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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-4631) NullPointerException during stream task cleanup
Date Fri, 28 Oct 2016 09:53:58 GMT

    [ https://issues.apache.org/jira/browse/FLINK-4631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15614952#comment-15614952
] 

ASF GitHub Bot commented on FLINK-4631:
---------------------------------------

Github user zentol commented on the issue:

    https://github.com/apache/flink/pull/2709
  
    +1 to merge


> NullPointerException during stream task cleanup
> -----------------------------------------------
>
>                 Key: FLINK-4631
>                 URL: https://issues.apache.org/jira/browse/FLINK-4631
>             Project: Flink
>          Issue Type: Bug
>    Affects Versions: 1.1.2
>         Environment: Ubuntu server 12.04.5 64 bit
> java version "1.8.0_40"
> Java(TM) SE Runtime Environment (build 1.8.0_40-b26)
> Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)
>            Reporter: Avihai Berkovitz
>
> If a streaming job failed during startup (in my case, due to lack of network buffers),
all the tasks are being cancelled before they started. This causes many instances of the following
exception:
> {noformat}
> 2016-09-18 14:17:12,177 ERROR org.apache.flink.streaming.runtime.tasks.StreamTask   
       - Error during cleanup of stream task
> java.lang.NullPointerException
> 	at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.cleanup(OneInputStreamTask.java:73)
> 	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:323)
> 	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:584)
> 	at java.lang.Thread.run(Thread.java:745)
> {noformat}



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