enhance: add more metrics for DDL framework (#45558)

issue: #43897

---------

Signed-off-by: chyezh <chyezh@outlook.com>

internal/streamingcoord/server/broadcaster/ack_callback_scheduler.go

@@ -158,9 +158,12 @@ func (s *ackCallbackScheduler) doAckCallback(bt *broadcastTask, g *lockGuards) (
 		}
 	}
 	// call the ack callback until done.
+	bt.ObserveAckCallbackBegin()
 	if err := s.callMessageAckCallbackUntilDone(s.notifier.Context(), msg, makeMap); err != nil {
 		return err
 	}
+	bt.ObserveAckCallbackDone()
+
 	logger.Debug("ack callback done")
 	if err := bt.MarkAckCallbackDone(s.notifier.Context()); err != nil {
 		// The catalog is reliable to write, so we can mark the ack callback done without retrying.

internal/streamingcoord/server/broadcaster/broadcast_manager.go

@@ -3,6 +3,7 @@ package broadcaster
 import (
 	"context"
 	"sync"
+	"time"
 
 	"github.com/cockroachdb/errors"
 	"go.uber.org/zap"
@@ -112,6 +113,7 @@ func (bm *broadcastTaskManager) WithResourceKeys(ctx context.Context, resourceKe
 		return nil, errors.Wrapf(err, "allocate new id failed")
 	}
 
+	startLockInstant := time.Now()
 	resourceKeys = bm.appendSharedClusterRK(resourceKeys...)
 	guards := bm.resourceKeyLocker.Lock(resourceKeys...)
 
@@ -120,6 +122,8 @@ func (bm *broadcastTaskManager) WithResourceKeys(ctx context.Context, resourceKe
 		guards.Unlock()
 		return nil, err
 	}
+	bm.metrics.ObserveAcquireLockDuration(startLockInstant, guards.ResourceKeys())
+
 	return &broadcasterWithRK{
 		broadcaster: bm,
 		broadcastID: id,
@@ -129,6 +133,9 @@ func (bm *broadcastTaskManager) WithResourceKeys(ctx context.Context, resourceKe
 
 // checkClusterRole checks if the cluster status is primary, otherwise return error.
 func (bm *broadcastTaskManager) checkClusterRole(ctx context.Context) error {
+	if ctx.Err() != nil {
+		return ctx.Err()
+	}
 	// Check if the cluster status is primary, otherwise return error.
 	b, err := balance.GetWithContext(ctx)
 	if err != nil {

internal/streamingcoord/server/broadcaster/broadcast_task.go

@@ -18,14 +18,14 @@ import (
 
 // newBroadcastTaskFromProto creates a new broadcast task from the proto.
 func newBroadcastTaskFromProto(proto *streamingpb.BroadcastTask, metrics *broadcasterMetrics, ackCallbackScheduler *ackCallbackScheduler) *broadcastTask {
-	m := metrics.NewBroadcastTask(proto.GetState())
 	msg := message.NewBroadcastMutableMessageBeforeAppend(proto.Message.Payload, proto.Message.Properties)
+	m := metrics.NewBroadcastTask(msg.MessageType(), proto.GetState(), msg.BroadcastHeader().ResourceKeys.Collect())
 	bt := &broadcastTask{
 		mu:                   sync.Mutex{},
+		taskMetricsGuard:     m,
 		msg:                  msg,
 		task:                 proto,
 		dirty:                true, // the task is recovered from the recovery info, so it's persisted.
-		metrics:              m,
 		ackCallbackScheduler: ackCallbackScheduler,
 		done:                 make(chan struct{}),
 		allAcked:             make(chan struct{}),
@@ -41,10 +41,11 @@ func newBroadcastTaskFromProto(proto *streamingpb.BroadcastTask, metrics *broadc
 
