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From "Carl Steinbach (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3596) Regression - HiveConf static variable causes issues in long running JVM instances with /tmp/ data
Date Wed, 28 Nov 2012 07:34:58 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13505273#comment-13505273
] 

Carl Steinbach commented on HIVE-3596:
--------------------------------------

@Chris: Turns out that Kevin has been working on this same problem in HIVE-3709. He was able
to get a little bit farther, but his solution seems to have some concurrency issues. If you
have time it may be worth looking at his solution and seeing if you can spot threading problem.
                
> Regression - HiveConf static variable causes issues in long running JVM instances with
/tmp/ data
> -------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-3596
>                 URL: https://issues.apache.org/jira/browse/HIVE-3596
>             Project: Hive
>          Issue Type: Bug
>          Components: Configuration
>    Affects Versions: 0.8.0, 0.8.1, 0.9.0
>            Reporter: Chris McConnell
>            Assignee: Chris McConnell
>             Fix For: 0.8.1, 0.9.0, 0.10.0
>
>         Attachments: HIVE-3596.patch
>
>
> With Hive 0.8.x, HiveConf was changed to utilize the private, static member "confVarURL"
which points to /tmp/hive-<user>-<tmp_number>.xml for job configuration settings.

> During long running JVMs, such as a Beeswax server, which creates multiple HiveConf objects
over time this variable does not properly get updated between jobs and can cause job failure
if the OS cleans /tmp/ during a cron job. 

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