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From "Thejas M Nair (JIRA)" <>
Subject [jira] [Commented] (HIVE-11304) Migrate to Log4j2 from Log4j 1.x
Date Thu, 23 Jul 2015 00:44:05 GMT


Thejas M Nair commented on HIVE-11304:

[~prasanth_j], [~hsubramaniyan] added changes to be able to change logging level between queries
in HIVE-10119. TestOperationLoggingAPI has tests for it.
We would need to detect the current logging level for current operation in doAppend() (or
its equivalent in log4j2)

> Migrate to Log4j2 from Log4j 1.x
> --------------------------------
>                 Key: HIVE-11304
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>    Affects Versions: 2.0.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>         Attachments: HIVE-11304.2.patch, HIVE-11304.patch
> Log4J2 has some great benefits and can benefit hive significantly. Some notable features
> 1) Performance (parametrized logging, performance when logging is disabled etc.) More
details can be found here
> 2) RoutingAppender - Route logs to different log files based on MDC context (useful for
HS2, LLAP etc.)
> 3) Asynchronous logging
> This is an umbrella jira to track changes related to Log4j2 migration.

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