*: put the operator related logic together

pkg/schedule/checker/checker_controller.go

@@ -40,7 +40,7 @@ var denyCheckersByLabelerCounter = schedule.LabelerEventCounter.WithLabelValues(
 type Controller struct {
 	cluster           sche.ClusterInformer
 	conf              config.Config
-	opController      *schedule.OperatorController
+	opController      *operator.Controller
 	learnerChecker    *LearnerChecker
 	replicaChecker    *ReplicaChecker
 	ruleChecker       *RuleChecker
@@ -54,7 +54,7 @@ type Controller struct {
 }
 
 // NewController create a new Controller.
-func NewController(ctx context.Context, cluster sche.ClusterInformer, conf config.Config, ruleManager *placement.RuleManager, labeler *labeler.RegionLabeler, opController *schedule.OperatorController) *Controller {
+func NewController(ctx context.Context, cluster sche.ClusterInformer, conf config.Config, ruleManager *placement.RuleManager, labeler *labeler.RegionLabeler, opController *operator.Controller) *Controller {
 	regionWaitingList := cache.NewDefaultCache(DefaultCacheSize)
 	return &Controller{
 		cluster:           cluster,

pkg/schedule/checker/merge_checker_test.go

@@ -26,7 +26,6 @@ import (
 	"github.com/tikv/pd/pkg/core/storelimit"
 	"github.com/tikv/pd/pkg/mock/mockcluster"
 	"github.com/tikv/pd/pkg/mock/mockconfig"
-	"github.com/tikv/pd/pkg/schedule"
 	"github.com/tikv/pd/pkg/schedule/config"
 	"github.com/tikv/pd/pkg/schedule/hbstream"
 	"github.com/tikv/pd/pkg/schedule/labeler"
@@ -464,7 +463,7 @@ func (suite *mergeCheckerTestSuite) TestStoreLimitWithMerge() {
 
 	mc := NewMergeChecker(suite.ctx, tc, tc.GetOpts())
 	stream := hbstream.NewTestHeartbeatStreams(suite.ctx, tc.ID, tc, false /* no need to run */)
-	oc := schedule.NewOperatorController(suite.ctx, tc, stream)
+	oc := operator.NewController(suite.ctx, tc, stream)
 
 	regions[2] = regions[2].Clone(
 		core.SetPeers([]*metapb.Peer{

pkg/schedule/metrics.go

@@ -17,58 +17,6 @@ package schedule
 import "github.com/prometheus/client_golang/prometheus"
 
 var (
-	// TODO: pre-allocate gauge metrics
-	operatorCounter = prometheus.NewCounterVec(
-		prometheus.CounterOpts{
-			Namespace: "pd",
-			Subsystem: "schedule",
-			Name:      "operators_count",
-			Help:      "Counter of schedule operators.",
-		}, []string{"type", "event"})
-
-	operatorDuration = prometheus.NewHistogramVec(
-		prometheus.HistogramOpts{
-			Namespace: "pd",
-			Subsystem: "schedule",
-			Name:      "finish_operators_duration_seconds",
-			Help:      "Bucketed histogram of processing time (s) of finished operator.",
-			Buckets:   []float64{0.5, 1, 2, 4, 8, 16, 20, 40, 60, 90, 120, 180, 240, 300, 480, 600, 720, 900, 1200, 1800, 3600},
-		}, []string{"type"})
-
-	operatorSizeHist = prometheus.NewHistogramVec(
-		prometheus.HistogramOpts{
-			Namespace: "pd",
-			Subsystem: "schedule",
-			Name:      "operator_region_size",
-			Help:      "Bucketed histogram of the operator region size.",
-			Buckets:   prometheus.ExponentialBuckets(1, 2, 20), // 1MB~1TB
-		}, []string{"type"})
-
-	operatorWaitCounter = prometheus.NewCounterVec(
-		prometheus.CounterOpts{
-			Namespace: "pd",
-			Subsystem: "schedule",
-			Name:      "operators_waiting_count",
-			Help:      "Counter of schedule waiting operators.",
-		}, []string{"type", "event"})
-
-	operatorWaitDuration = prometheus.NewHistogramVec(
-		prometheus.HistogramOpts{
-			Namespace: "pd",
-			Subsystem: "schedule",
-			Name:      "waiting_operators_duration_seconds",
-			Help:      "Bucketed histogram of waiting time (s) of operator for being promoted.",
-			Buckets:   prometheus.ExponentialBuckets(0.01, 2, 16),
-		}, []string{"type"})
-
-	storeLimitCostCounter = prometheus.NewCounterVec(
-		prometheus.CounterOpts{
-			Namespace: "pd",
-			Subsystem: "schedule",
-			Name:      "store_limit_cost",
-			Help:      "limit rate cost of store.",
-		}, []string{"store", "limit_type"})
-
 	scatterCounter = prometheus.NewCounterVec(
 		prometheus.CounterOpts{
 			Namespace: "pd",
@@ -96,13 +44,7 @@ var (
 )
 
