
 pub struct BenchTableMetadataCommand {
     #[clap(long)]

src/cli/src/error.rs

@@ -244,6 +244,18 @@ pub enum Error {
         #[snafu(implicit)]
         location: Location,
     },
+    #[snafu(display("Unsupported memory backend"))]
+    UnsupportedMemoryBackend {
+        #[snafu(implicit)]
+        location: Location,
+    },
+
+    #[snafu(display("File path invalid: {}", msg))]
+    InvalidFilePath {
+        msg: String,
+        #[snafu(implicit)]
+        location: Location,
+    },
 }
 
 pub type Result<T> = std::result::Result<T, Error>;
@@ -262,6 +274,8 @@ impl ErrorExt for Error {
             | Error::ConnectEtcd { .. }
             | Error::CreateDir { .. }
             | Error::EmptyResult { .. }
+            | Error::InvalidFilePath { .. }
+            | Error::UnsupportedMemoryBackend { .. }
             | Error::ParseProxyOpts { .. } => StatusCode::InvalidArguments,
 
             Error::StartProcedureManager { source, .. }

src/cli/src/export.rs

@@ -50,6 +50,7 @@ enum ExportTarget {
     All,
 }
 
+/// Command for exporting data from the GreptimeDB.
 #[derive(Debug, Default, Parser)]
 pub struct ExportCommand {
     /// Server address to connect

src/cli/src/import.rs

@@ -40,6 +40,7 @@ enum ImportTarget {
     All,
 }
 
+/// Command to import data from a directory into a GreptimeDB instance.
 #[derive(Debug, Default, Parser)]
 pub struct ImportCommand {
     /// Server address to connect

src/cli/src/lib.rs

@@ -20,7 +20,7 @@ mod import;
 mod meta_snapshot;
 
 use async_trait::async_trait;
-use clap::Parser;
+use clap::{Parser, Subcommand};
 use common_error::ext::BoxedError;
 pub use database::DatabaseClient;
 use error::Result;
@@ -28,7 +28,7 @@ use error::Result;
 pub use crate::bench::BenchTableMetadataCommand;
 pub use crate::export::ExportCommand;
 pub use crate::import::ImportCommand;
-pub use crate::meta_snapshot::{MetaRestoreCommand, MetaSnapshotCommand};
+pub use crate::meta_snapshot::{MetaCommand, MetaInfoCommand, MetaRestoreCommand, MetaSaveCommand};
 
 #[async_trait]
 pub trait Tool: Send + Sync {
@@ -51,3 +51,19 @@ impl AttachCommand {
         unimplemented!("Wait for https://github.com/GreptimeTeam/greptimedb/issues/2373")
     }
 }
+
+/// Subcommand for data operations like export and import.
+#[derive(Subcommand)]
+pub enum DataCommand {
+    Export(ExportCommand),
+    Import(ImportCommand),
+}
+
+impl DataCommand {
+    pub async fn build(&self) -> std::result::Result<Box<dyn Tool>, BoxedError> {
+        match self {
+            DataCommand::Export(cmd) => cmd.build().await,
+            DataCommand::Import(cmd) => cmd.build().await,
+        }
+    }
+}

src/cli/src/meta_snapshot.rs

@@ -12,10 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+use std::path::Path;
 use std::sync::Arc;
 
 use async_trait::async_trait;
-use clap::Parser;
+use clap::{Parser, Subcommand};
 use common_base::secrets::{ExposeSecret, SecretString};
 use common_error::ext::BoxedError;
 use common_meta::kv_backend::chroot::ChrootKvBackend;
@@ -26,10 +27,50 @@ use meta_srv::bootstrap::create_etcd_client;
 use meta_srv::metasrv::BackendImpl;
 use object_store::services::{Fs, S3};
 use object_store::ObjectStore;
-use snafu::ResultExt;
+use snafu::{OptionExt, ResultExt};
 
-use crate::error::{KvBackendNotSetSnafu, OpenDalSnafu, S3ConfigNotSetSnafu};
+use crate::error::{
+    InvalidFilePathSnafu, KvBackendNotSetSnafu, OpenDalSnafu, S3ConfigNotSetSnafu,
+    UnsupportedMemoryBackendSnafu,
+};
 use crate::Tool;
+
+/// Subcommand for metadata snapshot management.
+#[derive(Subcommand)]
+pub enum MetaCommand {
+    #[clap(subcommand)]
+    Snapshot(MetaSnapshotCommand),
+}
+
+impl MetaCommand {
+    pub async fn build(&self) -> Result<Box<dyn Tool>, BoxedError> {
+        match self {
+            MetaCommand::Snapshot(cmd) => cmd.build().await,
+        }
+    }
+}
+
+/// Subcommand for metadata snapshot operations. such as save, restore and info.
+#[derive(Subcommand)]
+pub enum MetaSnapshotCommand {
+    /// Export metadata snapshot tool.
+    Save(MetaSaveCommand),
+    /// Restore metadata snapshot tool.
+    Restore(MetaRestoreCommand),
+    /// Explore metadata from metadata snapshot.
+    Info(MetaInfoCommand),
+}
+
+impl MetaSnapshotCommand {
+    pub async fn build(&self) -> Result<Box<dyn Tool>, BoxedError> {
+        match self {
+            MetaSnapshotCommand::Save(cmd) => cmd.build().await,
+            MetaSnapshotCommand::Restore(cmd) => cmd.build().await,
+            MetaSnapshotCommand::Info(cmd) => cmd.build().await,
+        }
+    }
+}
+
 #[derive(Debug, Default, Parser)]
 struct MetaConnection {
     /// The endpoint of store. one of etcd, pg or mysql.
@@ -91,6 +132,9 @@ impl MetaConnection {
                     .await
                     .map_err(BoxedError::new)?)
                 }
+                Some(BackendImpl::MemoryStore) => UnsupportedMemoryBackendSnafu
+                    .fail()
+                    .map_err(BoxedError::new),
                 _ => KvBackendNotSetSnafu { backend: "all" }
                     .fail()
                     .map_err(BoxedError::new),
@@ -170,7 +214,7 @@ impl S3Config {
 /// It will dump the metadata snapshot to local file or s3 bucket.
 /// The snapshot file will be in binary format.
 #[derive(Debug, Default, Parser)]
-pub struct MetaSnapshotCommand {
+pub struct MetaSaveCommand {
     /// The connection to the metadata store.
     #[clap(flatten)]
     connection: MetaConnection,
@@ -196,7 +240,7 @@ fn create_local_file_object_store(root: &str) -> Result<ObjectStore, BoxedError>
     Ok(object_store)
 }
 
-impl MetaSnapshotCommand {
+impl MetaSaveCommand {
     pub async fn build(&self) -> Result<Box<dyn Tool>, BoxedError> {
         let kvbackend = self.connection.build().await?;
         let output_dir = &self.output_dir;
@@ -327,3 +371,89 @@ impl Tool for MetaRestoreTool {
         }
     }
 }
+
+/// Explore metadata from metadata snapshot.
+#[derive(Debug, Default, Parser)]
+pub struct MetaInfoCommand {
+    /// The s3 config.
+    #[clap(flatten)]
+    s3_config: S3Config,
+    /// The name of the target snapshot file. we will add the file extension automatically.
+    #[clap(long, default_value = "metadata_snapshot")]
+    file_name: String,
+    /// The query string to filter the metadata.
+    #[clap(long, default_value = "*")]
+    inspect_key: String,
+    /// The limit of the metadata to query.
+    #[clap(long)]
+    limit: Option<usize>,
+}
+
+pub struct MetaInfoTool {
+    inner: ObjectStore,
+    source_file: String,
+    inspect_key: String,
+    limit: Option<usize>,
+}
+
+#[async_trait]
+impl Tool for MetaInfoTool {
+    async fn do_work(&self) -> std::result::Result<(), BoxedError> {
+        let result = MetadataSnapshotManager::info(
+            &self.inner,
+            &self.source_file,
+            &self.inspect_key,
+            self.limit,
+        )
+        .await
+        .map_err(BoxedError::new)?;
+        for item in result {
+            println!("{}", item);
+        }
+        Ok(())
+    }
+}
+
+impl MetaInfoCommand {
+    fn decide_object_store_root_for_local_store(
+        file_path: &str,
+    ) -> Result<(&str, &str), BoxedError> {
+        let path = Path::new(file_path);
+        let parent = path
+            .parent()
+            .and_then(|p| p.to_str())
+            .context(InvalidFilePathSnafu { msg: file_path })
+            .map_err(BoxedError::new)?;
+        let file_name = path
+            .file_name()
+            .and_then(|f| f.to_str())
+            .context(InvalidFilePathSnafu { msg: file_path })
+            .map_err(BoxedError::new)?;
+        let root = if parent.is_empty() { "." } else { parent };
+        Ok((root, file_name))
+    }
+
+    pub async fn build(&self) -> Result<Box<dyn Tool>, BoxedError> {
+        let object_store = self.s3_config.build("").map_err(BoxedError::new)?;
+        if let Some(store) = object_store {
+            let tool = MetaInfoTool {
+                inner: store,
+                source_file: self.file_name.clone(),
+                inspect_key: self.inspect_key.clone(),
+                limit: self.limit,
+            };
+            Ok(Box::new(tool))
+        } else {
+            let (root, file_name) =
+                Self::decide_object_store_root_for_local_store(&self.file_name)?;
+            let object_store = create_local_file_object_store(root)?;
+            let tool = MetaInfoTool {
+                inner: object_store,
+                source_file: file_name.to_string(),
+                inspect_key: self.inspect_key.clone(),
+                limit: self.limit,
+            };
+            Ok(Box::new(tool))
+        }
+    }
+}

