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From "Vinay Kumar Thota (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6944) [Herriot] Implement a functionality for building proxy users file and proxy users list.
Date Mon, 20 Sep 2010 04:48:33 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12912346#action_12912346

Vinay Kumar Thota commented on HADOOP-6944:

The getProxyUsersFile() method is using  in the test. Gridmix should require a proxy users
file whenever it tries to impersonate girdmix jobs with different user. I am using the method
in the test for one the tests. 

bq. It seems to me that you want to create new functionality that is required by just certain
types of tests only, which doesn't look right to me.

I agreed your point. However, initially I thought of implementing this functionality in gridmix
utilities. But I felt that, if  I implement under common space, it would be useful for other
components also if they require in future. If you are not ok to keep it in common space, let
me know. So that I will move this functionality under gridmix utilities.

> [Herriot] Implement a functionality for building proxy users file and proxy users list.
> ---------------------------------------------------------------------------------------
>                 Key: HADOOP-6944
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6944
>             Project: Hadoop Common
>          Issue Type: Task
>          Components: test
>            Reporter: Vinay Kumar Thota
>            Assignee: Vinay Kumar Thota
>         Attachments: HADOOP-6944.patch, HADOOP-6944.patch
> Gridmix should require a proxy user's file for impersonating various jobs. So, implement
couple of methods for getting the proxy users list and a proxy users file (it's a combination
of proxy users and groups) based on cluster configuration.
> The proxy users list should require for map reduce jobs and proxy users file should require
for gridmix jobs.
> The following are methods signature,
> public String getProxyUsersFile() - getting the proxy users file based on cluster configuration
> public String buildProxyUsersFile() - Build the proxy users file using the cluster configuration.
> public ArraryList<String> getHadoopMultiUsersList() - get the list of proxy users
list based on cluster configuration.

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