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From "Robert Joseph Evans (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3819) Exception while renewing delegation token
Date Fri, 24 Feb 2012 21:15:49 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13215915#comment-13215915
] 

Robert Joseph Evans commented on MAPREDUCE-3819:
------------------------------------------------

OK So the issue is that Tokens and Renewal of the tokens has been abstracted away so much
that the RM has no direct reference to HDFS at all.  The DFSClient.Renewer is loaded using
a ServiceLoader and there is no reference to HdfsConfiguration from DFSClient.Renewer.  The
best I can think of is to create a static method in HdfsConfiguration that is a noop, but
documents what is happening, and have it called from DFSClient.Renewer.  Without the method
we run the risk of having someone clean up code that is not needed and have these things go
away.
                
> Exception while renewing delegation token
> -----------------------------------------
>
>                 Key: MAPREDUCE-3819
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3819
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.1
>            Reporter: Ramya Sunil
>            Assignee: Robert Joseph Evans
>            Priority: Critical
>


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