src/client/src/client.rs

@@ -162,12 +162,23 @@ impl Client {
             .as_bytes() as usize
     }
 
-    pub fn make_flight_client(&self) -> Result<FlightClient> {
+    pub fn make_flight_client(
+        &self,
+        send_compression: bool,
+        accept_compression: bool,
+    ) -> Result<FlightClient> {
         let (addr, channel) = self.find_channel()?;
 
-        let client = FlightServiceClient::new(channel)
+        let mut client = FlightServiceClient::new(channel)
             .max_decoding_message_size(self.max_grpc_recv_message_size())
             .max_encoding_message_size(self.max_grpc_send_message_size());
+        // todo(hl): support compression methods.
+        if send_compression {
+            client = client.send_compressed(CompressionEncoding::Zstd);
+        }
+        if accept_compression {
+            client = client.accept_compressed(CompressionEncoding::Zstd);
+        }
 
         Ok(FlightClient { addr, client })
     }

src/client/src/client_manager.rs

@@ -49,7 +49,16 @@ impl NodeManager for NodeClients {
     async fn datanode(&self, datanode: &Peer) -> DatanodeRef {
         let client = self.get_client(datanode).await;
 
-        Arc::new(RegionRequester::new(client))
+        let ChannelConfig {
+            send_compression,
+            accept_compression,
+            ..
+        } = self.channel_manager.config();
+        Arc::new(RegionRequester::new(
+            client,
+            *send_compression,
+            *accept_compression,
+        ))
     }
 
     async fn flownode(&self, flownode: &Peer) -> FlownodeRef {

src/client/src/database.rs

@@ -287,7 +287,7 @@ impl Database {
         let mut request = tonic::Request::new(request);
         Self::put_hints(request.metadata_mut(), hints)?;
 
-        let mut client = self.client.make_flight_client()?;
+        let mut client = self.client.make_flight_client(false, false)?;
 
         let response = client.mut_inner().do_get(request).await.or_else(|e| {
             let tonic_code = e.code();
@@ -409,7 +409,7 @@ impl Database {
             MetadataValue::from_str(db_to_put).context(InvalidTonicMetadataValueSnafu)?,
         );
 
-        let mut client = self.client.make_flight_client()?;
+        let mut client = self.client.make_flight_client(false, false)?;
         let response = client.mut_inner().do_put(request).await?;
         let response = response
             .into_inner()

src/client/src/region.rs

@@ -46,6 +46,8 @@ use crate::{metrics, Client, Error};
 #[derive(Debug)]
 pub struct RegionRequester {
     client: Client,
+    send_compression: bool,
+    accept_compression: bool,
 }
 
 #[async_trait]
@@ -89,12 +91,18 @@ impl Datanode for RegionRequester {
 }
 
 impl RegionRequester {
-    pub fn new(client: Client) -> Self {
-        Self { client }
+    pub fn new(client: Client, send_compression: bool, accept_compression: bool) -> Self {
+        Self {
+            client,
+            send_compression,
+            accept_compression,
+        }
     }
 
     pub async fn do_get_inner(&self, ticket: Ticket) -> Result<SendableRecordBatchStream> {
-        let mut flight_client = self.client.make_flight_client()?;
+        let mut flight_client = self
+            .client
+            .make_flight_client(self.send_compression, self.accept_compression)?;
         let response = flight_client
             .mut_inner()
             .do_get(ticket)

src/cmd/src/cli.rs

@@ -146,6 +146,7 @@ mod tests {
         let output_dir = tempfile::tempdir().unwrap();
         let cli = cli::Command::parse_from([
             "cli",
+            "data",
             "export",
             "--addr",
             "127.0.0.1:4000",

src/cmd/src/frontend.rs

@@ -364,12 +364,16 @@ impl StartCommand {
 
         // frontend to datanode need not timeout.
         // Some queries are expected to take long time.
-        let channel_config = ChannelConfig {
+        let mut channel_config = ChannelConfig {
             timeout: None,
             tcp_nodelay: opts.datanode.client.tcp_nodelay,
             connect_timeout: Some(opts.datanode.client.connect_timeout),
             ..Default::default()
         };
+        if opts.grpc.flight_compression.transport_compression() {
+            channel_config.accept_compression = true;
+            channel_config.send_compression = true;
+        }
         let client = NodeClients::new(channel_config);
 
         let instance = FrontendBuilder::new(

src/common/function/src/adjust_flow.rs

@@ -1,90 +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 common_macro::admin_fn;
-use common_query::error::{
-    InvalidFuncArgsSnafu, MissingFlowServiceHandlerSnafu, Result, UnsupportedInputDataTypeSnafu,
-};
-use common_query::prelude::Signature;
-use datafusion::logical_expr::Volatility;
-use datatypes::value::{Value, ValueRef};
-use session::context::QueryContextRef;
-use snafu::ensure;
-use store_api::storage::ConcreteDataType;
-
-use crate::handlers::FlowServiceHandlerRef;
-use crate::helper::parse_catalog_flow;
-
-fn adjust_signature() -> Signature {
-    Signature::exact(
-        vec![
-            ConcreteDataType::string_datatype(), // flow name
-            ConcreteDataType::uint64_datatype(), // min_run_interval in seconds
-            ConcreteDataType::uint64_datatype(), // max filter number per query
-        ],
-        Volatility::Immutable,
-    )
-}
-
-#[admin_fn(
-    name = AdjustFlowFunction,
-    display_name = adjust_flow,
-    sig_fn = adjust_signature,
-    ret = uint64
-)]
-pub(crate) async fn adjust_flow(
-    flow_service_handler: &FlowServiceHandlerRef,
-    query_ctx: &QueryContextRef,
-    params: &[ValueRef<'_>],
-) -> Result<Value> {
-    ensure!(
-        params.len() == 3,
-        InvalidFuncArgsSnafu {
-            err_msg: format!(
-                "The length of the args is not correct, expect 3, have: {}",
-                params.len()
-            ),
-        }
-    );
-
-    let (flow_name, min_run_interval, max_filter_num) = match (params[0], params[1], params[2]) {
-        (
-            ValueRef::String(flow_name),
-            ValueRef::UInt64(min_run_interval),
-            ValueRef::UInt64(max_filter_num),
-        ) => (flow_name, min_run_interval, max_filter_num),
-        _ => {
-            return UnsupportedInputDataTypeSnafu {
-                function: "adjust_flow",
-                datatypes: params.iter().map(|v| v.data_type()).collect::<Vec<_>>(),
-            }
-            .fail();
-        }
-    };
-
-    let (catalog_name, flow_name) = parse_catalog_flow(flow_name, query_ctx)?;
-
-    let res = flow_service_handler
-        .adjust(
-            &catalog_name,
-            &flow_name,
-            min_run_interval,
-            max_filter_num as usize,
-            query_ctx.clone(),
-        )
-        .await?;
-    let affected_rows = res.affected_rows;
-
-    Ok(Value::from(affected_rows))
-}

src/common/function/src/admin.rs

@@ -26,7 +26,6 @@ use flush_compact_table::{CompactTableFunction, FlushTableFunction};
 use migrate_region::MigrateRegionFunction;
 use remove_region_follower::RemoveRegionFollowerFunction;
 
