tisonkun commented on code in PR #21249:
URL: https://github.com/apache/flink/pull/21249#discussion_r1017322603


##########
flink-connectors/flink-connector-pulsar/src/main/java/org/apache/flink/connector/pulsar/source/enumerator/PulsarSourceEnumerator.java:
##########
@@ -96,12 +98,18 @@ public PulsarSourceEnumerator(
         this.sourceConfiguration = sourceConfiguration;
         this.context = context;
         this.splitAssigner = createAssigner(stopCursor, sourceConfiguration, 
context, enumState);
+        this.metricGroup = context.metricGroup();
     }
 
     @Override
     public void start() {
         rangeGenerator.open(sourceConfiguration);
 
+        // Expose the split assignment metrics if Flink has supported.
+        if (metricGroup != null) {
+            
metricGroup.setUnassignedSplitsGauge(splitAssigner::getUnassignedSplitCount);

Review Comment:
   Nope. I think it's OK with this intention.



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