 // newBroadcastTaskFromBroadcastMessage creates a new broadcast task from the broadcast message.
 func newBroadcastTaskFromBroadcastMessage(msg message.BroadcastMutableMessage, metrics *broadcasterMetrics, ackCallbackScheduler *ackCallbackScheduler) *broadcastTask {
-	m := metrics.NewBroadcastTask(streamingpb.BroadcastTaskState_BROADCAST_TASK_STATE_PENDING)
+	m := metrics.NewBroadcastTask(msg.MessageType(), streamingpb.BroadcastTaskState_BROADCAST_TASK_STATE_PENDING, msg.BroadcastHeader().ResourceKeys.Collect())
 	header := msg.BroadcastHeader()
 	bt := &broadcastTask{
 		Binder:           log.Binder{},
+		taskMetricsGuard: m,
 		mu:               sync.Mutex{},
 		msg:              msg,
 		task: &streamingpb.BroadcastTask{
@@ -54,7 +55,6 @@ func newBroadcastTaskFromBroadcastMessage(msg message.BroadcastMutableMessage, m
 			AckedCheckpoints:    make([]*streamingpb.AckedCheckpoint, len(header.VChannels)),
 		},
 		dirty:                false,
-		metrics:              m,
 		ackCallbackScheduler: ackCallbackScheduler,
 		done:                 make(chan struct{}),
 		allAcked:             make(chan struct{}),
@@ -68,18 +68,19 @@ func newBroadcastTaskFromImmutableMessage(msg message.ImmutableMessage, metrics
 	task := newBroadcastTaskFromBroadcastMessage(broadcastMsg, metrics, ackCallbackScheduler)
 	// if the task is created from the immutable message, it already has been broadcasted, so transfer its state into recovered.
 	task.task.State = streamingpb.BroadcastTaskState_BROADCAST_TASK_STATE_REPLICATED
-	task.metrics.ToState(streamingpb.BroadcastTaskState_BROADCAST_TASK_STATE_REPLICATED)
+	task.ObserveStateChanged(streamingpb.BroadcastTaskState_BROADCAST_TASK_STATE_REPLICATED)
 	return task
 }
 
 // broadcastTask is the state of the broadcast task.
 type broadcastTask struct {
 	log.Binder
+	*taskMetricsGuard
+
 	mu                       sync.Mutex
 	msg                      message.BroadcastMutableMessage
 	task                     *streamingpb.BroadcastTask
 	dirty                    bool // a flag to indicate that the task has been modified and needs to be saved into the recovery info.
-	metrics                  *taskMetricsGuard
 	done                     chan struct{}
 	allAcked                 chan struct{}
 	guards                   *lockGuards
@@ -248,7 +249,6 @@ func (b *broadcastTask) ack(ctx context.Context, msgs ...message.ImmutableMessag
 	}
 	if allDone {
 		close(b.allAcked)
-		b.metrics.ObserveAckAll()
 	}
 	return nil
 }
@@ -338,11 +338,10 @@ func findIdxOfVChannel(vchannel string, vchannels []string) (int, error) {
 // FastAck trigger a fast ack operation when the broadcast operation is done.
 func (b *broadcastTask) FastAck(ctx context.Context, broadcastResult map[string]*types.AppendResult) error {
 	// Broadcast operation is done.
-	b.metrics.ObserveBroadcastDone()
-
 	b.mu.Lock()
 	defer b.mu.Unlock()
 
+	b.ObserveBroadcastDone()
 	// because we need to wait for the streamingnode to ack the message,
 	// however, if the message is already write into wal, the message is determined,
 	// so we can make a fast ack operation here to speed up the ack operation.
@@ -421,7 +420,7 @@ func (b *broadcastTask) saveTaskIfDirty(ctx context.Context, logger *log.MLogger
 		}
 		return err
 	}
-	b.metrics.ToState(b.task.State)
+	b.ObserveStateChanged(b.task.State)
 	logger.Info("save broadcast task done")
 	return nil
 }

internal/streamingcoord/server/broadcaster/metrics.go

@@ -1,13 +1,14 @@
 package broadcaster
 
 import (
+	"strings"
 	"time"
 
 	"github.com/prometheus/client_golang/prometheus"
 
