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https://issues.apache.org/jira/browse/HBASE-14597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14961440#comment-14961440
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Gary Helmling commented on HBASE-14597:
---------------------------------------
I'm not a big fan of the way TestGroups is assigned in
User.createUserForTesting(), but I see that that parallels the way UGI is doing
things and seems this is necessary for tests.
+1
> Fix Groups cache in multi-threaded env
> --------------------------------------
>
> Key: HBASE-14597
> URL: https://issues.apache.org/jira/browse/HBASE-14597
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0, 1.2.0, 1.3.0
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 2.0.0, 1.2.0, 1.3.0
>
> Attachments: HBASE-14597-v1.patch, HBASE-14597-v2.patch,
> HBASE-14597-v4.patch, HBASE-14597-v5.patch, HBASE-14597-v6.patch,
> HBASE-14597.patch
>
>
> UGI doesn't hash based on the user as expected so since we have lots of ugi
> potentially created the cache doesn't do it's job.
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