1996fanrui commented on code in PR #19723:
URL: https://github.com/apache/flink/pull/19723#discussion_r879691899
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flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/SubtaskCheckpointCoordinatorImpl.java:
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@@ -335,6 +380,34 @@ public void checkpointState(
}
}
+ private void registerAlignmentTimer(
+ long checkpointId,
+ OperatorChain<?, ?> operatorChain,
+ CheckpointBarrier checkpointBarrier) {
+ if (alignmentTimer != null) {
Review Comment:
Actually, it may not be null.
For a job without back pressure, the CP is completed quickly, but the timer
is not triggered, so the next time the CP will continue, so this may not be
null. It should be reasonable to cancel the previous timer here.
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