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Posted to issues@hive.apache.org by "Wei Zheng (JIRA)" <ji...@apache.org> on 2016/02/25 02:16:18 UTC

[jira] [Commented] (HIVE-13151) Clean up UGI objects in FileSystem cache for transactions

    [ https://issues.apache.org/jira/browse/HIVE-13151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15166489#comment-15166489 ] 

Wei Zheng commented on HIVE-13151:
----------------------------------

To be specific, if we don't clean up the UGI info, we will end up having a lot of FileSystem$Cache$Key entries.

> Clean up UGI objects in FileSystem cache for transactions
> ---------------------------------------------------------
>
>                 Key: HIVE-13151
>                 URL: https://issues.apache.org/jira/browse/HIVE-13151
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>    Affects Versions: 2.0.0
>            Reporter: Wei Zheng
>            Assignee: Wei Zheng
>
> One issue with FileSystem.CACHE is that it does not clean itself. The key in that cache includes UGI object. When new UGI objects are created and used with the FileSystem api, new entries get added to the cache.
> We need to manually clean up those UGI objects once they are no longer in use.



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