collect pprof heap

Signed-off-by: Ping Yu <[email protected]>

cdc/tests/integration_tests/flow_control/run.sh

@@ -49,7 +49,7 @@ EOF
 	# Wait until cdc pulls the data from tikv and store it in soter
 	sleep 90
 
-	rss1=$(ps -aux | grep 'tikv-cdc' | head -n1 | awk '{print $6}')
+	rss1=$(ps -aux | grep 'tikv-cdc' | grep -v grep | head -n1 | awk '{print $6}')
 	if [[ $rss1 == "" ]]; then
 		echo "Failed to get rrs1 by ps"
 		exit 1
@@ -61,12 +61,9 @@ EOF
 	echo "cdc server used memory: $used"
 	if [ $used -gt $expected ]; then
 		echo "Maybe flow-contorl is not working"
-
-		if [ "$SINK_TYPE" != "kafka" ]; then
-			# Kafka sink may have memory leak.
-			# TODO: investigate why.
-			exit 1
-		fi
+		# CI only collect *.log files, so name it as heap-dump.log
+		curl http://127.0.0.1:8600/debug/pprof/heap >$WORK_DIR/heap-dump.log
+		exit 1
 	fi
 
 	# As "per-changefeed-memory-quota" is low the syncing will cost more time.