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https://issues.apache.org/jira/browse/SPARK-10827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14965781#comment-14965781
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Bryan Cutler commented on SPARK-10827:
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Hi [~zsxwing], I can work on this if you don't mind.

> AppClient should not use `askWithReply` in `receiveAndReply` directly
> ---------------------------------------------------------------------
>
>                 Key: SPARK-10827
>                 URL: https://issues.apache.org/jira/browse/SPARK-10827
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>            Reporter: Shixiong Zhu
>
> `askWithReply` is a blocking action and it could block the message loop. We 
> should not call it in `receiveAndReply` directly. It's better to use them in 
> a separate thread pool.



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