-use crate::adjust_flow::AdjustFlowFunction;
 use crate::flush_flow::FlushFlowFunction;
 use crate::function_registry::FunctionRegistry;
 
@@ -44,6 +43,5 @@ impl AdminFunction {
         registry.register_async(Arc::new(FlushTableFunction));
         registry.register_async(Arc::new(CompactTableFunction));
         registry.register_async(Arc::new(FlushFlowFunction));
-        registry.register_async(Arc::new(AdjustFlowFunction));
     }
 }

src/common/function/src/flush_flow.rs

@@ -12,19 +12,21 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+use common_error::ext::BoxedError;
 use common_macro::admin_fn;
 use common_query::error::{
-    InvalidFuncArgsSnafu, MissingFlowServiceHandlerSnafu, Result, UnsupportedInputDataTypeSnafu,
+    ExecuteSnafu, InvalidFuncArgsSnafu, MissingFlowServiceHandlerSnafu, Result,
+    UnsupportedInputDataTypeSnafu,
 };
 use common_query::prelude::Signature;
 use datafusion::logical_expr::Volatility;
 use datatypes::value::{Value, ValueRef};
 use session::context::QueryContextRef;
-use snafu::ensure;
+use snafu::{ensure, ResultExt};
+use sql::parser::ParserContext;
 use store_api::storage::ConcreteDataType;
 
 use crate::handlers::FlowServiceHandlerRef;
-use crate::helper::parse_catalog_flow;
 
 fn flush_signature() -> Signature {
     Signature::uniform(
@@ -45,6 +47,20 @@ pub(crate) async fn flush_flow(
     query_ctx: &QueryContextRef,
     params: &[ValueRef<'_>],
 ) -> Result<Value> {
+    let (catalog_name, flow_name) = parse_flush_flow(params, query_ctx)?;
+
+    let res = flow_service_handler
+        .flush(&catalog_name, &flow_name, query_ctx.clone())
+        .await?;
+    let affected_rows = res.affected_rows;
+
+    Ok(Value::from(affected_rows))
+}
+
+fn parse_flush_flow(
+    params: &[ValueRef<'_>],
+    query_ctx: &QueryContextRef,
+) -> Result<(String, String)> {
     ensure!(
         params.len() == 1,
         InvalidFuncArgsSnafu {
@@ -54,6 +70,7 @@ pub(crate) async fn flush_flow(
             ),
         }
     );
+
     let ValueRef::String(flow_name) = params[0] else {
         return UnsupportedInputDataTypeSnafu {
             function: "flush_flow",
@@ -61,14 +78,27 @@ pub(crate) async fn flush_flow(
         }
         .fail();
     };
-    let (catalog_name, flow_name) = parse_catalog_flow(flow_name, query_ctx)?;
+    let obj_name = ParserContext::parse_table_name(flow_name, query_ctx.sql_dialect())
+        .map_err(BoxedError::new)
+        .context(ExecuteSnafu)?;
 
-    let res = flow_service_handler
-        .flush(&catalog_name, &flow_name, query_ctx.clone())
-        .await?;
-    let affected_rows = res.affected_rows;
-
-    Ok(Value::from(affected_rows))
+    let (catalog_name, flow_name) = match &obj_name.0[..] {
+        [flow_name] => (
+            query_ctx.current_catalog().to_string(),
+            flow_name.value.clone(),
+        ),
+        [catalog, flow_name] => (catalog.value.clone(), flow_name.value.clone()),
+        _ => {
+            return InvalidFuncArgsSnafu {
+                err_msg: format!(
+                    "expect flow name to be <catalog>.<flow-name> or <flow-name>, actual: {}",
+                    obj_name
+                ),
+            }
+            .fail()
+        }
+    };
+    Ok((catalog_name, flow_name))
 }
 
 #[cfg(test)]
@@ -124,7 +154,10 @@ mod test {
             ("catalog.flow_name", ("catalog", "flow_name")),
         ];
         for (input, expected) in testcases.iter() {
-            let result = parse_catalog_flow(input, &QueryContext::arc()).unwrap();
+            let args = vec![*input];
+            let args = args.into_iter().map(ValueRef::String).collect::<Vec<_>>();
+
+            let result = parse_flush_flow(&args, &QueryContext::arc()).unwrap();
             assert_eq!(*expected, (result.0.as_str(), result.1.as_str()));
         }
     }

src/common/function/src/handlers.rs

@@ -87,15 +87,6 @@ pub trait FlowServiceHandler: Send + Sync {
         flow: &str,
         ctx: QueryContextRef,
     ) -> Result<api::v1::flow::FlowResponse>;
-
-    async fn adjust(
-        &self,
-        catalog: &str,
-        flow: &str,
-        min_run_interval_secs: u64,
-        max_filter_num_per_query: usize,
-        ctx: QueryContextRef,
-    ) -> Result<api::v1::flow::FlowResponse>;
 }
 
 pub type TableMutationHandlerRef = Arc<dyn TableMutationHandler>;

src/common/function/src/helper.rs

@@ -12,15 +12,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use common_error::ext::BoxedError;
-use common_query::error::{ExecuteSnafu, InvalidFuncArgsSnafu, InvalidInputTypeSnafu, Result};
+use common_query::error::{InvalidInputTypeSnafu, Result};
 use common_query::prelude::{Signature, TypeSignature, Volatility};
 use datatypes::prelude::ConcreteDataType;
 use datatypes::types::cast::cast;
 use datatypes::value::ValueRef;
-use session::context::QueryContextRef;
 use snafu::ResultExt;
-use sql::parser::ParserContext;
 
 /// Create a function signature with oneof signatures of interleaving two arguments.
 pub fn one_of_sigs2(args1: Vec<ConcreteDataType>, args2: Vec<ConcreteDataType>) -> Signature {
@@ -46,30 +43,3 @@ pub fn cast_u64(value: &ValueRef) -> Result<Option<u64>> {
         })
         .map(|v| v.as_u64())
 }
-
-pub fn parse_catalog_flow(
-    flow_name: &str,
-    query_ctx: &QueryContextRef,
-) -> Result<(String, String)> {
-    let obj_name = ParserContext::parse_table_name(flow_name, query_ctx.sql_dialect())
-        .map_err(BoxedError::new)
-        .context(ExecuteSnafu)?;
-
-    let (catalog_name, flow_name) = match &obj_name.0[..] {
-        [flow_name] => (
-            query_ctx.current_catalog().to_string(),
-            flow_name.value.clone(),
-        ),
-        [catalog, flow_name] => (catalog.value.clone(), flow_name.value.clone()),
-        _ => {
-            return InvalidFuncArgsSnafu {
-                err_msg: format!(
-                    "expect flow name to be <catalog>.<flow-name> or <flow-name>, actual: {}",
-                    obj_name
-                ),
-            }
-            .fail()
-        }
-    };
-    Ok((catalog_name, flow_name))
-}

src/common/function/src/lib.rs

@@ -15,7 +15,6 @@
 #![feature(let_chains)]
 #![feature(try_blocks)]
 
-mod adjust_flow;
 mod admin;
 mod flush_flow;
 mod macros;

src/common/function/src/state.rs

@@ -148,17 +148,6 @@ impl FunctionState {
             ) -> Result<api::v1::flow::FlowResponse> {
                 todo!()
             }
-
-            async fn adjust(
-                &self,
-                _catalog: &str,
-                _flow: &str,
-                _min_run_interval_secs: u64,
-                _max_filter_num_per_query: usize,
-                _ctx: QueryContextRef,
-            ) -> Result<api::v1::flow::FlowResponse> {
-                todo!()
-            }
         }
 
         Self {

src/common/grpc/src/channel_manager.rs

@@ -296,6 +296,8 @@ pub struct ChannelConfig {
     pub max_recv_message_size: ReadableSize,
     // Max gRPC sending(encoding) message size
     pub max_send_message_size: ReadableSize,
+    pub send_compression: bool,
+    pub accept_compression: bool,
 }
 
 impl Default for ChannelConfig {
@@ -316,6 +318,8 @@ impl Default for ChannelConfig {
             client_tls: None,
             max_recv_message_size: DEFAULT_MAX_GRPC_RECV_MESSAGE_SIZE,
             max_send_message_size: DEFAULT_MAX_GRPC_SEND_MESSAGE_SIZE,
+            send_compression: false,
+            accept_compression: false,
         }
     }
 }
@@ -566,6 +570,8 @@ mod tests {
                 client_tls: None,
                 max_recv_message_size: DEFAULT_MAX_GRPC_RECV_MESSAGE_SIZE,
                 max_send_message_size: DEFAULT_MAX_GRPC_SEND_MESSAGE_SIZE,
+                send_compression: false,
+                accept_compression: false,
             },
             default_cfg
         );
@@ -610,6 +616,8 @@ mod tests {
                 }),
                 max_recv_message_size: DEFAULT_MAX_GRPC_RECV_MESSAGE_SIZE,
                 max_send_message_size: DEFAULT_MAX_GRPC_SEND_MESSAGE_SIZE,
+                send_compression: false,
+                accept_compression: false,
             },
             cfg
         );

src/common/meta/src/snapshot.rs

@@ -14,6 +14,7 @@
 
 pub mod file;
 
