changes from dtle go-mysql-org#477 by 790493303

Author: Fu Wenhui

replication/binlogstreamer.go

@@ -3,6 +3,7 @@ package replication
 import (
 	"context"
 	"github.com/pingcap/errors"
+	"github.com/opentracing/opentracing-go"
 	"github.com/siddontang/go-log/log"
 	"time"
 )
@@ -28,6 +29,10 @@ func (s *BinlogStreamer) GetEvent(ctx context.Context) (*BinlogEvent, error) {
 
 	select {
 	case c := <-s.ch:
+		span := opentracing.StartSpan("send binlogEvent from go-mysql", opentracing.FollowsFrom(c.SpanContest))
+		span.SetTag("send event from go mysql   time ", time.Now().Unix())
+		c.SpanContest = span.Context()
+		span.Finish()
 		return c, nil
 	case s.err = <-s.ech:
 		return nil, s.err
@@ -56,7 +61,7 @@ func (s *BinlogStreamer) GetEventWithStartTime(ctx context.Context, startTime ti
 	}
 }
 
-// DumpEvents dumps all left events
+// DumpEvents dumps all left eventsmax_payload
 func (s *BinlogStreamer) DumpEvents() []*BinlogEvent {
 	count := len(s.ch)
 	events := make([]*BinlogEvent, 0, count)

replication/binlogsyncer.go

@@ -12,6 +12,7 @@ import (
 	"time"
 
 	"github.com/pingcap/errors"
+	"github.com/opentracing/opentracing-go"
 	uuid "github.com/satori/go.uuid"
 	"github.com/siddontang/go-log/log"
 	"github.com/siddontang/go-mysql/client"
@@ -634,7 +635,10 @@ func (b *BinlogSyncer) onStream(s *BinlogStreamer) {
 	}()
 
 	for {
+		span := opentracing.StartSpan("data source: get incremental data from  ReadPacket()")
+		span.SetTag("before get incremental data  time:", time.Now().Unix())
 		data, err := b.c.ReadPacket()
+		span.SetTag("after  get incremental data time:", time.Now().Unix())
 		if err != nil {
 			log.Error(err)
 
@@ -671,7 +675,6 @@ func (b *BinlogSyncer) onStream(s *BinlogStreamer) {
 			// we connect the server and begin to re-sync again.
 			continue
 		}
-
 		//set read timeout
 		if b.cfg.ReadTimeout > 0 {
 			b.c.SetReadDeadline(time.Now().Add(b.cfg.ReadTimeout))
@@ -682,7 +685,7 @@ func (b *BinlogSyncer) onStream(s *BinlogStreamer) {
 
 		switch data[0] {
 		case OK_HEADER:
-			if err = b.parseEvent(s, data); err != nil {
+			if err = b.parseEvent(span.Context(), s, data); err != nil {
 				s.closeWithError(err)
 				return
 			}
@@ -701,13 +704,16 @@ func (b *BinlogSyncer) onStream(s *BinlogStreamer) {
 			log.Errorf("invalid stream header %c", data[0])
 			continue
 		}
+		span.Finish()
 	}
 }
 
-func (b *BinlogSyncer) parseEvent(s *BinlogStreamer, data []byte) error {
+func (b *BinlogSyncer) parseEvent(spanContext opentracing.SpanContext, s *BinlogStreamer, data []byte) error {
 	//skip OK byte, 0x00
 	data = data[1:]
-
+	span := opentracing.GlobalTracer().StartSpan("  incremental data are  conversion to  BinlogEvent", opentracing.ChildOf(spanContext))
+	span.SetTag("time", time.Now().Unix())
+	defer span.Finish()
 	needACK := false
 	if b.cfg.SemiSyncEnabled && (data[0] == SemiSyncIndicator) {
 		needACK = (data[1] == 0x01)
@@ -716,6 +722,8 @@ func (b *BinlogSyncer) parseEvent(s *BinlogStreamer, data []byte) error {
 	}
 
 	e, err := b.parser.Parse(data)
+	e.SpanContest = span.Context()
+	span.SetTag("tx timestap", e.Header.Timestamp)
 	if err != nil {
 		return errors.Trace(err)
 	}

replication/event.go

@@ -10,6 +10,7 @@ import (
 	"unicode"
 
 	"github.com/pingcap/errors"
+	"github.com/opentracing/opentracing-go"
 	"github.com/satori/go.uuid"
 	. "github.com/siddontang/go-mysql/mysql"
 )
@@ -26,8 +27,9 @@ type BinlogEvent struct {
 	// raw binlog data which contains all data, including binlog header and event body, and including crc32 checksum if exists
 	RawData []byte
 
-	Header *EventHeader
-	Event  Event
+	Header      *EventHeader
+	Event       Event
+	SpanContest opentracing.SpanContext
 }
 
 func (e *BinlogEvent) Dump(w io.Writer) {

replication/parser.go

@@ -324,7 +324,7 @@ func (p *BinlogParser) Parse(data []byte) (*BinlogEvent, error) {
 		return nil, err
 	}
 
-	return &BinlogEvent{RawData: rawData, Header: h, Event: e}, nil
+	return &BinlogEvent{RawData: rawData, Header: h, Event: e, SpanContest: nil}, nil
 }
 
 func (p *BinlogParser) verifyCrc32Checksum(rawData []byte) error {