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https://issues.apache.org/jira/browse/MAPREDUCE-3236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13131973#comment-13131973
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Jitendra Nath Pandey commented on MAPREDUCE-3236:
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It is expected that JT can't renew tokens from a different cluster over
hdfs:// (i.e. using rpc) if rpc ports are closed for outside cluster access. It
is usually expected that http ports are open so it should work over hftp. It
seems to me its not a bug.
Daryn,
Lets address the issue you pointed out in a separate jira.
> Distcp with hdfs:// passed with error in JT log while copying from .20.204
> to .20.205 ( with useIp=false)
> ----------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3236
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3236
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobtracker, security
> Affects Versions: 0.20.205.0
> Reporter: Rajit Saha
> Assignee: Daryn Sharp
> Attachments: HDFS-2447-1.patch, HDFS-2447.patch
>
>
> I tried to copy file from .20.204 to .20.205 by distcp over hdfs:// while
> using hadoop.security.token.service.use_ip=false in core-site.xml. The copy
> was successful but found error "
> org.apache.hadoop.mapreduce.security.token.DelegationTokenRenewal:" exception
> in .20.205 JT.
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