This is an automated cherry-pick of pingcap#9174

Signed-off-by: ti-chi-bot <ti-community-prow-bot@tidb.io>

cdc/owner/changefeed.go

@@ -774,6 +774,10 @@ func (c *changefeed) cleanupMetrics() {
 
 	changefeedBarrierTsGauge.DeleteLabelValues(c.id.Namespace, c.id.ID)
 	c.metricsChangefeedBarrierTsGauge = nil
+
+	if c.isRemoved {
+		changefeedStatusGauge.DeleteLabelValues(c.id.Namespace, c.id.ID)
+	}
 }
 
 // cleanup redo logs if changefeed is removed and redo log is enabled

cdc/processor/processor.go

@@ -1228,6 +1228,7 @@ func (p *processor) Close(ctx cdcContext.Context) error {
 	log.Info("processor closing ...",
 		zap.String("namespace", p.changefeedID.Namespace),
 		zap.String("changefeed", p.changefeedID.ID))
+<<<<<<< HEAD
 	p.cancel()
 	if p.pullBasedSinking {
 		if p.sinkManager != nil {
@@ -1293,6 +1294,24 @@ func (p *processor) Close(ctx cdcContext.Context) error {
 				return errors.Trace(err)
 			}
 			log.Info("processor close sink success",
+=======
+
+	// clean up metrics first to avoid some metrics are not cleaned up
+	// when error occurs during closing the processor
+	p.cleanupMetrics()
+
+	p.sinkManager.stop()
+	p.sinkManager.r = nil
+	p.sourceManager.stop()
+	p.sourceManager.r = nil
+	p.redo.stop()
+	p.mg.stop()
+	p.ddlHandler.stop()
+
+	if p.globalVars != nil && p.globalVars.SortEngineFactory != nil {
+		if err := p.globalVars.SortEngineFactory.Drop(p.changefeedID); err != nil {
+			log.Error("Processor drop event sort engine fail",
+>>>>>>> a6939c3156 (changefeed (ticdc): remove status of a changefeed after it is removed (#9174))
 				zap.String("namespace", p.changefeedID.Namespace),
 				zap.String("changefeed", p.changefeedID.ID),
 				zap.Duration("duration", time.Since(start)))
@@ -1326,7 +1345,6 @@ func (p *processor) Close(ctx cdcContext.Context) error {
 	// mark tables share the same cdcContext with its original table, don't need to cancel
 	failpoint.Inject("processorStopDelay", nil)
 
-	p.cleanupMetrics()
 	log.Info("processor closed",
 		zap.String("namespace", p.changefeedID.Namespace),
 		zap.String("changefeed", p.changefeedID.ID))