zhijiangW commented on a change in pull request #12478:
URL: https://github.com/apache/flink/pull/12478#discussion_r437897063
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File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/SubtaskCheckpointCoordinatorImpl.java
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@@ -186,7 +186,7 @@ public void abortCheckpointOnBarrier(long checkpointId,
Throwable cause, Operato
checkpointStorage.clearCacheFor(checkpointId);
- channelStateWriter.abort(checkpointId, cause);
+ channelStateWriter.abort(checkpointId, cause, true);
Review comment:
I am not quite sure whether we still have race condition here.
`abortCheckpointOnBarrier` might be called from `CheckpointBarrierUnaligner`
after triggering checkpoint into mailbox. After aborting, we did not remove the
checkpoint action from mailbox, so the checkpoint might still happen
afterwards. So how to guarantee that `#getAndRemoveWriteResult` would never be
called after aborting?
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