guozhangwang commented on code in PR #11433:
URL: https://github.com/apache/kafka/pull/11433#discussion_r1161940023
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streams/src/main/java/org/apache/kafka/streams/processor/internals/TaskManager.java:
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@@ -342,7 +342,18 @@ public void handleAssignment(final Map<TaskId,
Set<TopicPartition>> activeTasks,
maybeThrowTaskExceptions(taskCloseExceptions);
- createNewTasks(activeTasksToCreate, standbyTasksToCreate);
+ final Collection<Task> newActiveTasks =
createNewTasks(activeTasksToCreate, standbyTasksToCreate);
+ // If there are any transactions in flight and there are newly created
active tasks, commit the tasks
+ // to avoid potential long restoration times.
+ if (processingMode == EXACTLY_ONCE_V2 &&
threadProducer().transactionInFlight() && !newActiveTasks.isEmpty()) {
+ log.info("New active tasks were added and there is an inflight
transaction. Attempting to commit tasks.");
+ final int numCommitted =
commitTasksAndMaybeUpdateCommittableOffsets(newActiveTasks, new HashMap<>());
+ if (numCommitted == -1) {
Review Comment:
Hmm.. that was not expected, did you check the trace and find out why the
`onAssignment` was not triggered, in which it would set `rebalanceInProgress =
true`?
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