+use std::borrow::Cow;
 use std::fmt::{Display, Formatter};
 use std::path::{Path, PathBuf};
 use std::time::Instant;
@@ -271,6 +272,49 @@ impl MetadataSnapshotManager {
 
         Ok((filename.to_string(), num_keyvalues as u64))
     }
+
+    fn format_output(key: Cow<'_, str>, value: Cow<'_, str>) -> String {
+        format!("{} => {}", key, value)
+    }
+
+    pub async fn info(
+        object_store: &ObjectStore,
+        file_path: &str,
+        query_str: &str,
+        limit: Option<usize>,
+    ) -> Result<Vec<String>> {
+        let path = Path::new(file_path);
+
+        let file_name = path
+            .file_name()
+            .and_then(|s| s.to_str())
+            .context(InvalidFilePathSnafu { file_path })?;
+
+        let filename = FileName::try_from(file_name)?;
+        let data = object_store
+            .read(file_path)
+            .await
+            .context(ReadObjectSnafu { file_path })?;
+        let document = Document::from_slice(&filename.extension.format, &data.to_bytes())?;
+        let metadata_content = document.into_metadata_content()?.values();
+        let mut results = Vec::with_capacity(limit.unwrap_or(256));
+        for kv in metadata_content {
+            let key_str = String::from_utf8_lossy(&kv.key);
+            if let Some(prefix) = query_str.strip_suffix('*') {
+                if key_str.starts_with(prefix) {
+                    let value_str = String::from_utf8_lossy(&kv.value);
+                    results.push(Self::format_output(key_str, value_str));
+                }
+            } else if key_str == query_str {
+                let value_str = String::from_utf8_lossy(&kv.value);
+                results.push(Self::format_output(key_str, value_str));
+            }
+            if results.len() == limit.unwrap_or(usize::MAX) {
+                break;
+            }
+        }
+        Ok(results)
+    }
 }
 
 #[cfg(test)]

src/common/meta/src/snapshot/file.rs

@@ -111,6 +111,11 @@ impl MetadataContent {
     pub fn into_iter(self) -> impl Iterator<Item = KeyValue> {
         self.values.into_iter()
     }
+
+    /// Returns the key-value pairs as a vector.
+    pub fn values(self) -> Vec<KeyValue> {
+        self.values
+    }
 }
 
 /// The key-value pair of the backup file.

src/flow/Cargo.toml

@@ -61,7 +61,6 @@ prost.workspace = true
 query.workspace = true
 rand.workspace = true
 serde.workspace = true
-serde_json.workspace = true
 servers.workspace = true
 session.workspace = true
 smallvec.workspace = true

src/flow/src/adapter/flownode_impl.rs

@@ -18,7 +18,7 @@ use std::sync::atomic::AtomicBool;
 use std::sync::Arc;
 
 use api::v1::flow::{
-    flow_request, AdjustFlow, CreateRequest, DropRequest, FlowRequest, FlowResponse, FlushFlow,
+    flow_request, CreateRequest, DropRequest, FlowRequest, FlowResponse, FlushFlow,
 };
 use api::v1::region::InsertRequests;
 use catalog::CatalogManager;
@@ -32,7 +32,6 @@ use common_telemetry::{error, info, trace, warn};
 use datatypes::value::Value;
 use futures::TryStreamExt;
 use itertools::Itertools;
-use serde::{Deserialize, Serialize};
 use session::context::QueryContextBuilder;
 use snafu::{ensure, IntoError, OptionExt, ResultExt};
 use store_api::storage::{RegionId, TableId};
@@ -823,25 +822,6 @@ impl common_meta::node_manager::Flownode for FlowDualEngine {
                     ..Default::default()
                 })
             }
-            Some(flow_request::Body::Adjust(AdjustFlow { flow_id, options })) => {
-                #[derive(Debug, Serialize, Deserialize)]
-                struct Options {
-                    min_run_interval_secs: u64,
-                    max_filter_num_per_query: usize,
-                }
-                let options: Options = serde_json::from_str(&options).with_context(|_| {
-                    common_meta::error::DeserializeFromJsonSnafu { input: options }
-                })?;
-                self.batching_engine
-                    .adjust_flow(
-                        flow_id.unwrap().id as u64,
-                        options.min_run_interval_secs,
-                        options.max_filter_num_per_query,
-                    )
-                    .await
-                    .map_err(to_meta_err(snafu::location!()))?;
-                Ok(Default::default())
-            }
             other => common_meta::error::InvalidFlowRequestBodySnafu { body: other }.fail(),
         }
     }
@@ -874,6 +854,93 @@ fn to_meta_err(
     }
 }
 
+#[async_trait::async_trait]
+impl common_meta::node_manager::Flownode for StreamingEngine {
+    async fn handle(&self, request: FlowRequest) -> MetaResult<FlowResponse> {
+        let query_ctx = request
+            .header
+            .and_then(|h| h.query_context)
+            .map(|ctx| ctx.into());
+        match request.body {
+            Some(flow_request::Body::Create(CreateRequest {
+                flow_id: Some(task_id),
+                source_table_ids,
+                sink_table_name: Some(sink_table_name),
+                create_if_not_exists,
+                expire_after,
+                comment,
+                sql,
+                flow_options,
+                or_replace,
+            })) => {
+                let source_table_ids = source_table_ids.into_iter().map(|id| id.id).collect_vec();
+                let sink_table_name = [
+                    sink_table_name.catalog_name,
+                    sink_table_name.schema_name,
+                    sink_table_name.table_name,
+                ];
+                let expire_after = expire_after.map(|e| e.value);
+                let args = CreateFlowArgs {
+                    flow_id: task_id.id as u64,
+                    sink_table_name,
+                    source_table_ids,
+                    create_if_not_exists,
+                    or_replace,
+                    expire_after,
+                    comment: Some(comment),
+                    sql: sql.clone(),
+                    flow_options,
+                    query_ctx,
+                };
+                let ret = self
+                    .create_flow(args)
+                    .await
+                    .map_err(BoxedError::new)
+                    .with_context(|_| CreateFlowSnafu { sql: sql.clone() })
+                    .map_err(to_meta_err(snafu::location!()))?;
+                METRIC_FLOW_TASK_COUNT.inc();
+                Ok(FlowResponse {
+                    affected_flows: ret
+                        .map(|id| greptime_proto::v1::FlowId { id: id as u32 })
+                        .into_iter()
+                        .collect_vec(),
+                    ..Default::default()
+                })
+            }
+            Some(flow_request::Body::Drop(DropRequest {
+                flow_id: Some(flow_id),
+            })) => {
+                self.remove_flow(flow_id.id as u64)
+                    .await
+                    .map_err(to_meta_err(snafu::location!()))?;
+                METRIC_FLOW_TASK_COUNT.dec();
+                Ok(Default::default())
+            }
+            Some(flow_request::Body::Flush(FlushFlow {
+                flow_id: Some(flow_id),
+            })) => {
+                let row = self
+                    .flush_flow_inner(flow_id.id as u64)
+                    .await
+                    .map_err(to_meta_err(snafu::location!()))?;
+                Ok(FlowResponse {
+                    affected_flows: vec![flow_id],
+                    affected_rows: row as u64,
+                    ..Default::default()
+                })
+            }
+            other => common_meta::error::InvalidFlowRequestBodySnafu { body: other }.fail(),
+        }
+    }
+
+    async fn handle_inserts(&self, request: InsertRequests) -> MetaResult<FlowResponse> {
+        self.handle_inserts_inner(request)
+            .await
+            .map(|_| Default::default())
+            .map_err(to_meta_err(snafu::location!()))
+    }
+}
+
 impl FlowEngine for StreamingEngine {
     async fn create_flow(&self, args: CreateFlowArgs) -> Result<Option<FlowId>, Error> {
         self.create_flow_inner(args).await

src/flow/src/batching_mode/engine.rs

@@ -42,6 +42,7 @@ use crate::error::{
     ExternalSnafu, FlowAlreadyExistSnafu, FlowNotFoundSnafu, TableNotFoundMetaSnafu,
     UnexpectedSnafu, UnsupportedSnafu,
 };
+use crate::metrics::METRIC_FLOW_ROWS;
 use crate::{CreateFlowArgs, Error, FlowId, TableName};
 
