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Posted to common-issues@hadoop.apache.org by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org> on 2016/06/05 05:50:59 UTC

[jira] [Updated] (HADOOP-9747) Reduce unnecessary UGI synchronization

     [ https://issues.apache.org/jira/browse/HADOOP-9747?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli updated HADOOP-9747:
--------------------------------------------
    Target Version/s:   (was: 2.8.0)

Not much going on here for a long time, dropping from 2.8.0.

Not putting any target-version either anymore, let's target this depending on when there is patch activity.

> 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
>
> Jstacks of heavily loaded NNs show up to dozens of threads blocking in the UGI.



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