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https://issues.apache.org/jira/browse/HDFS-17865?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDFS-17865:
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Labels: pull-request-available (was: )
> Prevent updateNameDirSize() from blocking rollEditLog()
> -------------------------------------------------------
>
> Key: HDFS-17865
> URL: https://issues.apache.org/jira/browse/HDFS-17865
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Felix N
> Assignee: Felix N
> Priority: Minor
> Labels: pull-request-available
>
> updateNameDirSize() has only metrics functionality (i.e. not very critical)
> but has a fair bit of performance impact in one of the more critical methods
> (rollEditLog). It's better to either reduce the metrics update frequency or
> make it update asynchronously to avoid interference with rollEditLog().
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