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https://issues.apache.org/jira/browse/HADOOP-9747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16317438#comment-16317438
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Bharat Viswanadham edited comment on HADOOP-9747 at 1/9/18 1:06 AM:
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Uploaded patch v02 to address the review comments.
Thank You [~daryn] for intial patch. I think, you are busy with other tasks, so
I took a crack at addressing some of the review comments to help make forward
progress on this.
Could you please review these changes.
was (Author: bharatviswa):
Uploaded patch v02 to address the review comments.
Thank You [~daryn] for intial patch. I think, you are busy with other tasks, I
have addressed the review comments and uploaded the patch.
Could you please review these changes.
> Reduce unnecessary UGI synchronization
> --------------------------------------
>
> Key: HADOOP-9747
> URL: https://issues.apache.org/jira/browse/HADOOP-9747
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Affects Versions: 0.23.0, 2.0.0-alpha, 3.0.0-alpha1
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Critical
> Attachments: HADOOP-9747-trunk.01.patch, HADOOP-9747-trunk.02.patch,
> HADOOP-9747.2.branch-2.patch, HADOOP-9747.2.trunk.patch,
> HADOOP-9747.branch-2.patch, HADOOP-9747.trunk.patch
>
>
> Jstacks of heavily loaded NNs show up to dozens of threads blocking in the
> UGI.
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