guozhangwang commented on code in PR #13300:
URL: https://github.com/apache/kafka/pull/13300#discussion_r1157835624
##########
streams/src/main/java/org/apache/kafka/streams/processor/internals/StoreChangelogReader.java:
##########
@@ -986,6 +987,11 @@ private void prepareChangelogs(final
Set<ChangelogMetadata> newPartitionsToResto
} catch (final Exception e) {
throw new StreamsException("State restore listener failed
on batch restored", e);
}
+
+ final TaskId taskId =
changelogs.get(partition).stateManager.taskId();
+ final StreamTask task = (StreamTask) tasks.get(taskId);
+ final long recordsToRestore =
Math.max(changelogMetadata.restoreEndOffset - startOffset, 0L);
Review Comment:
I've added a comment to cover the very edge case when it could become
negative.
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