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https://issues.apache.org/jira/browse/MAPREDUCE-2420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13280538#comment-13280538
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Benoy Antony commented on MAPREDUCE-2420:
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I removed my patch for 22. The patch -MR-2420.22-3.patch is good.
The patch for 22 in HDFS-1860 has to be applied first.
> JobTracker should be able to renew delegation token over HTTP
> -------------------------------------------------------------
>
> Key: MAPREDUCE-2420
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2420
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Boris Shkolnik
> Assignee: Boris Shkolnik
> Fix For: 0.23.0
>
> Attachments: MR-2420-1.patch, MR-2420.22-1.patch, MR-2420.22-2.patch,
> MR-2420.22-3.patch, MR-2420.patch, MR2420-2.patch, MR2420-3.patch
>
>
> in case JobTracker has to talk to a NameNode running a different version (RPC
> version mismatch), Jobtracker should be able to fall back to HTTP renewal.
> Example of the case - running distcp between different versions using hfpt.
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