test: gc integration test (#7306)

* test: basic infra for set gc

Signed-off-by: discord9 <discord9@163.com>

* more stuff

Signed-off-by: discord9 <discord9@163.com>

* test: basic gc integration test

Signed-off-by: discord9 <discord9@163.com>

* rm unused

Signed-off-by: discord9 <discord9@163.com>

* clippy

Signed-off-by: discord9 <discord9@163.com>

* refactor: remove loader

Signed-off-by: discord9 <discord9@163.com>

* clippy

Signed-off-by: discord9 <discord9@163.com>

* fix: allow default endpoint

Signed-off-by: discord9 <discord9@163.com>

* filter out files

Signed-off-by: discord9 <discord9@163.com>

* chore: rm minio support

Signed-off-by: discord9 <discord9@163.com>

---------

Signed-off-by: discord9 <discord9@163.com>

tests-integration/src/cluster.rs

@@ -59,8 +59,10 @@ use hyper_util::rt::TokioIo;
 use meta_client::client::MetaClientBuilder;
 use meta_srv::cluster::MetaPeerClientRef;
 use meta_srv::discovery;
+use meta_srv::gc::GcSchedulerOptions;
 use meta_srv::metasrv::{Metasrv, MetasrvOptions, SelectorRef};
 use meta_srv::mocks::MockInfo;
+use mito2::gc::GcConfig;
 use object_store::config::ObjectStoreConfig;
 use rand::Rng;
 use servers::grpc::GrpcOptions;
@@ -103,6 +105,8 @@ pub struct GreptimeDbClusterBuilder {
     datanodes: Option<u32>,
     datanode_wal_config: DatanodeWalConfig,
     metasrv_wal_config: MetasrvWalConfig,
+    datanode_gc_config: GcConfig,
+    metasrv_gc_config: GcSchedulerOptions,
     shared_home_dir: Option<Arc<TempDir>>,
     meta_selector: Option<SelectorRef>,
 }
@@ -134,6 +138,8 @@ impl GreptimeDbClusterBuilder {
             datanodes: None,
             datanode_wal_config: DatanodeWalConfig::default(),
             metasrv_wal_config: MetasrvWalConfig::default(),
+            datanode_gc_config: GcConfig::default(),
+            metasrv_gc_config: GcSchedulerOptions::default(),
             shared_home_dir: None,
             meta_selector: None,
         }
@@ -169,6 +175,17 @@ impl GreptimeDbClusterBuilder {
         self
     }
 
+    #[must_use]
+    pub fn with_datanode_gc_config(mut self, datanode_gc_config: GcConfig) -> Self {
+        self.datanode_gc_config = datanode_gc_config;
+        self
+    }
+
+    pub fn with_metasrv_gc_config(mut self, metasrv_gc_config: GcSchedulerOptions) -> Self {
+        self.metasrv_gc_config = metasrv_gc_config;
+        self
+    }
+
     #[must_use]
     pub fn with_shared_home_dir(mut self, shared_home_dir: Arc<TempDir>) -> Self {
         self.shared_home_dir = Some(shared_home_dir);
@@ -205,6 +222,7 @@ impl GreptimeDbClusterBuilder {
                 server_addr: "127.0.0.1:3002".to_string(),
                 ..Default::default()
             },
+            gc: self.metasrv_gc_config.clone(),
             ..Default::default()
         };
 
@@ -279,6 +297,7 @@ impl GreptimeDbClusterBuilder {
                     vec![],
                     home_dir,
                     self.datanode_wal_config.clone(),
+                    self.datanode_gc_config.clone(),
                 )
             } else {
                 let (opts, guard) = create_tmp_dir_and_datanode_opts(
@@ -286,6 +305,7 @@ impl GreptimeDbClusterBuilder {
                     self.store_providers.clone().unwrap_or_default(),
                     &format!("{}-dn-{}", self.cluster_name, datanode_id),
                     self.datanode_wal_config.clone(),
+                    self.datanode_gc_config.clone(),
                 );
                 guards.push(guard);
 

tests-integration/src/standalone.rs

@@ -309,6 +309,7 @@ impl GreptimeDbStandaloneBuilder {
             store_types,
             &self.instance_name,
             self.datanode_wal_config.clone(),
+            Default::default(),
         );
 
