XComp commented on code in PR #22422:
URL: https://github.com/apache/flink/pull/22422#discussion_r1172876045
##########
flink-runtime/src/main/java/org/apache/flink/runtime/leaderelection/LeaderElectionEventHandler.java:
##########
@@ -56,4 +74,18 @@ public interface LeaderElectionEventHandler {
* address.
*/
void onLeaderInformationChange(LeaderInformation leaderInformation);
+
+ /**
+ * Called by specific {@link LeaderElectionDriver} when the leader
information is changed. Then
+ * the {@link LeaderElectionService} could write the leader information
again if necessary. This
+ * method should only be called when {@link
LeaderElectionDriver#hasLeadership()} is true.
+ * Duplicated leader change events could happen, so the implementation
should check whether the
+ * passed leader information is really different with internal confirmed
leader information.
+ *
+ * <p>This method * will trigger the grant event processing in a separate
thread.
Review Comment:
Oh man :facepalm: Thanks for being precise in your review :+1:
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