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Posted to common-issues@hadoop.apache.org by "Varun Saxena (JIRA)" <ji...@apache.org> on 2015/01/01 20:06:13 UTC

[jira] [Updated] (HADOOP-11402) Use guava cache to implement negative user-to-group cache

     [ https://issues.apache.org/jira/browse/HADOOP-11402?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Varun Saxena updated HADOOP-11402:
----------------------------------
    Attachment: HADOOP-11402.004.patch

> 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, HADOOP-11402.003.patch, HADOOP-11402.004.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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