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https://issues.apache.org/jira/browse/SPARK-12513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15070548#comment-15070548
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Shawn Guo commented on SPARK-12513:
-----------------------------------
Close client side socket connection before restart socket receiver.
https://github.com/apache/spark/pull/10464
> SocketReceiver hang in Netcat example
> -------------------------------------
>
> Key: SPARK-12513
> URL: https://issues.apache.org/jira/browse/SPARK-12513
> Project: Spark
> Issue Type: Bug
> Components: Streaming
> Affects Versions: 1.5.2
> Reporter: Shawn Guo
> Priority: Minor
>
> I add a SocketReceiver test based on the NetworkWordCount.
> Using pipeline and tail the continuous output to netcat
> tail -f xxx.log | nc -lk 9999
> and create a SocketReceiver to receive the continuous output from remote
> netcat.
> After about 10 hours, SocketReceiver hang and can not receive no more data.
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