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https://issues.apache.org/jira/browse/HIVE-9730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14335313#comment-14335313
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Gopal V commented on HIVE-9730:
-------------------------------

[~sershe]: Hold on, before we have checks for Log4JLogger etc, let's test with 
the log4j2 bridge and see if the performance issue disappears.

This is something we'll circle back to after the next profiler run.

> make sure logging is never called when not needed in perf-sensitive places
> --------------------------------------------------------------------------
>
>                 Key: HIVE-9730
>                 URL: https://issues.apache.org/jira/browse/HIVE-9730
>             Project: Hive
>          Issue Type: Improvement
>          Components: Logging
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>             Fix For: 1.2.0
>
>         Attachments: HIVE-9730.patch, log4j-llap.png
>
>
> log4j logging has really inefficient serialization
> !log4j-llap.png!



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