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https://issues.apache.org/jira/browse/FLINK-4014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15323320#comment-15323320
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Ufuk Celebi commented on FLINK-4014:
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Hey Zheng! Thanks for the stack trace. All tasks are either requesting a buffer
to write records to or a buffer to read from.
- Is this happening reproducibly?
- Can you check the system load when this happens? Is the system idling or is
there disk I/O happening?
- Can you please post the plan via env.getExecutionPlan()?
> 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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