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https://issues.apache.org/jira/browse/HDFS-17478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17838810#comment-17838810
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ASF GitHub Bot commented on HDFS-17478:
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jojochuang merged PR #6749:
URL: https://github.com/apache/hadoop/pull/6749
> FSPermissionChecker to avoid obtaining a new AccessControlEnforcer instance
> before each authz call
> --------------------------------------------------------------------------------------------------
>
> Key: HDFS-17478
> URL: https://issues.apache.org/jira/browse/HDFS-17478
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namanode
> Reporter: Madhan Neethiraj
> Assignee: Madhan Neethiraj
> Priority: Major
> Labels: pull-request-available
> Attachments: HDFS-17478.patch
>
>
> An instance of AccessControlEnforcer is obtained from the registered
> INodeAttributeProvider before every call made to authorizer. This can be
> avoided by initializing the AccessControlEnforcer instance during
> construction of FsPermissionChecker and using it in every subsequent call to
> the authorizer. This will eliminate the unnecessary overhead in highly
> performance sensitive authz code path.
>
> CC: [~abhay], [~arp], [~swagle]
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