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https://issues.apache.org/jira/browse/HAWQ-1621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16497230#comment-16497230
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Alexander Denissov commented on HAWQ-1621:
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The fix from [~dbhargov] is available here:
https://github.com/apache/incubator-hawq/pull/1374
> Call FileSystem.closeAllForUGI at the end of request when PXF impersonation
> is on
> ---------------------------------------------------------------------------------
>
> Key: HAWQ-1621
> URL: https://issues.apache.org/jira/browse/HAWQ-1621
> Project: Apache HAWQ
> Issue Type: Improvement
> Components: PXF
> Reporter: Divya Bhargov
> Assignee: Alexander Denissov
> Priority: Major
>
> Due to open Hadoop JIRA: https://issues.apache.org/jira/browse/HDFS-3545 ,
> when PXF impersonation is on, proxy UGIs created for each request produce
> FileSystem cache entries that are not removed when the request is over. This
> causes OutOfMemory errors since the entries are never removed. To remove the
> entries and clean the cache, we should call FileSystem.closeAllForUGI at the
> end of request when PXF impersonation is on.
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