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https://issues.apache.org/jira/browse/FLINK-4014?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ZhengBowen updated FLINK-4014:
------------------------------
    Description: 
I also run a five jobs, and all the slot filled.And I seem to find my five jobs 
is all hanged.

Following attachments are my jstack and job source code.

The hang.stack display all thread related to the job is WAIT. Why?

  was:
I also run a five jobs, and all the slot filled.And I seem to find my five jobs 
is all hanged.

Following attachments are my jstack and job source code.

The hang.stack display all thread related to the job is WAIT. 


> Jobs hang. Maybe NetworkBufferPool and LocalBufferPool has some problem
> -----------------------------------------------------------------------
>
>                 Key: FLINK-4014
>                 URL: https://issues.apache.org/jira/browse/FLINK-4014
>             Project: Flink
>          Issue Type: Bug
>            Reporter: ZhengBowen
>         Attachments: FlinkJob_20160603_174748_000003.java, hang.stack
>
>
> I also run a five jobs, and all the slot filled.And I seem to find my five 
> jobs is all hanged.
> Following attachments are my jstack and job source code.
> The hang.stack display all thread related to the job is WAIT. Why?



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