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https://issues.apache.org/jira/browse/HIVE-4501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13782632#comment-13782632
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Konstantin Boudnik commented on HIVE-4501:
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bq. This is not the case, same thread can get used for another session
Are you saying that the same FS ref. can be used across UGIs? If so, It looks
like a nice big hole to me ;) The call for the close of FS is done at the point
where the particular UGI's session is getting finished and all its resources
are let go, e.g. operation handlers, metastore, etc. I am not sure if I follow
your comment. Could you please elaborate?
> HS2 memory leak - FileSystem objects in FileSystem.CACHE
> --------------------------------------------------------
>
> Key: HIVE-4501
> URL: https://issues.apache.org/jira/browse/HIVE-4501
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Affects Versions: 0.11.0
> Reporter: Thejas M Nair
> Assignee: Thejas M Nair
> Priority: Critical
> Attachments: HIVE-4501.1.patch, HIVE-4501.1.patch, HIVE-4501.1.patch,
> HIVE-4501.trunk.patch
>
>
> org.apache.hadoop.fs.FileSystem objects are getting accumulated in
> FileSystem.CACHE, with HS2 in unsecure mode.
> As a workaround, it is possible to set fs.hdfs.impl.disable.cache and
> fs.file.impl.disable.cache to true.
> Users should not have to bother with this extra configuration.
> As a workaround disable impersonation by setting hive.server2.enable.doAs to
> false.
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