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From "Avihai Berkovitz (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-4631) NullPointerException during stream task cleanup
Date Sun, 18 Sep 2016 14:51:20 GMT
Avihai Berkovitz created FLINK-4631:
---------------------------------------

             Summary: 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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