         let kv_backend_config = KvBackendConfig::default();

tests-integration/src/test_util.rs

@@ -32,6 +32,7 @@ use common_wal::config::DatanodeWalConfig;
 use datanode::config::{DatanodeOptions, StorageConfig};
 use frontend::instance::Instance;
 use frontend::service_config::{MysqlOptions, PostgresOptions};
+use mito2::gc::GcConfig;
 use object_store::config::{
     AzblobConfig, FileConfig, GcsConfig, ObjectStoreConfig, OssConfig, S3Config,
 };
@@ -145,6 +146,7 @@ fn s3_test_config() -> S3Config {
             secret_access_key: env::var("GT_S3_ACCESS_KEY").unwrap().into(),
             bucket: env::var("GT_S3_BUCKET").unwrap(),
             region: Some(env::var("GT_S3_REGION").unwrap()),
+            endpoint: env::var("GT_S3_ENDPOINT_URL").ok(),
             ..Default::default()
         },
         ..Default::default()
@@ -163,7 +165,7 @@ pub fn get_test_store_config(store_type: &StorageType) -> (ObjectStoreConfig, Te
                     scope: env::var("GT_GCS_SCOPE").unwrap(),
                     credential_path: env::var("GT_GCS_CREDENTIAL_PATH").unwrap().into(),
                     credential: env::var("GT_GCS_CREDENTIAL").unwrap().into(),
-                    endpoint: env::var("GT_GCS_ENDPOINT").unwrap(),
+                    endpoint: env::var("GT_GCS_ENDPOINT").unwrap_or_default(),
                 },
                 ..Default::default()
             };
@@ -297,6 +299,7 @@ pub fn create_tmp_dir_and_datanode_opts(
     store_provider_types: Vec<StorageType>,
     name: &str,
     wal_config: DatanodeWalConfig,
+    gc_config: GcConfig,
 ) -> (DatanodeOptions, TestGuard) {
     let home_tmp_dir = create_temp_dir(&format!("gt_data_{name}"));
     let home_dir = home_tmp_dir.path().to_str().unwrap().to_string();
@@ -314,7 +317,13 @@ pub fn create_tmp_dir_and_datanode_opts(
         store_providers.push(store);
         storage_guards.push(StorageGuard(data_tmp_dir))
     }
-    let opts = create_datanode_opts(default_store, store_providers, home_dir, wal_config);
+    let opts = create_datanode_opts(
+        default_store,
+        store_providers,
+        home_dir,
+        wal_config,
+        gc_config,
+    );
 
     (
         opts,
@@ -330,7 +339,18 @@ pub(crate) fn create_datanode_opts(
     providers: Vec<ObjectStoreConfig>,
     home_dir: String,
     wal_config: DatanodeWalConfig,
+    gc_config: GcConfig,
 ) -> DatanodeOptions {
+    let region_engine = DatanodeOptions::default()
+        .region_engine
+        .into_iter()
+        .map(|mut v| {
+            if let datanode::config::RegionEngineConfig::Mito(mito_config) = &mut v {
+                mito_config.gc = gc_config.clone();
+            }
+            v
+        })
+        .collect();
     DatanodeOptions {
         node_id: Some(0),
         require_lease_before_startup: true,
@@ -343,6 +363,7 @@ pub(crate) fn create_datanode_opts(
             .with_bind_addr(PEER_PLACEHOLDER_ADDR)
             .with_server_addr(PEER_PLACEHOLDER_ADDR),
         wal: wal_config,
+        region_engine,
         ..Default::default()
     }
 }

tests-integration/src/tests.rs

@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+mod gc;
 mod instance_kafka_wal_test;
 mod instance_noop_wal_test;
 mod instance_test;

