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https://issues.apache.org/jira/browse/HDFS-8856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arpit Agarwal updated HDFS-8856:
--------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 2.8.0
Target Version/s: (was: 2.8.0)
Status: Resolved (was: Patch Available)
The checkstyle issue is unrelated to the patch.
Thank you for the reviews all. Committed for 2.8.0.
> Make LeaseManager#countPath O(1)
> --------------------------------
>
> Key: HDFS-8856
> URL: https://issues.apache.org/jira/browse/HDFS-8856
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.7.2
> Reporter: Arpit Agarwal
> Assignee: Arpit Agarwal
> Fix For: 2.8.0
>
> Attachments: HDFS-8856.01.patch, HDFS-8856.02.patch,
> HDFS-8856.03.patch, HDFS-8856.04.patch
>
>
> {{LeaseManager#countPath}} loops over all existing lease holders to compute
> the pending lease count. We can just track the pending leased files so it
> runs in constant time.
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