 /// Batching mode Engine, responsible for driving all the batching mode tasks
@@ -155,6 +156,10 @@ impl BatchingEngine {
                         let Some(expr) = &task.config.time_window_expr else {
                             continue;
                         };
+                        let row_cnt: usize = entry.iter().map(|rows| rows.rows.len()).sum();
+                        METRIC_FLOW_ROWS
+                            .with_label_values(&[&format!("{}-batching-in", task.config.flow_id)])
+                            .inc_by(row_cnt as u64);
                         let involved_time_windows = expr.handle_rows(entry.clone()).await?;
                         let mut state = task.state.write().unwrap();
                         state
@@ -388,20 +393,6 @@ impl BatchingEngine {
     pub async fn flow_exist_inner(&self, flow_id: FlowId) -> bool {
         self.tasks.read().await.contains_key(&flow_id)
     }
-
-    pub async fn adjust_flow(
-        &self,
-        flow_id: FlowId,
-        min_run_interval_secs: u64,
-        max_filter_num_per_query: usize,
-    ) -> Result<(), Error> {
-        let task = self.tasks.read().await.get(&flow_id).cloned();
-        let task = task.with_context(|| FlowNotFoundSnafu { id: flow_id })?;
-        debug!("Adjusting flow {flow_id} with min_run_interval_secs={} and max_filter_num_per_query={}", min_run_interval_secs, max_filter_num_per_query);
-        task.adjust(min_run_interval_secs, max_filter_num_per_query);
-
-        Ok(())
-    }
 }
 
 impl FlowEngine for BatchingEngine {

src/flow/src/batching_mode/frontend_client.rs

@@ -14,9 +14,8 @@
 
 //! Frontend client to run flow as batching task which is time-window-aware normal query triggered every tick set by user
 
-use std::collections::HashMap;
-use std::sync::{Arc, Mutex, Weak};
-use std::time::{Duration, Instant, SystemTime};
+use std::sync::{Arc, Weak};
+use std::time::SystemTime;
 
 use api::v1::greptime_request::Request;
 use api::v1::CreateTableExpr;
@@ -27,21 +26,20 @@ use common_meta::cluster::{NodeInfo, NodeInfoKey, Role};
 use common_meta::peer::Peer;
 use common_meta::rpc::store::RangeRequest;
 use common_query::Output;
-use common_telemetry::{debug, warn};
-use itertools::Itertools;
+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::task::BatchingTask;
 use crate::batching_mode::{
     DEFAULT_BATCHING_ENGINE_QUERY_TIMEOUT, FRONTEND_ACTIVITY_TIMEOUT, GRPC_CONN_TIMEOUT,
     GRPC_MAX_RETRIES,
 };
 use crate::error::{ExternalSnafu, InvalidRequestSnafu, NoAvailableFrontendSnafu, UnexpectedSnafu};
-use crate::metrics::METRIC_FLOW_BATCHING_ENGINE_GUESS_FE_LOAD;
-use crate::{Error, FlowAuthHeader, FlowId};
+use crate::{Error, FlowAuthHeader};
 
 /// Just like [`GrpcQueryHandler`] but use BoxedError
 ///
@@ -76,105 +74,6 @@ impl<
 
 type HandlerMutable = Arc<std::sync::Mutex<Option<Weak<dyn GrpcQueryHandlerWithBoxedError>>>>;
 
-/// Statistics about running query on this frontend from flownode
-#[derive(Debug, Default, Clone)]
-struct FrontendStat {
-    /// The query for flow id has been running since this timestamp
-    since: HashMap<FlowId, Instant>,
-    /// The average query time for each flow id
-    /// This is used to calculate the average query time for each flow id
-    past_query_avg: HashMap<FlowId, (usize, Duration)>,
-}
-
-#[derive(Debug, Default, Clone)]
-pub struct FrontendStats {
-    /// The statistics for each flow id
-    stats: Arc<Mutex<HashMap<String, FrontendStat>>>,
-}
-
-impl FrontendStats {
-    pub fn observe(&self, frontend_addr: &str, flow_id: FlowId) -> FrontendStatsGuard {
-        let mut stats = self.stats.lock().expect("Failed to lock frontend stats");
-        let stat = stats.entry(frontend_addr.to_string()).or_default();
-        stat.since.insert(flow_id, Instant::now());
-
-        FrontendStatsGuard {
-            stats: self.stats.clone(),
-            frontend_addr: frontend_addr.to_string(),
-            cur: flow_id,
-        }
-    }
-
-    /// return frontend addrs sorted by load, from lightest to heaviest
-    /// The load is calculated as the total average query time for each flow id plus running query's total running time elapsed
-    pub fn sort_by_load(&self) -> Vec<String> {
-        let stats = self.stats.lock().expect("Failed to lock frontend stats");
-        let fe_load_factor = stats
-            .iter()
-            .map(|(node_addr, stat)| {
-                // total expected avg running time for all currently running queries
-                let total_expect_avg_run_time = stat
-                    .since
-                    .keys()
-                    .map(|f| {
-                        let (count, total_duration) =
-                            stat.past_query_avg.get(f).unwrap_or(&(0, Duration::ZERO));
-                        if *count == 0 {
-                            0.0
-                        } else {
-                            total_duration.as_secs_f64() / *count as f64
-                        }
-                    })
-                    .sum::<f64>();
-                let total_cur_running_time = stat
-                    .since
-                    .values()
-                    .map(|since| since.elapsed().as_secs_f64())
-                    .sum::<f64>();
-                (
-                    node_addr.to_string(),
-                    total_expect_avg_run_time + total_cur_running_time,
-                )
-            })
-            .sorted_by(|(_, load_a), (_, load_b)| {
-                load_a
-                    .partial_cmp(load_b)
-                    .unwrap_or(std::cmp::Ordering::Equal)
-            })
-            .collect::<Vec<_>>();
-        debug!("Frontend load factor: {:?}", fe_load_factor);
-        for (node_addr, load) in &fe_load_factor {
-            METRIC_FLOW_BATCHING_ENGINE_GUESS_FE_LOAD
-                .with_label_values(&[&node_addr.to_string()])
-                .observe(*load);
-        }
-        fe_load_factor
-            .into_iter()
-            .map(|(addr, _)| addr)
-            .collect::<Vec<_>>()
-    }
-}
-
-pub struct FrontendStatsGuard {
-    stats: Arc<Mutex<HashMap<String, FrontendStat>>>,
-    frontend_addr: String,
-    cur: FlowId,
-}
-
-impl Drop for FrontendStatsGuard {
-    fn drop(&mut self) {
-        let mut stats = self.stats.lock().expect("Failed to lock frontend stats");
-        if let Some(stat) = stats.get_mut(&self.frontend_addr) {
-            if let Some(since) = stat.since.remove(&self.cur) {
-                let elapsed = since.elapsed();
-                let (count, total_duration) = stat.past_query_avg.entry(self.cur).or_default();
-                *count += 1;
-                *total_duration += elapsed;
-            }
-        }
-    }
-}
-
 /// A simple frontend client able to execute sql using grpc protocol
 ///
 /// This is for computation-heavy query which need to offload computation to frontend, lifting the load from flownode
@@ -184,7 +83,6 @@ pub enum FrontendClient {
         meta_client: Arc<MetaClient>,
         chnl_mgr: ChannelManager,
         auth: Option<FlowAuthHeader>,
-        fe_stats: FrontendStats,
     },
     Standalone {
         /// for the sake of simplicity still use grpc even in standalone mode
@@ -216,7 +114,6 @@ impl FrontendClient {
                 ChannelManager::with_config(cfg)
             },
             auth,
-            fe_stats: Default::default(),
         }
     }
 