tests-integration/src/tests/gc.rs

@@ -0,0 +1,262 @@
+// 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::collections::{HashMap, HashSet};
+use std::time::Duration;
+
+use common_meta::key::TableMetadataManagerRef;
+use common_procedure::ProcedureWithId;
+use common_telemetry::info;
+use common_test_util::recordbatch::check_output_stream;
+use futures::TryStreamExt as _;
+use itertools::Itertools;
+use meta_srv::gc::{BatchGcProcedure, GcSchedulerOptions, Region2Peers};
+use mito2::gc::GcConfig;
+use store_api::storage::RegionId;
+use table::metadata::TableId;
+
+use crate::cluster::GreptimeDbClusterBuilder;
+use crate::test_util::{StorageType, TempDirGuard, get_test_store_config};
+use crate::tests::test_util::{MockInstanceBuilder, TestContext, execute_sql, wait_procedure};
+
+/// Helper function to get table route information for GC procedure
+async fn get_table_route(
+    table_metadata_manager: &TableMetadataManagerRef,
+    table_id: TableId,
+) -> (Region2Peers, Vec<RegionId>) {
+    // Get physical table route
+    let (_, physical_table_route) = table_metadata_manager
+        .table_route_manager()
+        .get_physical_table_route(table_id)
+        .await
+        .unwrap();
+
+    let mut region_routes = Region2Peers::new();
+    let mut regions = Vec::new();
+
+    // Convert region routes to Region2Peers format
+    for region_route in physical_table_route.region_routes {
+        let region_id = region_route.region.id;
+        let leader_peer = region_route.leader_peer.clone().unwrap();
+        let follower_peers = region_route.follower_peers.clone();
+
+        region_routes.insert(region_id, (leader_peer, follower_peers));
+        regions.push(region_id);
+    }
+
+    (region_routes, regions)
+}
+
+/// Helper function to list all SST files
+async fn list_sst_files(test_context: &TestContext) -> HashSet<String> {
+    let mut sst_files = HashSet::new();
+
+    for datanode in test_context.datanodes().values() {
+        let region_server = datanode.region_server();
+        let mito = region_server.mito_engine().unwrap();
+        let all_files = mito
+            .all_ssts_from_storage()
+            .try_collect::<Vec<_>>()
+            .await
+            .unwrap()
+            .into_iter()
+            .map(|e| e.file_path)
+            .collect_vec();
+        sst_files.extend(all_files);
+    }
+
+    sst_files
+}
+
+async fn distributed_with_gc(store_type: &StorageType) -> (TestContext, TempDirGuard) {
+    common_telemetry::init_default_ut_logging();
+    let test_name = uuid::Uuid::new_v4().to_string();
+    let (store_config, guard) = get_test_store_config(store_type);
+
+    let builder = GreptimeDbClusterBuilder::new(&test_name)
+        .await
+        .with_metasrv_gc_config(GcSchedulerOptions {
+            enable: true,
+            ..Default::default()
+        })
+        .with_datanode_gc_config(GcConfig {
+            enable: true,
+            // set lingering time to zero for test speedup
+            lingering_time: Some(Duration::ZERO),
+            ..Default::default()
+        })
+        .with_store_config(store_config);
+    (
+        TestContext::new(MockInstanceBuilder::Distributed(builder)).await,
+        guard,
+    )
+}
+
+#[tokio::test]
+async fn test_gc_basic_different_store() {
+    common_telemetry::init_default_ut_logging();
+    let store_type = StorageType::build_storage_types_based_on_env();
+    for store in store_type {
+        if store == StorageType::File {
+            continue; // no point in test gc in fs storage
+        }
+        info!("Running GC test with storage type: {}", store);
+        test_gc_basic(&store).await;
+    }
+}
+
+async fn test_gc_basic(store_type: &StorageType) {
+    let (test_context, _guard) = distributed_with_gc(store_type).await;
+    let instance = test_context.frontend();
+    let metasrv = test_context.metasrv();
+
+    // Step 1: Create table with append_mode to easily generate multiple files
+    let create_table_sql = r#"
+        CREATE TABLE test_gc_table (
+            ts TIMESTAMP TIME INDEX,
+            val DOUBLE,
+            host STRING
+        ) WITH (append_mode = 'true')
+    "#;
+    execute_sql(&instance, create_table_sql).await;
+
+    // Step 2: Generate SST files by inserting data and flushing multiple times
+    for i in 0..4 {
+        let insert_sql = format!(
+            r#"
+            INSERT INTO test_gc_table (ts, val, host) VALUES
