Revert "*: add metrics for batch client (#996)" (#1046)

This reverts commit 1a44252779.

Signed-off-by: crazycs520 <crazycs520@gmail.com>

internal/client/client_batch.go

@@ -70,7 +70,6 @@ type batchCommandsEntry struct {
 	// canceled indicated the request is canceled or not.
 	canceled int32
 	err      error
-	start    time.Time
 }
 
 func (b *batchCommandsEntry) isCanceled() bool {
@@ -383,14 +382,11 @@ func (a *batchConn) getClientAndSend() {
 	}
 	defer cli.unlockForSend()
 
-	now := time.Now()
-	tiKVBatchWaitToSendDuration := metrics.TiKVBatchWaitDuration.WithLabelValues("wait-to-send", target)
 	req, forwardingReqs := a.reqBuilder.build(func(id uint64, e *batchCommandsEntry) {
 		cli.batched.Store(id, e)
 		if trace.IsEnabled() {
 			trace.Log(e.ctx, "rpc", "send")
 		}
-		tiKVBatchWaitToSendDuration.Observe(float64(now.Sub(e.start)))
 	})
 	if req != nil {
 		cli.send("", req)
@@ -515,14 +511,6 @@ func (c *batchCommandsClient) isStopped() bool {
 }
 
 func (c *batchCommandsClient) send(forwardedHost string, req *tikvpb.BatchCommandsRequest) {
-	start := time.Now()
-	defer func() {
-		if forwardedHost == "" {
-			metrics.TiKVBatchConnSendDuration.WithLabelValues(c.target).Observe(time.Since(start).Seconds())
-		} else {
-			metrics.TiKVBatchConnSendDuration.WithLabelValues(forwardedHost).Observe(time.Since(start).Seconds())
-		}
-	}()
 	err := c.initBatchClient(forwardedHost)
 	if err != nil {
 		logutil.BgLogger().Warn(
@@ -789,7 +777,6 @@ func sendBatchRequest(
 	req *tikvpb.BatchCommandsRequest_Request,
 	timeout time.Duration,
 ) (*tikvrpc.Response, error) {
-	start := time.Now()
 	entry := &batchCommandsEntry{
 		ctx:           ctx,
 		req:           req,
@@ -797,11 +784,11 @@ func sendBatchRequest(
 		forwardedHost: forwardedHost,
 		canceled:      0,
 		err:           nil,
-		start:         start,
 	}
 	timer := time.NewTimer(timeout)
 	defer timer.Stop()
 
+	start := time.Now()
 	select {
 	case batchConn.batchCommandsCh <- entry:
 	case <-ctx.Done():
@@ -812,7 +799,7 @@ func sendBatchRequest(
 		return nil, errors.WithMessage(context.DeadlineExceeded, "wait sendLoop")
 	}
 	waitDuration := time.Since(start)
-	metrics.TiKVBatchWaitDuration.WithLabelValues("wait-to-chan", addr).Observe(float64(waitDuration))
+	metrics.TiKVBatchWaitDuration.Observe(float64(waitDuration))
 
 	select {
 	case res, ok := <-entry.res:

metrics/metrics.go

@@ -62,8 +62,7 @@ var (
 	TiKVLocalLatchWaitTimeHistogram          prometheus.Histogram
 	TiKVStatusDuration                       *prometheus.HistogramVec
 	TiKVStatusCounter                        *prometheus.CounterVec
-	TiKVBatchWaitDuration                    *prometheus.HistogramVec
+	TiKVBatchWaitDuration                    prometheus.Histogram
-	TiKVBatchConnSendDuration                *prometheus.HistogramVec
 	TiKVBatchSendLatency                     prometheus.Histogram
 	TiKVBatchWaitOverLoad                    prometheus.Counter
 	TiKVBatchPendingRequests                 *prometheus.HistogramVec
@@ -334,25 +333,15 @@ func initMetrics(namespace, subsystem string, constLabels prometheus.Labels) {
 			ConstLabels: constLabels,
 		}, []string{LblResult})
 
-	TiKVBatchWaitDuration = prometheus.NewHistogramVec(
+	TiKVBatchWaitDuration = prometheus.NewHistogram(
 		prometheus.HistogramOpts{
 			Namespace:   namespace,
 			Subsystem:   subsystem,
 			Name:        "batch_wait_duration",
-			Buckets:     prometheus.ExponentialBuckets(64, 2, 34), // 64ns ~ 549s
+			Buckets:     prometheus.ExponentialBuckets(1, 2, 34), // 1ns ~ 8s
-			Help:        "batch-cmd wait duration, unit is nanosecond",
+			Help:        "batch wait duration",
 			ConstLabels: constLabels,
-		}, []string{LblType, LblStore})
+		})
-
-	TiKVBatchConnSendDuration = prometheus.NewHistogramVec(
-		prometheus.HistogramOpts{
-			Namespace:   namespace,
-			Subsystem:   subsystem,
-			Name:        "batch_conn_send_seconds",
-			Buckets:     prometheus.ExponentialBuckets(0.0005, 2, 22), // 0.5ms ~ 1048s
-			Help:        "batch conn send duration",
-			ConstLabels: constLabels,
-		}, []string{LblStore})
 
 	TiKVBatchSendLatency = prometheus.NewHistogram(
 		prometheus.HistogramOpts{
@@ -779,7 +768,6 @@ func RegisterMetrics() {
 	prometheus.MustRegister(TiKVStatusDuration)
 	prometheus.MustRegister(TiKVStatusCounter)
 	prometheus.MustRegister(TiKVBatchWaitDuration)
-	prometheus.MustRegister(TiKVBatchConnSendDuration)
 	prometheus.MustRegister(TiKVBatchSendLatency)
 	prometheus.MustRegister(TiKVBatchRecvLatency)
 	prometheus.MustRegister(TiKVBatchWaitOverLoad)