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Posted to mapreduce-issues@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2011/07/26 18:53:09 UTC

[jira] [Commented] (MAPREDUCE-1824) JobTracker should reuse file system handle for delegation token renewal

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13071212#comment-13071212 ] 

Daryn Sharp commented on MAPREDUCE-1824:
----------------------------------------

A variant of this code appears to have already been integrated.  The code is commented with "...THIS IS A WORKAROUND FOR NOW. NEED TO SOLVE THIS PROBLEM IN A BETTER WAY".  The issue is the lack of clear traceability of a token to its issuer.  The renewal should be improved to avoid "guessing" the URI of the NN.

> JobTracker should reuse file system handle for delegation token renewal
> -----------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1824
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1824
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Jitendra Nath Pandey
>            Assignee: Jitendra Nath Pandey
>         Attachments: MR-1824.1.patch
>
>


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