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From "Sergey Shelukhin (JIRA)" <>
Subject [jira] [Commented] (HIVE-9756) LLAP: use log4j 2 for llap
Date Fri, 04 Sep 2015 19:47:46 GMT


Sergey Shelukhin commented on HIVE-9756:

How does this work for IO elevator thread, and other potential permanent threads (e.g. when
thread runner will be changed to be on a threadpool and not on separate threads)?
I had problem with MDC (iirc) in that the MDC would be set once for a threadpool thread and
then all the fragments would log that MDC.

> LLAP: use log4j 2 for llap
> --------------------------
>                 Key: HIVE-9756
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Gunther Hagleitner
>            Assignee: Prasanth Jayachandran
>         Attachments: HIVE-9756.1.patch
> For the INFO logging, we'll need to use the log4j-jcl 2.x upgrade-path to get throughput
friendly logging.

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