chia7712 commented on code in PR #15732:
URL: https://github.com/apache/kafka/pull/15732#discussion_r1567855363
##########
metadata/src/main/java/org/apache/kafka/metadata/migration/KRaftMigrationDriver.java:
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@@ -391,13 +391,20 @@ void enqueueMetadataChangeEvent(
// Events handled by Migration Driver.
abstract class MigrationEvent implements EventQueue.Event {
+ // Use no-op handler by default because the handleException will be
overridden if needed
+ private Consumer<Throwable> retryHandler = NO_OP_HANDLER;
+
+ public void retryHandler(Consumer<Throwable> retryHandler) {
+ this.retryHandler = retryHandler;
+ }
Review Comment:
Also, should we call `wakeup` (run next poll ASAP) rather that
`scheduleDeferred` if the exception is retryable?
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