@@ -286,7 +183,7 @@ impl FrontendClient {
 
     /// Get the frontend with recent enough(less than 1 minute from now) `last_activity_ts`
     /// and is able to process query
-    pub(crate) async fn get_random_active_frontend(
+    async fn get_random_active_frontend(
         &self,
         catalog: &str,
         schema: &str,
@@ -295,7 +192,6 @@ impl FrontendClient {
             meta_client: _,
             chnl_mgr,
             auth,
-            fe_stats,
         } = self
         else {
             return UnexpectedSnafu {
@@ -312,21 +208,8 @@ impl FrontendClient {
                 .duration_since(SystemTime::UNIX_EPOCH)
                 .unwrap()
                 .as_millis() as i64;
-            let node_addrs_by_load = fe_stats.sort_by_load();
-            // index+1 to load order asc, so that the lightest node has load 1 and non-existent node has load 0
-            let addr2load = node_addrs_by_load
-                .iter()
-                .enumerate()
-                .map(|(i, id)| (id.clone(), i + 1))
-                .collect::<HashMap<_, _>>();
-            // sort frontends by load, from lightest to heaviest
-            frontends.sort_by(|(_, a), (_, b)| {
-                // if not even in stats, treat as 0 load since never been queried
-                let load_a = addr2load.get(&a.peer.addr).unwrap_or(&0);
-                let load_b = addr2load.get(&b.peer.addr).unwrap_or(&0);
-                load_a.cmp(load_b)
-            });
-            debug!("Frontend nodes sorted by load: {:?}", frontends);
+            // shuffle the frontends to avoid always pick the same one
+            frontends.shuffle(&mut rng());
 
             // found node with maximum last_activity_ts
             for (_, node_info) in frontends
@@ -374,7 +257,6 @@ impl FrontendClient {
         create: CreateTableExpr,
         catalog: &str,
         schema: &str,
-        task: Option<&BatchingTask>,
     ) -> Result<u32, Error> {
         self.handle(
             Request::Ddl(api::v1::DdlRequest {
@@ -382,8 +264,7 @@ impl FrontendClient {
             }),
             catalog,
             schema,
-            None,
-            task,
+            &mut None,
         )
         .await
     }
@@ -394,31 +275,15 @@ impl FrontendClient {
         req: api::v1::greptime_request::Request,
         catalog: &str,
         schema: &str,
-        use_peer: Option<Peer>,
-        task: Option<&BatchingTask>,
+        peer_desc: &mut Option<PeerDesc>,
     ) -> Result<u32, Error> {
         match self {
-            FrontendClient::Distributed {
-                fe_stats, chnl_mgr, ..
-            } => {
-                let db = if let Some(peer) = use_peer {
-                    DatabaseWithPeer::new(
-                        Database::new(
-                            catalog,
-                            schema,
-                            Client::with_manager_and_urls(
-                                chnl_mgr.clone(),
-                                vec![peer.addr.clone()],
-                            ),
-                        ),
-                        peer,
-                    )
-                } else {
-                    self.get_random_active_frontend(catalog, schema).await?
-                };
+            FrontendClient::Distributed { .. } => {
+                let db = self.get_random_active_frontend(catalog, schema).await?;
 
-                let flow_id = task.map(|t| t.config.flow_id).unwrap_or_default();
-                let _guard = fe_stats.observe(&db.peer.addr, flow_id);
+                *peer_desc = Some(PeerDesc::Dist {
+                    peer: db.peer.clone(),
+                });
 
                 db.database
                     .handle_with_retry(req.clone(), GRPC_MAX_RETRIES)

src/flow/src/batching_mode/state.rs

@@ -32,7 +32,7 @@ use crate::batching_mode::MIN_REFRESH_DURATION;
 use crate::error::{DatatypesSnafu, InternalSnafu, TimeSnafu, UnexpectedSnafu};
 use crate::metrics::{
     METRIC_FLOW_BATCHING_ENGINE_QUERY_TIME_RANGE, METRIC_FLOW_BATCHING_ENGINE_QUERY_WINDOW_CNT,
-    METRIC_FLOW_BATCHING_ENGINE_STALLED_QUERY_WINDOW_CNT,
+    METRIC_FLOW_BATCHING_ENGINE_WAIT_TIME,
 };
 use crate::{Error, FlowId};
 
@@ -53,13 +53,6 @@ pub struct TaskState {
     pub(crate) shutdown_rx: oneshot::Receiver<()>,
     /// Task handle
     pub(crate) task_handle: Option<tokio::task::JoinHandle<()>>,
-    /// Slow Query metrics update task handle
-    pub(crate) slow_query_metric_task: Option<tokio::task::JoinHandle<()>>,
-
-    /// min run interval in seconds
-    pub(crate) min_run_interval: Option<u64>,
-    /// max filter number per query
-    pub(crate) max_filter_num: Option<usize>,
 }
 impl TaskState {
     pub fn new(query_ctx: QueryContextRef, shutdown_rx: oneshot::Receiver<()>) -> Self {
@@ -71,9 +64,6 @@ impl TaskState {
             exec_state: ExecState::Idle,
             shutdown_rx,
             task_handle: None,
-            slow_query_metric_task: None,
-            min_run_interval: None,
-            max_filter_num: None,
         }
     }
 
@@ -98,20 +88,34 @@ impl TaskState {
     pub fn get_next_start_query_time(
         &self,
         flow_id: FlowId,
-        _time_window_size: &Option<Duration>,
+        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)
-            .max(
-                self.min_run_interval
-                    .map(Duration::from_secs)
-                    .unwrap_or(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);
+
+        METRIC_FLOW_BATCHING_ENGINE_WAIT_TIME
+            .with_label_values(&[
+                flow_id.to_string().as_str(),
+                time_window_size
+                    .unwrap_or_default()
+                    .as_secs_f64()
+                    .to_string()
+                    .as_str(),
+            ])
+            .observe(next_duration.as_secs_f64());
 
         // if have dirty time window, execute immediately to clean dirty time window
-        if self.dirty_time_windows.windows.is_empty() {
+        /*if self.dirty_time_windows.windows.is_empty() {
             self.last_update_time + next_duration
         } else {
             debug!(
@@ -121,7 +125,9 @@ impl TaskState {
                 self.dirty_time_windows.windows
             );
             Instant::now()
-        }
+        }*/
+
+        self.last_update_time + next_duration
     }
 }
 
@@ -263,19 +269,9 @@ impl DirtyTimeWindows {
         self.windows = new_windows;
 
         METRIC_FLOW_BATCHING_ENGINE_QUERY_WINDOW_CNT
-            .with_label_values(&[
-                flow_id.to_string().as_str(),
-                format!("{}", window_size).as_str(),
-            ])
+            .with_label_values(&[flow_id.to_string().as_str()])
             .observe(to_be_query.len() as f64);
 
-        METRIC_FLOW_BATCHING_ENGINE_STALLED_QUERY_WINDOW_CNT
-            .with_label_values(&[
-                flow_id.to_string().as_str(),
-                format!("{}", window_size).as_str(),
-            ])
-            .observe(self.windows.len() as f64);
-
         let full_time_range = to_be_query
             .iter()
             .fold(chrono::Duration::zero(), |acc, (start, end)| {
@@ -287,10 +283,7 @@ impl DirtyTimeWindows {
             })
             .num_seconds() as f64;
         METRIC_FLOW_BATCHING_ENGINE_QUERY_TIME_RANGE
-            .with_label_values(&[
-                flow_id.to_string().as_str(),
-                format!("{}", window_size).as_str(),
-            ])
+            .with_label_values(&[flow_id.to_string().as_str()])
             .observe(full_time_range);
 
         let mut expr_lst = vec![];

src/flow/src/batching_mode/task.rs

@@ -62,8 +62,8 @@ use crate::error::{
 };
 use crate::metrics::{
     METRIC_FLOW_BATCHING_ENGINE_ERROR_CNT, METRIC_FLOW_BATCHING_ENGINE_QUERY_TIME,
-    METRIC_FLOW_BATCHING_ENGINE_REAL_TIME_SLOW_QUERY_CNT, METRIC_FLOW_BATCHING_ENGINE_SLOW_QUERY,
-    METRIC_FLOW_BATCHING_ENGINE_START_QUERY_CNT, METRIC_FLOW_ROWS,
+    METRIC_FLOW_BATCHING_ENGINE_SLOW_QUERY, METRIC_FLOW_BATCHING_ENGINE_START_QUERY_CNT,
+    METRIC_FLOW_ROWS,
 };
 use crate::{Error, FlowId};
 
