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From "Sanjay Radia (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9044) add FindClass main class to provide classpath checking of installations
Date Fri, 29 Mar 2013 20:47:15 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13617702#comment-13617702
] 

Sanjay Radia commented on HADOOP-9044:
--------------------------------------

I meant, add an option to print any config variable, not just URLs.
                
> add FindClass main class to provide classpath checking of installations
> -----------------------------------------------------------------------
>
>                 Key: HADOOP-9044
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9044
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: util
>    Affects Versions: 1.1.0, 2.0.3-alpha
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Minor
>         Attachments: HADOOP-9044.patch, HADOOP-9044.patch
>
>
> It's useful in postflight checking of a hadoop installation to verify that classes load,
especially codes with external JARs and native codecs. 
> An entry point designed to load a named class and create an instance of that class can
do this -and be invoked from any shell script or tool that does the installation.

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