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https://issues.apache.org/jira/browse/HDFS-14112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo Nicholas Sze updated HDFS-14112:
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Attachment: h14112_20181129.patch
> Avoid recursive call to external authorizer for getContentSummary.
> ------------------------------------------------------------------
>
> Key: HDFS-14112
> URL: https://issues.apache.org/jira/browse/HDFS-14112
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Reporter: Jitendra Nath Pandey
> Assignee: Tsz Wo Nicholas Sze
> Priority: Critical
> Attachments: h14112_20181128.patch, h14112_20181129.patch
>
>
> HDFS-12130 optimizes permission check, and invokes permission checker
> recursively for each component of the tree, which works well for FSPermission
> checker.
> But for certain external authorizers it may be more efficient to make one
> call with {{subaccess}}, because often they don't have to evaluate for each
> and every component of the path.
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