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https://issues.apache.org/jira/browse/MAPREDUCE-3782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13422539#comment-13422539
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Daryn Sharp commented on MAPREDUCE-3782:
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Teragen: Notice it's the DFClient reporting that it got the token. It
shouldn't be getting a token via RPC at all. I think it's getting a token for
the default fs (hdfs), not the webhdfs path on the cmdline. It "works" because
they happen to be the same host and the RPC port isn't blocked.
Terasort: Again, DFSClient shouldn't be getting the token at all.
Task failure: Awhile back, I think Nicholas fixed an issue with 0 not being
considered valid if the file length is zero. This may no longer be an issue.
> teragen terasort jobs fail when using webhdfs://
> -------------------------------------------------
>
> Key: MAPREDUCE-3782
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3782
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.1, 0.24.0
> Reporter: Arpit Gupta
> Priority: Critical
>
> When running a teragen job with a webhdfs:// url the delegation token that is
> retrieved is an hdfs delegation token.
> And the subsequent terasort job on the output fails with java io exception
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