[jira] [Created] (FLINK-4014) Jobs hang， Maybe NetworkBufferPool and Local、

[ZhengBowen (JIRA)]

ZhengBowen created FLINK-4014:
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             Summary: Jobs hang， Maybe NetworkBufferPool and Local、
                 Key: FLINK-4014
                 URL: https://issues.apache.org/jira/browse/FLINK-4014
             Project: Flink
          Issue Type: Bug
            Reporter: ZhengBowen
         Attachments: 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。



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