@@ -83,14 +83,6 @@ pub struct TaskConfig {
     query_type: QueryType,
 }
 
-impl TaskConfig {
-    pub fn time_window_size(&self) -> Option<Duration> {
-        self.time_window_expr
-            .as_ref()
-            .and_then(|expr| *expr.time_window_size())
-    }
-}
-
 fn determine_query_type(query: &str, query_ctx: &QueryContextRef) -> Result<QueryType, Error> {
     let stmts =
         ParserContext::create_with_dialect(query, query_ctx.sql_dialect(), ParseOptions::default())
@@ -154,12 +146,6 @@ impl BatchingTask {
         })
     }
 
-    pub fn adjust(&self, min_run_interval_secs: u64, max_filter_num_per_query: usize) {
-        let mut state = self.state.write().unwrap();
-        state.min_run_interval = Some(min_run_interval_secs);
-        state.max_filter_num = Some(max_filter_num_per_query);
-    }
-
     /// mark time window range (now - expire_after, now) as dirty (or (0, now) if expire_after not set)
     ///
     /// useful for flush_flow to flush dirty time windows range
@@ -296,7 +282,7 @@ impl BatchingTask {
         let catalog = &self.config.sink_table_name[0];
         let schema = &self.config.sink_table_name[1];
         frontend_client
-            .create(expr.clone(), catalog, schema, Some(self))
+            .create(expr.clone(), catalog, schema)
             .await?;
         Ok(())
     }
@@ -344,53 +330,11 @@ impl BatchingTask {
             })?;
 
         let plan = expanded_plan;
-
-        let db = frontend_client
-            .get_random_active_frontend(catalog, schema)
-            .await?;
-        let peer_desc = db.peer.clone();
-
-        let (tx, mut rx) = oneshot::channel();
-        let peer_inner = peer_desc.clone();
-        let window_size_pretty = format!(
-            "{}s",
-            self.config.time_window_size().unwrap_or_default().as_secs()
-        );
-        let inner_window_size_pretty = window_size_pretty.clone();
-        let flow_id = self.config.flow_id;
-        let slow_query_metric_task = tokio::task::spawn(async move {
-            tokio::time::sleep(SLOW_QUERY_THRESHOLD).await;
-            METRIC_FLOW_BATCHING_ENGINE_REAL_TIME_SLOW_QUERY_CNT
-                .with_label_values(&[
-                    flow_id.to_string().as_str(),
-                    &peer_inner.to_string(),
-                    inner_window_size_pretty.as_str(),
-                ])
-                .add(1.0);
-            while rx.try_recv() == Err(TryRecvError::Empty) {
-                // sleep for a while before next update
-                tokio::time::sleep(MIN_REFRESH_DURATION).await;
-            }
-            METRIC_FLOW_BATCHING_ENGINE_REAL_TIME_SLOW_QUERY_CNT
-                .with_label_values(&[
-                    flow_id.to_string().as_str(),
-                    &peer_inner.to_string(),
-                    inner_window_size_pretty.as_str(),
-                ])
-                .sub(1.0);
-        });
-        self.state.write().unwrap().slow_query_metric_task = Some(slow_query_metric_task);
+        let mut peer_desc = None;
 
         let res = {
             let _timer = METRIC_FLOW_BATCHING_ENGINE_QUERY_TIME
-                .with_label_values(&[
-                    flow_id.to_string().as_str(),
-                    format!(
-                        "{}s",
-                        self.config.time_window_size().unwrap_or_default().as_secs()
-                    )
-                    .as_str(),
-                ])
+                .with_label_values(&[flow_id.to_string().as_str()])
                 .start_timer();
 
             // hack and special handling the insert logical plan
@@ -419,12 +363,10 @@ impl BatchingTask {
             };
 
             frontend_client
-                .handle(req, catalog, schema, Some(db.peer), Some(self))
+                .handle(req, catalog, schema, &mut peer_desc)
                 .await
         };
 
-        // signaling the slow query metric task to stop
-        let _ = tx.send(());
         let elapsed = instant.elapsed();
         if let Ok(affected_rows) = &res {
             debug!(
@@ -450,12 +392,7 @@ impl BatchingTask {
             METRIC_FLOW_BATCHING_ENGINE_SLOW_QUERY
                 .with_label_values(&[
                     flow_id.to_string().as_str(),
-                    &peer_desc.to_string(),
-                    format!(
-                        "{}s",
-                        self.config.time_window_size().unwrap_or_default().as_secs()
-                    )
-                    .as_str(),
+                    &peer_desc.unwrap_or_default().to_string(),
                 ])
                 .observe(elapsed.as_secs_f64());
         }
@@ -655,20 +592,19 @@ impl BatchingTask {
                 ),
             })?;
 
-        let expr = {
-            let mut state = self.state.write().unwrap();
-            let max_window_cnt = state
-                .max_filter_num
-                .unwrap_or(DirtyTimeWindows::MAX_FILTER_NUM);
-            state.dirty_time_windows.gen_filter_exprs(
+        let expr = self
+            .state
+            .write()
+            .unwrap()
+            .dirty_time_windows
+            .gen_filter_exprs(
                 &col_name,
                 Some(l),
                 window_size,
-                max_window_cnt,
+                DirtyTimeWindows::MAX_FILTER_NUM,
                 self.config.flow_id,
                 Some(self),
-            )?
-        };
+            )?;
 
         debug!(
             "Flow id={:?}, Generated filter expr: {:?}",

src/flow/src/metrics.rs

@@ -31,37 +31,29 @@ lazy_static! {
     pub static ref METRIC_FLOW_BATCHING_ENGINE_QUERY_TIME: HistogramVec = register_histogram_vec!(
         "greptime_flow_batching_engine_query_time_secs",
         "flow batching engine query time(seconds)",
-        &["flow_id", "time_window_granularity"],
+        &["flow_id"],
+        vec![0.0, 5., 10., 20., 40., 80., 160., 320., 640.,]
+    )
+    .unwrap();
+    pub static ref METRIC_FLOW_BATCHING_ENGINE_WAIT_TIME: HistogramVec = register_histogram_vec!(
+        "greptime_flow_batching_engine_wait_time_secs",
+        "flow batching engine wait time between query(seconds)",
+        &["flow_id", "time_window_size"],
         vec![0.0, 5., 10., 20., 40., 80., 160., 320., 640.,]
     )
     .unwrap();
     pub static ref METRIC_FLOW_BATCHING_ENGINE_SLOW_QUERY: HistogramVec = register_histogram_vec!(
         "greptime_flow_batching_engine_slow_query_secs",
-        "flow batching engine slow query(seconds), updated after query finished",
-        &["flow_id", "peer", "time_window_granularity"],
+        "flow batching engine slow query(seconds)",
+        &["flow_id", "peer"],
         vec![60., 2. * 60., 3. * 60., 5. * 60., 10. * 60.]
     )
     .unwrap();
-    pub static ref METRIC_FLOW_BATCHING_ENGINE_REAL_TIME_SLOW_QUERY_CNT: GaugeVec =
-        register_gauge_vec!(
-            "greptime_flow_batching_engine_real_time_slow_query_number",
-            "flow batching engine real time slow query number, updated in real time",
-            &["flow_id", "peer", "time_window_granularity"],
-        )
-        .unwrap();
-    pub static ref METRIC_FLOW_BATCHING_ENGINE_STALLED_QUERY_WINDOW_CNT: HistogramVec =
-        register_histogram_vec!(
-            "greptime_flow_batching_engine_stalled_query_window_cnt",
-            "flow batching engine stalled query time window count",
-            &["flow_id", "time_window_granularity"],
-            vec![0.0, 5., 10., 20., 40.]
-        )
-        .unwrap();
     pub static ref METRIC_FLOW_BATCHING_ENGINE_QUERY_WINDOW_CNT: HistogramVec =
         register_histogram_vec!(
             "greptime_flow_batching_engine_query_window_cnt",
             "flow batching engine query time window count",
-            &["flow_id", "time_window_granularity"],
+            &["flow_id"],
             vec![0.0, 5., 10., 20., 40.]
         )
         .unwrap();
@@ -69,15 +61,7 @@ lazy_static! {
         register_histogram_vec!(
             "greptime_flow_batching_engine_query_time_range_secs",
             "flow batching engine query time range(seconds)",
-            &["flow_id", "time_window_granularity"],
-            vec![60., 4. * 60., 16. * 60., 64. * 60., 256. * 60.]
-        )
-        .unwrap();
-    pub static ref METRIC_FLOW_BATCHING_ENGINE_GUESS_FE_LOAD: HistogramVec =
-        register_histogram_vec!(
-            "greptime_flow_batching_engine_guess_fe_load",
-            "flow batching engine guessed frontend load",
-            &["fe_addr"],
+            &["flow_id"],
             vec![60., 4. * 60., 16. * 60., 64. * 60., 256. * 60.]
         )
         .unwrap();

src/operator/src/flow.rs

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use api::v1::flow::{AdjustFlow, FlowRequestHeader};
+use api::v1::flow::FlowRequestHeader;
 use async_trait::async_trait;
 use common_error::ext::BoxedError;
 use common_function::handlers::FlowServiceHandler;
@@ -22,7 +22,6 @@ use common_query::error::Result;
 use common_telemetry::tracing_context::TracingContext;
 use futures::stream::FuturesUnordered;
 use futures::StreamExt;
-use serde_json::json;
 use session::context::QueryContextRef;
 use snafu::{OptionExt, ResultExt};
 
