fix: Separate L0 and Mix trigger interval (#37190)

See also: #37108

- Add MixCompactionTriggerInterval, default 60s
- Add L0CompactionTriggerInterval, default 10s
- Export Single related compaction configs
- Raise SingleCompactionDeltaLogMaxSize from 2MB to 16MB

---------

Signed-off-by: yangxuan <xuan.yang@zilliz.com>

configs/milvus.yaml

@@ -63,7 +63,7 @@ etcd:
     password:  # password for etcd authentication
 
 metastore:
-  type: etcd # Default value: etcd, Valid values: [etcd, tikv] 
+  type: etcd # Default value: etcd, Valid values: [etcd, tikv]
   snapshot:
     ttl: 86400 # snapshot ttl in seconds
     reserveTime: 3600 # snapshot reserve time in seconds
@@ -564,6 +564,23 @@ dataCoord:
     maxParallelTaskNum: 10
     dropTolerance: 86400 # Compaction task will be cleaned after finish longer than this time(in seconds)
     gcInterval: 1800 # The time interval in seconds for compaction gc
+    mix:
+      triggerInterval: 60 # The time interval in seconds to trigger mix compaction
+    levelzero:
+      triggerInterval: 10 # The time interval in seconds for trigger L0 compaction
+      forceTrigger:
+        minSize: 8388608 # The minmum size in bytes to force trigger a LevelZero Compaction, default as 8MB
+        maxSize: 67108864 # The maxmum size in bytes to force trigger a LevelZero Compaction, default as 64MB
+        deltalogMinNum: 10 # The minimum number of deltalog files to force trigger a LevelZero Compaction
+        deltalogMaxNum: 30 # The maxmum number of deltalog files to force trigger a LevelZero Compaction, default as 30
+    single:
+      ratio:
+        threshold: 0.2 # The ratio threshold of a segment to trigger a single compaction, default as 0.2
+      deltalog:
+        maxsize: 16777216 # The deltalog size of a segment to trigger a single compaction, default as 16MB
+        maxnum: 200 # The deltalog count of a segment to trigger a compaction, default as 200
+      expiredlog:
+        maxsize: 10485760 # The expired log size of a segment to trigger a compaction, default as 10MB
     clustering:
       enable: true # Enable clustering compaction
       autoEnable: false # Enable auto clustering compaction
@@ -579,12 +596,6 @@ dataCoord:
       minClusterSizeRatio: 0.01 # minimum cluster size / avg size in Kmeans train
       maxClusterSizeRatio: 10 # maximum cluster size / avg size in Kmeans train
       maxClusterSize: 5g # maximum cluster size in Kmeans train
-    levelzero:
-      forceTrigger:
-        minSize: 8388608 # The minmum size in bytes to force trigger a LevelZero Compaction, default as 8MB
-        maxSize: 67108864 # The maxmum size in bytes to force trigger a LevelZero Compaction, default as 64MB
-        deltalogMinNum: 10 # The minimum number of deltalog files to force trigger a LevelZero Compaction
-        deltalogMaxNum: 30 # The maxmum number of deltalog files to force trigger a LevelZero Compaction, default as 30
   syncSegmentsInterval: 300 # The time interval for regularly syncing segments
   enableGarbageCollection: true # Switch value to control if to enable garbage collection to clear the discarded data in MinIO or S3 service.
   gc:
@@ -1077,4 +1088,4 @@ knowhere:
       pq_code_budget_gb_ratio: 0.125 # Size limit on the PQ code (compared with raw data)
       search_cache_budget_gb_ratio: 0.1 # Ratio of cached node numbers to raw data
     search: # Diskann search params
-      beam_width_ratio: 4.0 # Ratio between the maximum number of IO requests per search iteration and CPU number.
+      beam_width_ratio: 4.0 # Ratio between the maximum number of IO requests per search iteration and CPU number

internal/datacoord/compaction_trigger.go

@@ -109,7 +109,7 @@ func newCompactionTrigger(
 }
 
 func (t *compactionTrigger) start() {
-	t.globalTrigger = time.NewTicker(Params.DataCoordCfg.GlobalCompactionInterval.GetAsDuration(time.Second))
+	t.globalTrigger = time.NewTicker(Params.DataCoordCfg.MixCompactionTriggerInterval.GetAsDuration(time.Second))
 	t.closeWaiter.Add(2)
 	go func() {
 		defer logutil.LogPanic()
@@ -132,8 +132,6 @@ func (t *compactionTrigger) start() {
 				default:
 					// no need to handle err in handleSignal
 					t.handleSignal(signal)
-					// shouldn't reset, otherwise a frequent flushed collection will affect other collections
-					// t.globalTrigger.Reset(Params.DataCoordCfg.GlobalCompactionInterval)
 				}
 			}
 		}

internal/datacoord/compaction_trigger_v2.go

@@ -108,11 +108,11 @@ func (m *CompactionTriggerManager) startLoop() {
 	defer logutil.LogPanic()
 	defer m.closeWg.Done()
 
