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https://issues.apache.org/jira/browse/HADOOP-17485?focusedWorklogId=589541&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-589541
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ASF GitHub Bot logged work on HADOOP-17485:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 27/Apr/21 03:02
Start Date: 27/Apr/21 03:02
Worklog Time Spent: 10m
Work Description: jojochuang commented on pull request #2631:
URL: https://github.com/apache/hadoop/pull/2631#issuecomment-827278391
`Inconsistent synchronization of
org.apache.hadoop.security.LdapGroupsMapping.bindPassword; locked 75% of time
Unsynchronized access at LdapGroupsMapping.java:75% of time Unsynchronized
access at LdapGroupsMapping.java:[line 596]`
Was this caused by this PR or was it already there before/
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Issue Time Tracking
-------------------
Worklog Id: (was: 589541)
Time Spent: 40m (was: 0.5h)
> 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: 40m
> 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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