@@ -58,96 +57,9 @@ impl FlowServiceHandler for FlowServiceOperator {
     ) -> Result<api::v1::flow::FlowResponse> {
         self.flush_inner(catalog, flow, ctx).await
     }
-
-    async fn adjust(
-        &self,
-        catalog: &str,
-        flow: &str,
-        min_run_interval_secs: u64,
-        max_filter_num_per_query: usize,
-        ctx: QueryContextRef,
-    ) -> Result<api::v1::flow::FlowResponse> {
-        self.adjust_inner(
-            catalog,
-            flow,
-            min_run_interval_secs,
-            max_filter_num_per_query,
-            ctx,
-        )
-        .await
-    }
 }
 
 impl FlowServiceOperator {
-    async fn adjust_inner(
-        &self,
-        catalog: &str,
-        flow: &str,
-        min_run_interval_secs: u64,
-        max_filter_num_per_query: usize,
-        ctx: QueryContextRef,
-    ) -> Result<api::v1::flow::FlowResponse> {
-        let id = self
-            .flow_metadata_manager
-            .flow_name_manager()
-            .get(catalog, flow)
-            .await
-            .map_err(BoxedError::new)
-            .context(common_query::error::ExecuteSnafu)?
-            .context(common_meta::error::FlowNotFoundSnafu {
-                flow_name: format!("{}.{}", catalog, flow),
-            })
-            .map_err(BoxedError::new)
-            .context(common_query::error::ExecuteSnafu)?
-            .flow_id();
-
-        let all_flownode_peers = self
-            .flow_metadata_manager
-            .flow_route_manager()
-            .routes(id)
-            .await
-            .map_err(BoxedError::new)
-            .context(common_query::error::ExecuteSnafu)?;
-
-        // order of flownodes doesn't matter here
-        let all_flow_nodes = FuturesUnordered::from_iter(
-            all_flownode_peers
-                .iter()
-                .map(|(_key, peer)| self.node_manager.flownode(peer.peer())),
-        )
-        .collect::<Vec<_>>()
-        .await;
-
-        // TODO(discord9): use proper type for flow options
-        let options = json!({
-            "min_run_interval_secs": min_run_interval_secs,
-            "max_filter_num_per_query": max_filter_num_per_query,
-        });
-
-        for node in all_flow_nodes {
-            let _res = {
-                use api::v1::flow::{flow_request, FlowRequest};
-                let flush_req = FlowRequest {
-                    header: Some(FlowRequestHeader {
-                        tracing_context: TracingContext::from_current_span().to_w3c(),
-                        query_context: Some(
-                            common_meta::rpc::ddl::QueryContext::from(ctx.clone()).into(),
-                        ),
-                    }),
-                    body: Some(flow_request::Body::Adjust(AdjustFlow {
-                        flow_id: Some(api::v1::FlowId { id }),
-                        options: options.to_string(),
-                    })),
-                };
-                node.handle(flush_req)
-                    .await
-                    .map_err(BoxedError::new)
-                    .context(common_query::error::ExecuteSnafu)?
-            };
-        }
-        Ok(Default::default())
-    }
-
     /// Flush the flownodes according to the flow id.
     async fn flush_inner(
         &self,

src/plugins/src/cli.rs

@@ -13,20 +13,17 @@
 // limitations under the License.
 
 use clap::Parser;
-use cli::{
-    BenchTableMetadataCommand, ExportCommand, ImportCommand, MetaRestoreCommand,
-    MetaSnapshotCommand, Tool,
-};
+use cli::{BenchTableMetadataCommand, DataCommand, MetaCommand, Tool};
 use common_error::ext::BoxedError;
 
 #[derive(Parser)]
 pub enum SubCommand {
     // Attach(AttachCommand),
     Bench(BenchTableMetadataCommand),
-    Export(ExportCommand),
-    Import(ImportCommand),
-    MetaSnapshot(MetaSnapshotCommand),
-    MetaRestore(MetaRestoreCommand),
+    #[clap(subcommand)]
+    Data(DataCommand),
+    #[clap(subcommand)]
+    Meta(MetaCommand),
 }
 
 impl SubCommand {
@@ -34,10 +31,8 @@ impl SubCommand {
         match self {
             // SubCommand::Attach(cmd) => cmd.build().await,
             SubCommand::Bench(cmd) => cmd.build().await,
-            SubCommand::Export(cmd) => cmd.build().await,
-            SubCommand::Import(cmd) => cmd.build().await,
-            SubCommand::MetaSnapshot(cmd) => cmd.build().await,
-            SubCommand::MetaRestore(cmd) => cmd.build().await,
+            SubCommand::Data(cmd) => cmd.build().await,
+            SubCommand::Meta(cmd) => cmd.build().await,
         }
     }
 }

src/query/src/promql/planner.rs

@@ -2444,7 +2444,7 @@ impl PromPlanner {
         LogicalPlanBuilder::from(left)
             .alias(left_table_ref)
             .context(DataFusionPlanningSnafu)?
-            .join(
+            .join_detailed(
                 right,
                 JoinType::Inner,
                 (
@@ -2458,6 +2458,7 @@ impl PromPlanner {
                         .collect::<Vec<_>>(),
                 ),
                 None,
+                true,
             )
             .context(DataFusionPlanningSnafu)?
             .build()

src/servers/src/grpc.rs

@@ -139,11 +139,11 @@ impl GrpcOptions {
 #[serde(rename_all = "snake_case")]
 pub enum FlightCompression {
     /// Disable all compression in Arrow Flight service.
+    #[default]
     None,
     /// Enable only transport layer compression (zstd).
     Transport,
     /// Enable only payload compression (lz4)
-    #[default]
     ArrowIpc,
     /// Enable all compression.
     All,

tests/cases/standalone/common/promql/set_operation.result

@@ -675,11 +675,16 @@ insert into cache_miss_with_null_label values
 Affected Rows: 4
 
 -- SQLNESS SORT_RESULT 3 1
--- null!=null, so it will returns the empty set.
 tql eval (3, 4, '1s') cache_hit_with_null_label / (cache_miss_with_null_label + cache_hit_with_null_label);
 
-++
-++
++-------+------------+---------------------+---------------------------------------------------------------------------------------------------------------+
+| job   | null_label | ts                  | lhs.greptime_value / rhs.cache_miss_with_null_label.greptime_value + cache_hit_with_null_label.greptime_value |
++-------+------------+---------------------+---------------------------------------------------------------------------------------------------------------+
+| read  |            | 1970-01-01T00:00:03 | 0.5                                                                                                           |
+| read  |            | 1970-01-01T00:00:04 | 0.75                                                                                                          |
+| write |            | 1970-01-01T00:00:03 | 0.5                                                                                                           |
+| write |            | 1970-01-01T00:00:04 | 0.6666666666666666                                                                                            |
++-------+------------+---------------------+---------------------------------------------------------------------------------------------------------------+
 
 -- SQLNESS SORT_RESULT 3 1
 tql eval (3, 4, '1s') cache_hit_with_null_label / ignoring(null_label) (cache_miss_with_null_label + ignoring(null_label) cache_hit_with_null_label);

tests/cases/standalone/common/promql/set_operation.sql

@@ -325,7 +325,6 @@ insert into cache_miss_with_null_label values
     (4000, "write", null, 2.0);
 
 -- SQLNESS SORT_RESULT 3 1
--- null!=null, so it will returns the empty set.
 tql eval (3, 4, '1s') cache_hit_with_null_label / (cache_miss_with_null_label + cache_hit_with_null_label);
 
 -- SQLNESS SORT_RESULT 3 1