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https://issues.apache.org/jira/browse/HIVE-9756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14363919#comment-14363919
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Siddharth Seth commented on HIVE-9756:
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[~gopalv] - Tez is moving to slf4j in the 0.7 release (TEZ-2176).
Unfortauntely, Hadoop provides log4j as well - so this may be problematic
anyway. We'll find out once the Tez patch goes in.
> LLAP: use log4j 2 for llap
> --------------------------
>
> Key: HIVE-9756
> URL: https://issues.apache.org/jira/browse/HIVE-9756
> Project: Hive
> Issue Type: Sub-task
> Reporter: Gunther Hagleitner
> Assignee: Gopal V
>
> For the INFO logging, we'll need to use the log4j-jcl 2.x upgrade-path to get
> throughput friendly logging.
> http://logging.apache.org/log4j/2.0/manual/async.html#Performance
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