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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-1043) Benchmark overhead of server-side group resolution of users
Date Fri, 19 Mar 2010 22:06:27 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1043?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Konstantin Shvachko updated HDFS-1043:
--------------------------------------

    Attachment: UGCRefresh.patch

A minor correction to JavaDoc, and a merge with current trunk. 

> Benchmark overhead of server-side group resolution of users
> -----------------------------------------------------------
>
>                 Key: HDFS-1043
>                 URL: https://issues.apache.org/jira/browse/HDFS-1043
>             Project: Hadoop HDFS
>          Issue Type: Test
>          Components: benchmarks
>    Affects Versions: 0.22.0
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>             Fix For: 0.22.0
>
>         Attachments: UGCRefresh.patch, UGCRefresh.patch
>
>
> Server-side user group resolution was introduced in HADOOP-4656. 
> The benchmark should repeatedly request the name-node for user group resolution, and
reset NN's user group cache periodically.

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