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https://issues.apache.org/jira/browse/SPARK-16246?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15352481#comment-15352481
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Saisai Shao commented on SPARK-16246:
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It would be better to have a thread dump about running executors, then we could
identify the real cause.
> Too many block-manager-slave-async-thread opened (TIMED_WAITING) for spark
> Kafka streaming
> ------------------------------------------------------------------------------------------
>
> Key: SPARK-16246
> URL: https://issues.apache.org/jira/browse/SPARK-16246
> Project: Spark
> Issue Type: Bug
> Components: Spark Core, Streaming
> Affects Versions: 1.6.1
> Reporter: Alex Jiang
>
> I don't know if our spark streaming issue is related to this
> (https://issues.apache.org/jira/browse/SPARK-15558).
> Basically we have one Kafka receiver on each executor, and it ran fine for a
> while. Then, the executor had a lot of waiting thread accumulated (Thread
> 1224: block-manager-slave-async-thread-pool-1083 (TIMED_WAITING)). And the
> executor kept open such new thread. Eventually, it reached the maximum number
> of the thread on that executor and Kafka receiver on that executor failed.
> Could someone please shed some light on this?
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