vamossagar12 commented on code in PR #11433:
URL: https://github.com/apache/kafka/pull/11433#discussion_r1198026691
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streams/src/main/java/org/apache/kafka/streams/processor/internals/TaskManager.java:
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@@ -342,7 +342,19 @@ public void handleAssignment(final Map<TaskId,
Set<TopicPartition>> activeTasks,
maybeThrowTaskExceptions(taskCloseExceptions);
- createNewTasks(activeTasksToCreate, standbyTasksToCreate);
+ rebalanceInProgress = true;
+ 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(tasks.allTasks(), new HashMap<>());
Review Comment:
@lucasbru thanks for the input. I don't have an IT for this because it was
testable via unit tests. TBH, this PR is pretty old and lot of things have
changed in the streams runtime since then and I am not totally upto date with
those. Will need to revisit.
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