+            ('2023-01-0{} 10:00:00', {}, 'host{}'),
+            ('2023-01-0{} 11:00:00', {}, 'host{}'),
+            ('2023-01-0{} 12:00:00', {}, 'host{}')
+            "#,
+            i + 1,
+            10.0 + i as f64,
+            i,
+            i + 1,
+            20.0 + i as f64,
+            i,
+            i + 1,
+            30.0 + i as f64,
+            i
+        );
+        execute_sql(&instance, &insert_sql).await;
+
+        // Flush the table to create SST files
+        let flush_sql = "ADMIN FLUSH_TABLE('test_gc_table')";
+        execute_sql(&instance, flush_sql).await;
+    }
+
+    // Step 3: Get table information
+    let table = instance
+        .catalog_manager()
+        .table("greptime", "public", "test_gc_table", None)
+        .await
+        .unwrap()
+        .unwrap();
+    let table_id = table.table_info().table_id();
+
+    // List SST files before compaction (for verification)
+    let sst_files_before_compaction = list_sst_files(&test_context).await;
+    info!(
+        "SST files before compaction: {:?}",
+        sst_files_before_compaction
+    );
+    assert_eq!(sst_files_before_compaction.len(), 4); // 4 files from 4 flushes
+
+    // Step 4: Trigger compaction to create garbage SST files
+    let compact_sql = "ADMIN COMPACT_TABLE('test_gc_table')";
+    execute_sql(&instance, compact_sql).await;
+
+    // Wait for compaction to complete
+    tokio::time::sleep(Duration::from_secs(2)).await;
+
+    // List SST files after compaction (should have both old and new files)
+    let sst_files_after_compaction = list_sst_files(&test_context).await;
+    info!(
+        "SST files after compaction: {:?}",
+        sst_files_after_compaction
+    );
+    assert_eq!(sst_files_after_compaction.len(), 5); // 4 old + 1 new
+
+    // Step 5: Get table route information for GC procedure
+    let (region_routes, regions) =
+        get_table_route(metasrv.table_metadata_manager(), table_id).await;
+
+    // Step 6: Create and execute BatchGcProcedure
+    let procedure = BatchGcProcedure::new(
+        metasrv.mailbox().clone(),
+        metasrv.options().grpc.server_addr.clone(),
+        regions.clone(),
+        false, // full_file_listing
+        region_routes,
+        HashMap::new(),          // related_regions (empty for this simple test)
+        Duration::from_secs(10), // timeout
+    );
+
+    // Submit the procedure to the procedure manager
+    let procedure_with_id = ProcedureWithId::with_random_id(Box::new(procedure));
+    let procedure_id = procedure_with_id.id;
+
+    let _watcher = metasrv
+        .procedure_manager()
+        .submit(procedure_with_id)
+        .await
+        .unwrap();
+
+    // Wait for the procedure to complete
+    wait_procedure(metasrv.procedure_manager(), procedure_id).await;
+
+    // Step 7: Verify GC results
+    let sst_files_after_gc = list_sst_files(&test_context).await;
+    info!("SST files after GC: {:?}", sst_files_after_gc);
+    assert_eq!(sst_files_after_gc.len(), 1); // Only the compacted file should remain after gc
+
+    // Verify that data is still accessible
+    let count_sql = "SELECT COUNT(*) FROM test_gc_table";
+    let count_output = execute_sql(&instance, count_sql).await;
+    let expected = r#"
++----------+
+| count(*) |
++----------+
+| 12       |
++----------+"#
+        .trim();
+    check_output_stream(count_output.data, expected).await;
+
+    let select_sql = "SELECT * FROM test_gc_table ORDER BY ts";
+    let select_output = execute_sql(&instance, select_sql).await;
+    let expected = r#"
++---------------------+------+-------+
+| ts                  | val  | host  |
++---------------------+------+-------+
+| 2023-01-01T10:00:00 | 10.0 | host0 |
+| 2023-01-01T11:00:00 | 20.0 | host0 |
+| 2023-01-01T12:00:00 | 30.0 | host0 |
+| 2023-01-02T10:00:00 | 11.0 | host1 |
+| 2023-01-02T11:00:00 | 21.0 | host1 |
+| 2023-01-02T12:00:00 | 31.0 | host1 |
+| 2023-01-03T10:00:00 | 12.0 | host2 |
+| 2023-01-03T11:00:00 | 22.0 | host2 |
+| 2023-01-03T12:00:00 | 32.0 | host2 |
+| 2023-01-04T10:00:00 | 13.0 | host3 |
+| 2023-01-04T11:00:00 | 23.0 | host3 |
+| 2023-01-04T12:00:00 | 33.0 | host3 |
++---------------------+------+-------+"#
+        .trim();
+    check_output_stream(select_output.data, expected).await;
+
+    // TODO: Add more specific assertions once we have proper file system access
+    // For now, the test passes if the procedure executes without errors
+    info!("GC test completed successfully");
+}

