1996fanrui commented on code in PR #20233: URL: https://github.com/apache/flink/pull/20233#discussion_r923351868
########## flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/channel/ChannelStateWriterImpl.java: ########## @@ -60,89 +63,78 @@ public class ChannelStateWriterImpl implements ChannelStateWriter { private static final Logger LOG = LoggerFactory.getLogger(ChannelStateWriterImpl.class); - private static final int DEFAULT_MAX_CHECKPOINTS = - 1000; // includes max-concurrent-checkpoints + checkpoints to be aborted (scheduled via - // mailbox) Review Comment: Hi @pnowojski , thanks for your review. The `checkpointId < nextExpectedCheckpointId` may happen. For example, `AlternatingWaitingForFirstBarrierUnaligned#barrierReceived` don't check whether checkpointId is aborted, if received a barrier, it will call the ChannelStateWriter.start(). - If `checkpointId < ongoingCheckpointId`, it should throw exception. - If `checkpointId < nextExpectedCheckpointId` that is `checkpointId >= ongoingCheckpointId && abortedCheckpointIds.contains(checkpointId)`, it should ignore the checkpoint. - If `checkpointId >= ongoingCheckpointId && !abortedCheckpointIds.contains(checkpointId)`, the ongoingCheckpointId should be updated, and start this checkpoint. So, we should use `ongoingCheckpointId`, and just update it within `ChannelStateWriterImpl#start` We should ignore checkpoint when the checkpointId is aborted, so we need the `NavigableSet<Long> abortedCheckpointIds;`. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org