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Posted to common-issues@hadoop.apache.org by "Ahmed Hussein (Jira)" <ji...@apache.org> on 2021/01/22 21:38:00 UTC
[jira] [Work started] (HADOOP-17485) port UGI#getGroupsSet
optimizations into 2.10
[ https://issues.apache.org/jira/browse/HADOOP-17485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on HADOOP-17485 started by Ahmed Hussein.
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> port UGI#getGroupsSet optimizations into 2.10
> ---------------------------------------------
>
> Key: HADOOP-17485
> URL: https://issues.apache.org/jira/browse/HADOOP-17485
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.10.1
> Reporter: Ahmed Hussein
> Assignee: Ahmed Hussein
> Priority: Major
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> HADOOP-17079 introduced an optimization adding a UGI#getGroupsSet and use Set#contains() instead of List#contains() to speed up large group look up while minimize List->Set conversions in Groups#getGroups() call.
> This ticket is to port the changes into branch-2.10.
>
> CC: [~Jim_Brennan], [~xyao]
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