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Stefan Richter commented on FLINK-5462:
---------------------------------------
I think this is just a followup exception of a canceled checkpoint. We see this if one of the snapshots that belongs to this CP fails, which I think is ok. I suggest that we can close this issue?
> Flink job fails due to java.util.concurrent.CancellationException while snapshotting
> ------------------------------------------------------------------------------------
>
> Key: FLINK-5462
> URL: https://issues.apache.org/jira/browse/FLINK-5462
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.2.0
> Reporter: Robert Metzger
> Attachments: application-1484132267957-0005
>
>
> I'm using Flink 699f4b0.
> My restored, rescaled Flink job failed while creating a checkpoint with the following exception:
> {code}
> 2017-01-11 18:46:49,853 INFO org.apache.flink.runtime.checkpoint.CheckpointCoordinator - Triggering checkpoint 3 @ 1484160409846
> 2017-01-11 18:49:50,111 INFO org.apache.flink.runtime.executiongraph.ExecutionGraph - TriggerWindow(TumblingEventTimeWindows(4), ListStateDescriptor{serializer=org.apache.flink.api.java.typeutils.runtime.TupleSerializer@2edcd071}, EventTimeTrigger(), WindowedStream
> .apply(AllWindowedStream.java:440)) (1/1) (2accc6ca2727c4f7ec963318fbd237e9) switched from RUNNING to FAILED.
> AsynchronousException{java.lang.Exception: Could not materialize checkpoint 3 for operator TriggerWindow(TumblingEventTimeWindows(4), ListStateDescriptor{serializer=org.apache.flink.api.java.typeutils.runtime.TupleSerializer@2edcd071}, EventTimeTrigger(), WindowedStream.ap
> ply(AllWindowedStream.java:440)) (1/1).}
> at org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.run(StreamTask.java:939)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.Exception: Could not materialize checkpoint 3 for operator TriggerWindow(TumblingEventTimeWindows(4), ListStateDescriptor{serializer=org.apache.flink.api.java.typeutils.runtime.TupleSerializer@2edcd071}, EventTimeTrigger(), WindowedStream.apply(AllWind
> owedStream.java:440)) (1/1).
> ... 6 more
> Caused by: java.util.concurrent.CancellationException
> at java.util.concurrent.FutureTask.report(FutureTask.java:121)
> at java.util.concurrent.FutureTask.get(FutureTask.java:188)
> at org.apache.flink.util.FutureUtil.runIfNotDoneAndGet(FutureUtil.java:40)
> at org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.run(StreamTask.java:899)
> ... 5 more
> 2017-01-11 18:49:50,113 INFO org.apache.flink.runtime.executiongraph.ExecutionGraph - Job Generate Event Window stream (90859d392c1da472e07695f434b332ef) switched from state RUNNING to FAILING.
> AsynchronousException{java.lang.Exception: Could not materialize checkpoint 3 for operator TriggerWindow(TumblingEventTimeWindows(4), ListStateDescriptor{serializer=org.apache.flink.api.java.typeutils.runtime.TupleSerializer@2edcd071}, EventTimeTrigger(), WindowedStream.ap
> ply(AllWindowedStream.java:440)) (1/1).}
> at org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.run(StreamTask.java:939)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.Exception: Could not materialize checkpoint 3 for operator TriggerWindow(TumblingEventTimeWindows(4), ListStateDescriptor{serializer=org.apache.flink.api.java.typeutils.runtime.TupleSerializer@2edcd071}, EventTimeTrigger(), WindowedStream.apply(AllWindowedStream.java:440)) (1/1).
> ... 6 more
> Caused by: java.util.concurrent.CancellationException
> at java.util.concurrent.FutureTask.report(FutureTask.java:121)
> at java.util.concurrent.FutureTask.get(FutureTask.java:188)
> at org.apache.flink.util.FutureUtil.runIfNotDoneAndGet(FutureUtil.java:40)
> at org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.run(StreamTask.java:899)
> ... 5 more
> 2017-01-11 18:49:50,122 INFO org.apache.flink.runtime.executiongraph.ExecutionGraph - Source: Custom Source -> Timestamps/Watermarks (1/2) (e52c1211b5693552f5908b0082c80882) switched from RUNNING to CANCELING.
> {code}
> There are no other logged around that time.
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