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4a8a0637e0
For the KRaft implementation there is a race between the network thread, which read bytes in the log segments, and the KRaft driver thread, which truncates the log and appends records to the log. This race can cause the network thread to send corrupted records or inconsistent records. The corrupted records case is handle by catching and logging the CorruptRecordException. The inconsistent records case is handle by only appending record batches who's partition leader epoch is less than or equal to the fetching replica's epoch and the epoch didn't change between the request and response. For the ISR implementation there is also a race between the network thread and the replica fetcher thread, which truncates the log and appends records to the log. This race can cause the network thread send corrupted records or inconsistent records. The replica fetcher thread already handles the corrupted record case. The inconsistent records case is handle by only appending record batches who's partition leader epoch is less than or equal to the leader epoch in the FETCH request. Reviewers: Jun Rao <junrao@apache.org>, Alyssa Huang <ahuang@confluent.io>, Chia-Ping Tsai <chia7712@apache.org> |
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