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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-13151) Clean up UGI objects in FileSystem cache for transactions
Date Mon, 21 Mar 2016 23:58:25 GMT

    [ https://issues.apache.org/jira/browse/HIVE-13151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15205392#comment-15205392
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Eugene Koifman commented on HIVE-13151:
---------------------------------------

Shouldn't this be solved in Hadoop?  If anything else is using UGI the cache will still leak.
 What do other submodules do?


1. TestTxnCommands2 - seems to have unused imports added
2. Would it make sense to include CompactionInfo.getFullPartitionName() in the error message
for more context?  (Worker/Initiator/Cleaner - basically throughout)


> 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
>         Attachments: HIVE-13151.1.patch, HIVE-13151.2.patch, HIVE-13151.3.patch
>
>
> 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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