-	l0Ticker := time.NewTicker(Params.DataCoordCfg.GlobalCompactionInterval.GetAsDuration(time.Second))
+	l0Ticker := time.NewTicker(Params.DataCoordCfg.L0CompactionTriggerInterval.GetAsDuration(time.Second))
 	defer l0Ticker.Stop()
 	clusteringTicker := time.NewTicker(Params.DataCoordCfg.ClusteringCompactionTriggerInterval.GetAsDuration(time.Second))
 	defer clusteringTicker.Stop()
-	singleTicker := time.NewTicker(Params.DataCoordCfg.GlobalCompactionInterval.GetAsDuration(time.Second))
+	singleTicker := time.NewTicker(Params.DataCoordCfg.MixCompactionTriggerInterval.GetAsDuration(time.Second))
 	defer singleTicker.Stop()
 	log.Info("Compaction trigger manager start")
 	for {

pkg/util/paramtable/component_param.go

@@ -3202,25 +3202,29 @@ type dataCoordConfig struct {
 	CompactionTaskPrioritizer   ParamItem `refreshable:"true"`
 	CompactionTaskQueueCapacity ParamItem `refreshable:"false"`
 
-	CompactionRPCTimeout              ParamItem `refreshable:"true"`
+	CompactionRPCTimeout             ParamItem `refreshable:"true"`
-	CompactionMaxParallelTasks        ParamItem `refreshable:"true"`
+	CompactionMaxParallelTasks       ParamItem `refreshable:"true"`
-	CompactionWorkerParalleTasks      ParamItem `refreshable:"true"`
+	CompactionWorkerParalleTasks     ParamItem `refreshable:"true"`
-	MinSegmentToMerge                 ParamItem `refreshable:"true"`
+	MinSegmentToMerge                ParamItem `refreshable:"true"`
-	MaxSegmentToMerge                 ParamItem `refreshable:"true"`
+	MaxSegmentToMerge                ParamItem `refreshable:"true"`
-	SegmentSmallProportion            ParamItem `refreshable:"true"`
+	SegmentSmallProportion           ParamItem `refreshable:"true"`
-	SegmentCompactableProportion      ParamItem `refreshable:"true"`
+	SegmentCompactableProportion     ParamItem `refreshable:"true"`
-	SegmentExpansionRate              ParamItem `refreshable:"true"`
+	SegmentExpansionRate             ParamItem `refreshable:"true"`
-	CompactionTimeoutInSeconds        ParamItem `refreshable:"true"`
+	CompactionTimeoutInSeconds       ParamItem `refreshable:"true"`
-	CompactionDropToleranceInSeconds  ParamItem `refreshable:"true"`
+	CompactionDropToleranceInSeconds ParamItem `refreshable:"true"`
-	CompactionGCIntervalInSeconds     ParamItem `refreshable:"true"`
+	CompactionGCIntervalInSeconds    ParamItem `refreshable:"true"`
-	CompactionCheckIntervalInSeconds  ParamItem `refreshable:"false"`
+	CompactionCheckIntervalInSeconds ParamItem `refreshable:"false"`
+	MixCompactionTriggerInterval     ParamItem `refreshable:"false"`
+	L0CompactionTriggerInterval      ParamItem `refreshable:"false"`
+	GlobalCompactionInterval         ParamItem `refreshable:"false"`
+
 	SingleCompactionRatioThreshold    ParamItem `refreshable:"true"`
 	SingleCompactionDeltaLogMaxSize   ParamItem `refreshable:"true"`
 	SingleCompactionExpiredLogMaxSize ParamItem `refreshable:"true"`
 	SingleCompactionDeltalogMaxNum    ParamItem `refreshable:"true"`
-	GlobalCompactionInterval          ParamItem `refreshable:"false"`
+
-	ChannelCheckpointMaxLag           ParamItem `refreshable:"true"`
+	ChannelCheckpointMaxLag ParamItem `refreshable:"true"`
-	SyncSegmentsInterval              ParamItem `refreshable:"false"`
+	SyncSegmentsInterval    ParamItem `refreshable:"false"`
 
 	// Clustering Compaction
 	ClusteringCompactionEnable                 ParamItem `refreshable:"true"`
@@ -3592,13 +3596,17 @@ During compaction, the size of segment # of rows is able to exceed segment max #
 		Key:          "dataCoord.compaction.single.ratio.threshold",
 		Version:      "2.0.0",
 		DefaultValue: "0.2",
+		Doc:          "The ratio threshold of a segment to trigger a single compaction, default as 0.2",
+		Export:       true,
 	}
 	p.SingleCompactionRatioThreshold.Init(base.mgr)
 
 	p.SingleCompactionDeltaLogMaxSize = ParamItem{
 		Key:          "dataCoord.compaction.single.deltalog.maxsize",
 		Version:      "2.0.0",
-		DefaultValue: strconv.Itoa(2 * 1024 * 1024),
+		DefaultValue: "16777216",
+		Doc:          "The deltalog size of a segment to trigger a single compaction, default as 16MB",
+		Export:       true,
 	}
 	p.SingleCompactionDeltaLogMaxSize.Init(base.mgr)
 
