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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4513) disable hivehistory logs by default
Date Tue, 24 Jun 2014 07:54:24 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14041834#comment-14041834
] 

Lefty Leverenz commented on HIVE-4513:
--------------------------------------

This adds the configuration parameter *hive.session.history.enabled* in HiveConf.java and
hive-default.xml.template, so it needs to be documented in the wiki here:

* [Hive Configuration Properties | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties]

> disable hivehistory logs by default
> -----------------------------------
>
>                 Key: HIVE-4513
>                 URL: https://issues.apache.org/jira/browse/HIVE-4513
>             Project: Hive
>          Issue Type: Bug
>          Components: Configuration, Logging
>            Reporter: Thejas M Nair
>            Assignee: Thejas M Nair
>              Labels: TODOC12
>             Fix For: 0.12.0
>
>         Attachments: HIVE-4513.1.patch, HIVE-4513.2.patch, HIVE-4513.3.patch, HIVE-4513.4.patch,
HIVE-4513.5.patch, HIVE-4513.6.patch
>
>
> HiveHistory log files (hive_job_log_hive_*.txt files) store information about hive query
such as query string, plan , counters and MR job progress information.
> There is no mechanism to delete these files and as a result they get accumulated over
time, using up lot of disk space. 
> I don't think this is used by most people, so I think it would better to turn this off
by default. Jobtracker logs already capture most of this information, though it is not as
structured as history logs.



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