 func init() {
-	prometheus.MustRegister(operatorCounter)
-	prometheus.MustRegister(operatorDuration)
-	prometheus.MustRegister(operatorWaitDuration)
-	prometheus.MustRegister(storeLimitCostCounter)
-	prometheus.MustRegister(operatorWaitCounter)
 	prometheus.MustRegister(scatterCounter)
 	prometheus.MustRegister(scatterDistributionCounter)
-	prometheus.MustRegister(operatorSizeHist)
 	prometheus.MustRegister(LabelerEventCounter)
 }

pkg/schedule/operator/metrics.go

@@ -35,6 +35,14 @@ var (
 			Help:      "Counter of operator meeting limit",
 		}, []string{"type", "name"})
 
+	storeLimitCostCounter = prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Namespace: "pd",
+			Subsystem: "schedule",
+			Name:      "store_limit_cost",
+			Help:      "limit rate cost of store.",
+		}, []string{"store", "limit_type"})
+
 	// OperatorExceededStoreLimitCounter exposes the counter when operator meet exceeded store limit.
 	OperatorExceededStoreLimitCounter = prometheus.NewCounterVec(
 		prometheus.CounterOpts{
@@ -43,10 +51,60 @@ var (
 			Name:      "operator_exceeded_store_limit",
 			Help:      "Counter of operator meeting store limit",
 		}, []string{"desc"})
+
+	// TODO: pre-allocate gauge metrics
+	operatorCounter = prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Namespace: "pd",
+			Subsystem: "schedule",
+			Name:      "operators_count",
+			Help:      "Counter of schedule operators.",
+		}, []string{"type", "event"})
+
+	operatorDuration = prometheus.NewHistogramVec(
+		prometheus.HistogramOpts{
+			Namespace: "pd",
+			Subsystem: "schedule",
+			Name:      "finish_operators_duration_seconds",
+			Help:      "Bucketed histogram of processing time (s) of finished operator.",
+			Buckets:   []float64{0.5, 1, 2, 4, 8, 16, 20, 40, 60, 90, 120, 180, 240, 300, 480, 600, 720, 900, 1200, 1800, 3600},
+		}, []string{"type"})
+
+	operatorSizeHist = prometheus.NewHistogramVec(
+		prometheus.HistogramOpts{
+			Namespace: "pd",
+			Subsystem: "schedule",
+			Name:      "operator_region_size",
+			Help:      "Bucketed histogram of the operator region size.",
+			Buckets:   prometheus.ExponentialBuckets(1, 2, 20), // 1MB~1TB
+		}, []string{"type"})
+
+	operatorWaitCounter = prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Namespace: "pd",
+			Subsystem: "schedule",
+			Name:      "operators_waiting_count",
+			Help:      "Counter of schedule waiting operators.",
+		}, []string{"type", "event"})
+
+	operatorWaitDuration = prometheus.NewHistogramVec(
+		prometheus.HistogramOpts{
+			Namespace: "pd",
+			Subsystem: "schedule",
+			Name:      "waiting_operators_duration_seconds",
+			Help:      "Bucketed histogram of waiting time (s) of operator for being promoted.",
+			Buckets:   prometheus.ExponentialBuckets(0.01, 2, 16),
+		}, []string{"type"})
 )
 
 func init() {
 	prometheus.MustRegister(operatorStepDuration)
 	prometheus.MustRegister(OperatorLimitCounter)
 	prometheus.MustRegister(OperatorExceededStoreLimitCounter)
+	prometheus.MustRegister(operatorCounter)
+	prometheus.MustRegister(operatorDuration)
+	prometheus.MustRegister(operatorWaitDuration)
+	prometheus.MustRegister(operatorWaitCounter)
+	prometheus.MustRegister(operatorSizeHist)
+	prometheus.MustRegister(storeLimitCostCounter)
 }