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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-1824) JobTracker should reuse file system handle for delegation token renewal
Date Mon, 01 Aug 2011 22:37:49 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Suresh Srinivas updated MAPREDUCE-1824:
---------------------------------------

    Fix Version/s:     (was: 0.20.205.0)

This will not be fixed in 0.20.205 and Daryn is going to be creating new jira to fix the issue
he intended to fix.

> 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: Daryn Sharp
>             Fix For: 0.23.0
>
>         Attachments: MR-1824.1.patch
>
>
> In trunk, the DelegationTokenRenewal obtains the file system handle by creating the uri
out of service in the token, which is ip:port. The intention of this jira is to use host name
of the namenode so that fils system handle in the cache on jobtracker could be re-used. This
jira is created because such an optimization is there in 20 code and the patch attached is
the direct port of the code in 20.

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