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Date: Wed, 28 Nov 2012 08:20:59 +0000 (UTC)
From: "Carl Steinbach (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
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Subject: [jira] [Commented] (HIVE-3709) Stop storing default ConfVars in
 temp file
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    [ https://issues.apache.org/jira/browse/HIVE-3709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13505292#comment-13505292 ] 

Carl Steinbach commented on HIVE-3709:
--------------------------------------

Another option for fixing this problem is to give administrators the ability to specify the location where the temporary file should be written (for setuid processes running on POSIX systems the conventional location is somewhere under /var). For example we could add a configuration property named hive.process.local.temporary.dir and have it default to ${user.home}/.hive/${process_id}.


> Stop storing default ConfVars in temp file
> ------------------------------------------
>
>                 Key: HIVE-3709
>                 URL: https://issues.apache.org/jira/browse/HIVE-3709
>             Project: Hive
>          Issue Type: Improvement
>          Components: Configuration
>    Affects Versions: 0.10.0
>            Reporter: Kevin Wilfong
>            Assignee: Kevin Wilfong
>         Attachments: HIVE-3709.1.patch.txt, HIVE-3709.2.patch.txt, HIVE-3709.3.patch.txt
>
>
> To work around issues with Hadoop's Configuration object, specifically it's addResource(InputStream), default configurations are written to a temp file (I think HIVE-2362 introduced this).
> This, however, introduces the problem that once that file is deleted from /tmp the client crashes.  This is particularly problematic for long running services like the metastore server.
> Writing a custom InputStream to deal with the problems in the Configuration object should provide a work around, which does not introduce a time bomb into Hive.

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