KKcorps commented on code in PR #15563:
URL: https://github.com/apache/pinot/pull/15563#discussion_r2054650757
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pinot-core/src/main/java/org/apache/pinot/core/data/manager/realtime/RealtimeSegmentDataManager.java:
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@@ -475,7 +475,10 @@ protected boolean consumeLoop()
messageBatch.getMessageCount(),
messageBatch.getUnfilteredMessageCount(),
messageBatch.isEndOfPartitionGroup());
}
- _endOfPartitionGroup = messageBatch.isEndOfPartitionGroup();
+ // We need to check for both endOfPartitionGroup and messageCount ==
0, because
+ // endOfPartitionGroup can be true even if this is the last batch of
messages (has been observed for kinesis)
+ // To process the last batch of messages, we need to set
_endOfPartitionGroup to false in such a case
+ _endOfPartitionGroup = messageBatch.getMessageCount() == 0 &&
messageBatch.isEndOfPartitionGroup();
Review Comment:
When was this observed? IMO, we should fix the logic in KinesisMessageBatch
that's resulting in this instead of making this change
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