 	"github.com/milvus-io/milvus/pkg/v2/metrics"
-	"github.com/milvus-io/milvus/pkg/v2/proto/messagespb"
 	"github.com/milvus-io/milvus/pkg/v2/proto/streamingpb"
+	"github.com/milvus-io/milvus/pkg/v2/streaming/util/message"
 	"github.com/milvus-io/milvus/pkg/v2/util/paramtable"
 )
 
@@ -18,67 +19,90 @@ func newBroadcasterMetrics() *broadcasterMetrics {
 	}
 	return &broadcasterMetrics{
 		taskTotal:           metrics.StreamingCoordBroadcasterTaskTotal.MustCurryWith(constLabel),
-		resourceKeyTotal:  metrics.StreamingCoordResourceKeyTotal.MustCurryWith(constLabel),
-		broadcastDuration: metrics.StreamingCoordBroadcastDurationSeconds.With(constLabel),
-		ackAllDuration:    metrics.StreamingCoordBroadcasterAckAllDurationSeconds.With(constLabel),
+		executionDuration:   metrics.StreamingCoordBroadcasterTaskExecutionDurationSeconds.MustCurryWith(constLabel),
+		broadcastDuration:   metrics.StreamingCoordBroadcasterTaskBroadcastDurationSeconds.MustCurryWith(constLabel),
+		ackCallbackDuration: metrics.StreamingCoordBroadcasterTaskAckCallbackDurationSeconds.MustCurryWith(constLabel),
+		acquireLockDuration: metrics.StreamingCoordBroadcasterTaskAcquireLockDurationSeconds.MustCurryWith(constLabel),
 	}
 }
 
 // broadcasterMetrics is the metrics of the broadcaster.
 type broadcasterMetrics struct {
 	taskTotal           *prometheus.GaugeVec
-	resourceKeyTotal  *prometheus.GaugeVec
-	broadcastDuration prometheus.Observer
-	ackAllDuration    prometheus.Observer
+	executionDuration   prometheus.ObserverVec
+	broadcastDuration   prometheus.ObserverVec
+	ackCallbackDuration prometheus.ObserverVec
+	acquireLockDuration prometheus.ObserverVec
+}
+
+// ObserveAcquireLockDuration observes the acquire lock duration.
+func (m *broadcasterMetrics) ObserveAcquireLockDuration(from time.Time, rks []message.ResourceKey) {
+	m.acquireLockDuration.WithLabelValues(formatResourceKeys(rks)).Observe(time.Since(from).Seconds())
 }
 
 // fromStateToState updates the metrics when the state of the broadcast task changes.
-func (m *broadcasterMetrics) fromStateToState(from streamingpb.BroadcastTaskState, to streamingpb.BroadcastTaskState) {
+func (m *broadcasterMetrics) fromStateToState(msgType message.MessageType, from streamingpb.BroadcastTaskState, to streamingpb.BroadcastTaskState) {
 	if from != streamingpb.BroadcastTaskState_BROADCAST_TASK_STATE_UNKNOWN {
-		m.taskTotal.WithLabelValues(from.String()).Dec()
+		m.taskTotal.WithLabelValues(msgType.String(), from.String()).Dec()
 	}
 	if to != streamingpb.BroadcastTaskState_BROADCAST_TASK_STATE_DONE {
-		m.taskTotal.WithLabelValues(to.String()).Inc()
+		m.taskTotal.WithLabelValues(msgType.String(), to.String()).Inc()
 	}
 }
 
 // NewBroadcastTask creates a new broadcast task.
-func (m *broadcasterMetrics) NewBroadcastTask(state streamingpb.BroadcastTaskState) *taskMetricsGuard {
+func (m *broadcasterMetrics) NewBroadcastTask(msgType message.MessageType, state streamingpb.BroadcastTaskState, rks []message.ResourceKey) *taskMetricsGuard {
+	rks = uniqueSortResourceKeys(rks)
 	g := &taskMetricsGuard{
 		start:              time.Now(),
+		ackCallbackBegin:   time.Now(),
 		state:              state,
+		resourceKeys:       formatResourceKeys(rks),
 		broadcasterMetrics: m,
+		messageType:        msgType,
 	}
-	g.broadcasterMetrics.fromStateToState(streamingpb.BroadcastTaskState_BROADCAST_TASK_STATE_UNKNOWN, state)
+	g.broadcasterMetrics.fromStateToState(msgType, streamingpb.BroadcastTaskState_BROADCAST_TASK_STATE_UNKNOWN, state)
 	return g
 }
 
