basic/checkpoint.md

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+# 常见报错
+
+## The maximum number of queued checkpoint requests exceeded 
+
+未完成的Checkpoint排队超过了1000个。需要查看作业是否存在被压等。一般情况下作业被压会导致checkpoint失败。
+
+
+## Periodic checkpoint scheduler is shut down 
+
+
+
+## The minimum time between checkpoints is still pending 
+
+
+## Not all required tasks are currently running 
+
+
+## An Exception occurred while triggering the checkpoint. 
+
+
+## Asynchronous task checkpoint failed.
+
+
+## The checkpoint was aborted due to exception of other subtasks sharing the ChannelState file 
+
+
+## Checkpoint expired before completing 
+
+
+## Checkpoint has been subsumed
+
+
+## Checkpoint was declined
+
+
+## Checkpoint was declined (tasks not ready) 
+
+
+## Checkpoint was declined (task is closing) 
+
+
+## Checkpoint was canceled because a barrier from newer checkpoint was received
+
+
+## Task received cancellation from one of its inputs 
+
+
+## Checkpoint was declined because one input stream is finished 
+
+
+## CheckpointCoordinator shutdown 
+
+
+## Checkpoint Coordinator is suspending 
+
+
+## FailoverRegion is restarting 
+
+
+## Task has failed 
+
+
+## Task local checkpoint failure 
+
+
+## Unknown task for the checkpoint to notify 
+
+
+## Failure to finalize checkpoint 
+
+
+## Trigger checkpoint failure 
+
+
+