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From "Sanjay Radia (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7214) Hadoop /usr/bin/groups equivalent
Date Fri, 15 Apr 2011 00:48:06 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13020135#comment-13020135
] 

Sanjay Radia commented on HADOOP-7214:
--------------------------------------

Thinking a little bit further, one could argue that since Hadoop derives user accounts and
membership from 
its environment, one should ask the environment about group membership:  that is,  use the
groups command of 
your environment (typically a unix system).
Perhaps the main motivation for Hadoop-groups-command is to detect if Hadoop has been correctly
configured 
for the environment. 

> Hadoop /usr/bin/groups equivalent
> ---------------------------------
>
>                 Key: HADOOP-7214
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7214
>             Project: Hadoop Common
>          Issue Type: New Feature
>    Affects Versions: 0.23.0
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>         Attachments: hadoop-7214.0.txt, hadoop-7214.1.txt, hadoop-7214.2.txt, hadoop-7214.3.txt,
hadoop-7214.4.txt
>
>
> Since user -> groups resolution is done on the NN and JT machines, there should be
a way for users to determine what groups they're a member of from the NN's and JT's perspective.

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