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Posted to issues@hive.apache.org by "Lefty Leverenz (JIRA)" <ji...@apache.org> on 2016/09/01 05:47:20 UTC
[jira] [Commented] (HIVE-13027) Configuration changes to improve
logging performance
[ https://issues.apache.org/jira/browse/HIVE-13027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15454400#comment-15454400 ]
Lefty Leverenz commented on HIVE-13027:
---------------------------------------
Thanks Prasanth. I added *hive.async.log.enabled* to the Configuration Properties doc:
* [Configuration Properties -- hive.async.log.enabled | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.async.log.enabled]
> Configuration changes to improve logging performance
> ----------------------------------------------------
>
> Key: HIVE-13027
> URL: https://issues.apache.org/jira/browse/HIVE-13027
> Project: Hive
> Issue Type: Improvement
> Components: Logging
> Affects Versions: 2.1.0
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
> Fix For: 2.1.0
>
> Attachments: HIVE-13027.1.patch, HIVE-13027.2.patch, HIVE-13027.3.patch, HIVE-13027.3.patch, HIVE-13027.4.patch
>
>
> For LLAP and HS2, some configuration changes can be made to improve logging performance
> 1) LOG4j2's async logger claims to have 6-68 times better performance than synchronous logger. https://logging.apache.org/log4j/2.x/manual/async.html
> 2) Replace File appenders with RandomAccessFileAppender that claims to be 20-200% more performant.
> https://logging.apache.org/log4j/2.x/manual/appenders.html#RandomAccessFileAppender
> Also make async logging configurable.
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