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https://issues.apache.org/jira/browse/HIVE-15958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15871099#comment-15871099
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Gopal V commented on HIVE-15958:
--------------------------------

[~prasanth_j]: does this undo the fix in HADOOP-11772? 

We had the exact opposite problem of synchronizing behind a single Client for 
all heartbeats & events.

> LLAP: IPC connections are not being reused for umbilical protocol
> -----------------------------------------------------------------
>
>                 Key: HIVE-15958
>                 URL: https://issues.apache.org/jira/browse/HIVE-15958
>             Project: Hive
>          Issue Type: Bug
>          Components: llap
>    Affects Versions: 2.2.0
>            Reporter: Rajesh Balamohan
>            Assignee: Prasanth Jayachandran
>         Attachments: HIVE-15958.1.patch
>
>
> During concurrency testing, observed 1000s of ipc thread creations. Ideally, 
> the connections to same hosts should be reused.



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