-func (m *broadcasterMetrics) IncomingResourceKey(domain messagespb.ResourceDomain) {
-	m.resourceKeyTotal.WithLabelValues(domain.String()).Inc()
-}
-
-func (m *broadcasterMetrics) GoneResourceKey(domain messagespb.ResourceDomain) {
-	m.resourceKeyTotal.WithLabelValues(domain.String()).Dec()
-}
-
 type taskMetricsGuard struct {
 	start            time.Time
+	ackCallbackBegin time.Time
 	state            streamingpb.BroadcastTaskState
+	resourceKeys     string
+	messageType      message.MessageType
 	*broadcasterMetrics
 }
 
-// ToState updates the state of the broadcast task.
-func (g *taskMetricsGuard) ToState(state streamingpb.BroadcastTaskState) {
-	g.broadcasterMetrics.fromStateToState(g.state, state)
+// ObserveStateChanged updates the state of the broadcast task.
+func (g *taskMetricsGuard) ObserveStateChanged(state streamingpb.BroadcastTaskState) {
+	g.broadcasterMetrics.fromStateToState(g.messageType, g.state, state)
+	if state == streamingpb.BroadcastTaskState_BROADCAST_TASK_STATE_TOMBSTONE {
+		g.executionDuration.WithLabelValues(g.messageType.String()).Observe(time.Since(g.start).Seconds())
+	}
 	g.state = state
 }
 
 // ObserveBroadcastDone observes the broadcast done.
 func (g *taskMetricsGuard) ObserveBroadcastDone() {
-	g.broadcastDuration.Observe(time.Since(g.start).Seconds())
+	g.broadcastDuration.WithLabelValues(g.messageType.String()).Observe(time.Since(g.start).Seconds())
 }
 
-// ObserverAckOne observes the ack all.
-func (g *taskMetricsGuard) ObserveAckAll() {
-	g.ackAllDuration.Observe(time.Since(g.start).Seconds())
+// ObserveAckCallbackBegin observes the ack callback begin.
+func (g *taskMetricsGuard) ObserveAckCallbackBegin() {
+	g.ackCallbackBegin = time.Now()
+}
+
+// ObserveAckCallbackDone observes the ack callback done.
+func (g *taskMetricsGuard) ObserveAckCallbackDone() {
+	g.ackCallbackDuration.WithLabelValues(g.messageType.String()).Observe(time.Since(g.ackCallbackBegin).Seconds())
+}
+
+// formatResourceKeys formats the resource keys.
+func formatResourceKeys(rks []message.ResourceKey) string {
+	keys := make([]string, 0, len(rks))
+	for _, rk := range rks {
+		keys = append(keys, rk.ShortString())
+	}
+	return strings.Join(keys, "|")
 }

pkg/metrics/streaming_service_metrics.go

@@ -22,7 +22,7 @@ const (
 	WALStatusError                          = "error"
 
 	BroadcasterTaskStateLabelName     = "state"
-	ResourceKeyDomainLabelName        = "domain"
+	ResourceKeyLockLabelName          = "rk_lock"
 	WALAccessModelLabelName           = "access_model"
 	WALScannerModelLabelName          = "scanner_model"
 	TimeTickSyncTypeLabelName         = "type"
@@ -126,24 +126,31 @@ var (
 	StreamingCoordBroadcasterTaskTotal = newStreamingCoordGaugeVec(prometheus.GaugeOpts{
 		Name: "broadcaster_task_total",
 		Help: "Total of broadcaster task",
-	}, BroadcasterTaskStateLabelName)
+	}, WALMessageTypeLabelName, BroadcasterTaskStateLabelName)
 
