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https://issues.apache.org/jira/browse/STORM-3476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ethan Li reopened STORM-3476:
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> LocalizedResourceRetentionSet cleanup causing excessive load on Hadoop
> namenode
> -------------------------------------------------------------------------------
>
> Key: STORM-3476
> URL: https://issues.apache.org/jira/browse/STORM-3476
> Project: Apache Storm
> Issue Type: Improvement
> Affects Versions: 2.0.0
> Reporter: Aaron Gresch
> Assignee: Aaron Gresch
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.0.1
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> One of our local dev Hadoop devs noticed our storm user was by far creating
> the heaviest load on our production Hadoop cluster. Looking at one of the
> heaviest supervisor nodes, and comparing debug logs to the Hadoop audit log,
> it looks like LocalizedResourceRetentionSet cleanup was constantly doing
> opens and never deleting any files.
>
> The frequency can be addressed by supervisor.localizer.cleanup.interval.ms,
> but even so, it seems we will continually look for files to delete even when
> the target size is acceptable, resulting in unnecessary calls to Hadoop.
>
>
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