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https://issues.apache.org/jira/browse/HDFS-8617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lei (Eddy) Xu updated HDFS-8617:
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Status: Patch Available (was: Open)
> Throttle DiskChecker#checkDirs() speed.
> ---------------------------------------
>
> Key: HDFS-8617
> URL: https://issues.apache.org/jira/browse/HDFS-8617
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: HDFS
> Affects Versions: 2.7.0
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Attachments: HDFS-8617.000.patch
>
>
> As described in HDFS-8564, {{DiskChecker.checkDirs(finalizedDir)}} is
> causing excessive I/Os because {{finalizedDirs}} might have up to 64K
> sub-directories (HDFS-6482).
> This patch proposes to limit the rate of IO operations in
> {{DiskChecker.checkDirs()}}.
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