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https://issues.apache.org/jira/browse/HDFS-10956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daryn Sharp updated HDFS-10956:
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Status: Patch Available (was: Open)
> Remove rename/delete performance penalty when not using snapshots
> -----------------------------------------------------------------
>
> Key: HDFS-10956
> URL: https://issues.apache.org/jira/browse/HDFS-10956
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HDFS-10956.patch
>
>
> When deleting or renaming directories, the entire subtree(s) is scanned for
> snapshottable directories. The performance penalty may become very expensive
> for dense trees. The snapshot manager knows if snapshots are in use, so
> clusters not using snapshots should not take the performance penalty.
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