-	StreamingCoordBroadcastDurationSeconds = newStreamingCoordHistogramVec(prometheus.HistogramOpts{
-		Name:    "broadcaster_broadcast_duration_seconds",
-		Help:    "Duration of broadcast",
+	StreamingCoordBroadcasterTaskExecutionDurationSeconds = newStreamingCoordHistogramVec(prometheus.HistogramOpts{
+		Name:    "broadcaster_task_execution_duration_seconds",
+		Help:    "Duration of broadcast execution, including broadcast message into wal and ack callback, without lock acquisition duration",
 		Buckets: secondsBuckets,
-	})
+	}, WALMessageTypeLabelName)
 
-	StreamingCoordBroadcasterAckAllDurationSeconds = newStreamingCoordHistogramVec(prometheus.HistogramOpts{
-		Name:    "broadcaster_ack_all_duration_seconds",
-		Help:    "Duration of acknowledge all message",
+	StreamingCoordBroadcasterTaskBroadcastDurationSeconds = newStreamingCoordHistogramVec(prometheus.HistogramOpts{
+		Name:    "broadcaster_task_broadcast_duration_seconds",
+		Help:    "Duration of broadcast message into wal",
 		Buckets: secondsBuckets,
-	})
+	}, WALMessageTypeLabelName)
 
-	StreamingCoordResourceKeyTotal = newStreamingCoordGaugeVec(prometheus.GaugeOpts{
-		Name: "resource_key_total",
-		Help: "Total of resource key hold at streaming coord",
-	}, ResourceKeyDomainLabelName)
+	StreamingCoordBroadcasterTaskAcquireLockDurationSeconds = newStreamingCoordHistogramVec(prometheus.HistogramOpts{
+		Name:    "broadcaster_task_acquire_lock_duration_seconds",
+		Help:    "Duration of acquire lock of resource key",
+		Buckets: secondsBuckets,
+	}, ResourceKeyLockLabelName)
+
+	StreamingCoordBroadcasterTaskAckCallbackDurationSeconds = newStreamingCoordHistogramVec(prometheus.HistogramOpts{
+		Name:    "broadcaster_task_ack_callback_duration_seconds",
+		Help:    "Duration of ack callback handler execution duration",
+		Buckets: secondsBuckets,
+	}, WALMessageTypeLabelName)
 
 	// StreamingNode Producer Server Metrics.
 	StreamingNodeProducerTotal = newStreamingNodeGaugeVec(prometheus.GaugeOpts{
@@ -483,9 +490,10 @@ func registerStreamingCoord(registry *prometheus.Registry) {
 	registry.MustRegister(StreamingCoordAssignmentVersion)
 	registry.MustRegister(StreamingCoordAssignmentListenerTotal)
 	registry.MustRegister(StreamingCoordBroadcasterTaskTotal)
-	registry.MustRegister(StreamingCoordBroadcastDurationSeconds)
-	registry.MustRegister(StreamingCoordBroadcasterAckAllDurationSeconds)
-	registry.MustRegister(StreamingCoordResourceKeyTotal)
+	registry.MustRegister(StreamingCoordBroadcasterTaskExecutionDurationSeconds)
+	registry.MustRegister(StreamingCoordBroadcasterTaskBroadcastDurationSeconds)
+	registry.MustRegister(StreamingCoordBroadcasterTaskAcquireLockDurationSeconds)
+	registry.MustRegister(StreamingCoordBroadcasterTaskAckCallbackDurationSeconds)
 }
 
 // RegisterStreamingNode registers streaming node metrics

pkg/streaming/util/message/resource_key.go

@@ -47,6 +47,14 @@ func (r ResourceKey) String() string {
 	return fmt.Sprintf("%s:%s@X", domain, r.Key)
 }
 
+func (r ResourceKey) ShortString() string {
+	domain, _ := strings.CutPrefix(r.Domain.String(), "ResourceDomain")
+	if r.Shared {
+		return fmt.Sprintf("%s@R", domain)
+	}
+	return fmt.Sprintf("%s@X", domain)
+}
+
 // NewSharedClusterResourceKey creates a shared cluster resource key.
 func NewSharedClusterResourceKey() ResourceKey {
 	return ResourceKey{