tests-integration/src/tests/instance_noop_wal_test.rs

@@ -19,7 +19,7 @@ use common_wal::config::{DatanodeWalConfig, MetasrvWalConfig};
 
 use crate::cluster::GreptimeDbClusterBuilder;
 use crate::tests::test_util::{
-    MockInstance, MockInstanceBuilder, RebuildableMockInstance, TestContext, execute_sql,
+    MockInstanceBuilder, RebuildableMockInstance, TestContext, execute_sql,
 };
 
 pub(crate) async fn distributed_with_noop_wal() -> TestContext {

tests-integration/src/tests/reconcile_table.rs

@@ -24,8 +24,8 @@ use table::table_reference::TableReference;
 
 use crate::cluster::GreptimeDbClusterBuilder;
 use crate::tests::test_util::{
-    MockInstance, MockInstanceBuilder, RebuildableMockInstance, TestContext, dump_kvbackend,
-    execute_sql, restore_kvbackend, try_execute_sql, wait_procedure,
+    MockInstanceBuilder, RebuildableMockInstance, TestContext, dump_kvbackend, execute_sql,
+    restore_kvbackend, try_execute_sql, wait_procedure,
 };
 
 const CREATE_MONITOR_TABLE_SQL: &str = r#"

tests-integration/src/tests/test_util.rs

@@ -12,11 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+use std::collections::HashMap;
 use std::env;
 use std::sync::Arc;
 
 use async_trait::async_trait;
 use client::OutputData;
+use common_meta::DatanodeId;
 use common_meta::kv_backend::KvBackendRef;
 use common_meta::range_stream::{DEFAULT_PAGE_SIZE, PaginationStream};
 use common_meta::rpc::KeyValue;
@@ -30,6 +32,7 @@ use common_test_util::find_workspace_path;
 use common_wal::config::kafka::common::{KafkaConnectionConfig, KafkaTopicConfig};
 use common_wal::config::kafka::{DatanodeKafkaConfig, MetasrvKafkaConfig};
 use common_wal::config::{DatanodeWalConfig, MetasrvWalConfig};
+use datanode::datanode::Datanode;
 use frontend::error::Result;
 use frontend::instance::Instance;
 use futures::TryStreamExt;
@@ -95,6 +98,13 @@ impl MockInstanceImpl {
             MockInstanceImpl::Distributed(instance) => &instance.metasrv,
         }
     }
+
+    pub(crate) fn datanodes(&self) -> &HashMap<DatanodeId, Datanode> {
+        match self {
+            MockInstanceImpl::Standalone(_) => unreachable!(),
+            MockInstanceImpl::Distributed(instance) => &instance.datanode_instances,
+        }
+    }
 }
 
 impl MockInstance for MockInstanceImpl {
@@ -185,6 +195,14 @@ impl TestContext {
     pub(crate) fn metasrv(&self) -> &Arc<Metasrv> {
         self.instance.as_ref().unwrap().metasrv()
     }
+
+    pub(crate) fn frontend(&self) -> Arc<Instance> {
+        self.instance.as_ref().unwrap().frontend()
+    }
+
+    pub(crate) fn datanodes(&self) -> &HashMap<DatanodeId, Datanode> {
+        self.instance.as_ref().unwrap().datanodes()
+    }
 }
 
 #[async_trait::async_trait]