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https://issues.apache.org/jira/browse/HADOOP-10659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14041453#comment-14041453
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Arpit Agarwal commented on HADOOP-10659:
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+1
I will commit it shortly.
> Refactor AccessControlList to reuse utility functions and to improve
> performance
> --------------------------------------------------------------------------------
>
> Key: HADOOP-10659
> URL: https://issues.apache.org/jira/browse/HADOOP-10659
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: security
> Reporter: Benoy Antony
> Assignee: Benoy Antony
> Priority: Minor
> Attachments: HADOOP-10659.patch
>
>
> Minor improvements can be done on _AccessControlList_.
> Code Reusability:
> _AccessControlList_ sanitizes the input list to remove duplicate entries,
> trim entries. _StringUtils.getTrimmedStringCollection_ can be used in this
> case.
> Performance:
> _AccessControlList_ uses TreeSet to maintain set of users and groups.
> HashSet improves the performance slightly.
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