@@ -3606,6 +3614,8 @@ During compaction, the size of segment # of rows is able to exceed segment max #
 		Key:          "dataCoord.compaction.single.expiredlog.maxsize",
 		Version:      "2.0.0",
 		DefaultValue: "10485760",
+		Doc:          "The expired log size of a segment to trigger a compaction, default as 10MB",
+		Export:       true,
 	}
 	p.SingleCompactionExpiredLogMaxSize.Init(base.mgr)
 
@@ -3613,6 +3623,8 @@ During compaction, the size of segment # of rows is able to exceed segment max #
 		Key:          "dataCoord.compaction.single.deltalog.maxnum",
 		Version:      "2.0.0",
 		DefaultValue: "200",
+		Doc:          "The deltalog count of a segment to trigger a compaction, default as 200",
+		Export:       true,
 	}
 	p.SingleCompactionDeltalogMaxNum.Init(base.mgr)
 
@@ -3620,9 +3632,28 @@ During compaction, the size of segment # of rows is able to exceed segment max #
 		Key:          "dataCoord.compaction.global.interval",
 		Version:      "2.0.0",
 		DefaultValue: "60",
+		Doc:          "deprecated",
 	}
 	p.GlobalCompactionInterval.Init(base.mgr)
 
+	p.MixCompactionTriggerInterval = ParamItem{
+		Key:          "dataCoord.compaction.mix.triggerInterval",
+		Version:      "2.4.15",
+		Doc:          "The time interval in seconds to trigger mix compaction",
+		DefaultValue: "60",
+		Export:       true,
+	}
+	p.MixCompactionTriggerInterval.Init(base.mgr)
+
+	p.L0CompactionTriggerInterval = ParamItem{
+		Key:          "dataCoord.compaction.levelzero.triggerInterval",
+		Version:      "2.4.15",
+		Doc:          "The time interval in seconds for trigger L0 compaction",
+		DefaultValue: "10",
+		Export:       true,
+	}
+	p.L0CompactionTriggerInterval.Init(base.mgr)
+
 	p.ChannelCheckpointMaxLag = ParamItem{
 		Key:          "dataCoord.compaction.channelMaxCPLag",
 		Version:      "2.4.0",

pkg/util/paramtable/service_param.go

@@ -465,7 +465,7 @@ func (p *MetaStoreConfig) Init(base *BaseTable) {
 		Key:          "metastore.type",
 		Version:      "2.2.0",
 		DefaultValue: util.MetaStoreTypeEtcd,
-		Doc:          `Default value: etcd, Valid values: [etcd, tikv] `,
+		Doc:          `Default value: etcd, Valid values: [etcd, tikv]`,
 		Export:       true,
 	}
 	p.MetaStoreType.Init(base.mgr)

tests/integration/compaction/compaction_test.go

@@ -33,13 +33,15 @@ func (s *CompactionSuite) SetupSuite() {
 	s.MiniClusterSuite.SetupSuite()
 
 	paramtable.Init()
-	paramtable.Get().Save(paramtable.Get().DataCoordCfg.GlobalCompactionInterval.Key, "1")
+	paramtable.Get().Save(paramtable.Get().DataCoordCfg.MixCompactionTriggerInterval.Key, "1")
+	paramtable.Get().Save(paramtable.Get().DataCoordCfg.L0CompactionTriggerInterval.Key, "1")
 }
 
 func (s *CompactionSuite) TearDownSuite() {
 	s.MiniClusterSuite.TearDownSuite()
 
-	paramtable.Get().Reset(paramtable.Get().DataCoordCfg.GlobalCompactionInterval.Key)
+	paramtable.Get().Reset(paramtable.Get().DataCoordCfg.L0CompactionTriggerInterval.Key)
+	paramtable.Get().Reset(paramtable.Get().DataCoordCfg.MixCompactionTriggerInterval.Key)
 }
 
 func TestCompaction(t *testing.T) {

tests/integration/compaction/l2_single_compaction_test.go

@@ -273,9 +273,9 @@ func (s *L2SingleCompactionSuite) TestL2SingleCompaction() {
 func TestL2SingleCompaction(t *testing.T) {
 	paramtable.Init()
 	// to speed up the test
-	paramtable.Get().Save(paramtable.Get().DataCoordCfg.GlobalCompactionInterval.Key, "10")
+	paramtable.Get().Save(paramtable.Get().DataCoordCfg.MixCompactionTriggerInterval.Key, "10")
 	paramtable.Get().Save(paramtable.Get().DataCoordCfg.LevelZeroCompactionTriggerDeltalogMinNum.Key, "0")
-	defer paramtable.Get().Reset(paramtable.Get().DataCoordCfg.GlobalCompactionInterval.Key)
+	defer paramtable.Get().Reset(paramtable.Get().DataCoordCfg.MixCompactionTriggerInterval.Key)
 	defer paramtable.Get().Reset(paramtable.Get().DataCoordCfg.LevelZeroCompactionTriggerDeltalogMinNum.Key)
 
 	suite.Run(t, new(L2SingleCompactionSuite))