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From "Chesnay Schepler (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-6277) RuntimeException in logs during normal shutdown
Date Fri, 19 May 2017 12:59:04 GMT

     [ https://issues.apache.org/jira/browse/FLINK-6277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chesnay Schepler updated FLINK-6277:
------------------------------------
    Component/s:     (was: Streaming)
                 DataStream API

> RuntimeException in logs during normal shutdown
> -----------------------------------------------
>
>                 Key: FLINK-6277
>                 URL: https://issues.apache.org/jira/browse/FLINK-6277
>             Project: Flink
>          Issue Type: Bug
>          Components: DataStream API
>    Affects Versions: 1.2.0
>            Reporter: Andrey
>
> During job shutdown, I noticed Exception in logs:
> {code}
> 2017-04-07 08:17:51,995 WARN  org.apache.flink.streaming.api.operators.AbstractStreamOperator
 - Error while emitting latency marker.
> java.lang.RuntimeException
> 	at org.apache.flink.streaming.runtime.io.RecordWriterOutput.emitLatencyMarker(RecordWriterOutput.java:99)
> 	at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.emitLatencyMarker(AbstractStreamOperator.java:791)
> 	at org.apache.flink.streaming.api.operators.StreamSource$LatencyMarksEmitter$1.onProcessingTime(StreamSource.java:142)
> 	at org.apache.flink.streaming.runtime.tasks.SystemProcessingTimeService$RepeatedTriggerTask.run(SystemProcessingTimeService.java:256)
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> 	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException
> 	at java.lang.Object.wait(Native Method)
> 	at org.apache.flink.runtime.io.network.buffer.LocalBufferPool.requestBuffer(LocalBufferPool.java:168)
> 	at org.apache.flink.runtime.io.network.buffer.LocalBufferPool.requestBufferBlocking(LocalBufferPool.java:138)
> 	at org.apache.flink.runtime.io.network.api.writer.RecordWriter.sendToTarget(RecordWriter.java:131)
> 	at org.apache.flink.runtime.io.network.api.writer.RecordWriter.randomEmit(RecordWriter.java:106)
> 	at org.apache.flink.streaming.runtime.io.StreamRecordWriter.randomEmit(StreamRecordWriter.java:104)
> 	at org.apache.flink.streaming.runtime.io.RecordWriterOutput.emitLatencyMarker(RecordWriterOutput.java:96)
> 	... 10 more
> {code}
> It looks like RecordWriterOutput catches and re-throw all exceptions. Even InterruptedException.
According to "cancel" method LatencyMarksEmitter may interrupt future. 
> Expected:
> * cleanly shutdown LatencyMarksEmitter 
> * correctly handle InterruptedException



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