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https://issues.apache.org/jira/browse/HADOOP-11402?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Varun Saxena updated HADOOP-11402:
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Description: Negative user-to-group cache entries are never cleared for
never-again-accessed users. Use guava cache so that expired entries can be
deleted automatically (was: Negative user-to-group cache entries are never
cleared for never-again-accessed users. We should have a background thread
that runs very infrequently and removes these expired entries.)
> Use guava cache to implement negative user-to-group cache
> ---------------------------------------------------------
>
> Key: HADOOP-11402
> URL: https://issues.apache.org/jira/browse/HADOOP-11402
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 2.6.0
> Reporter: Colin Patrick McCabe
> Assignee: Varun Saxena
> Attachments: HADOOP-11402.001.patch, HADOOP-11402.002.patch
>
>
> Negative user-to-group cache entries are never cleared for
> never-again-accessed users. Use guava cache so that expired entries can be
> deleted automatically
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