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https://issues.apache.org/jira/browse/HDFS-6667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14066385#comment-14066385
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Daryn Sharp commented on HDFS-6667:
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[~jingzhao], I'm glancing at the patch. My time is short right now, so to
accelerate my post-review, could you please:
# Explain the mechanics of the change you made
# Confirm that no incompatibilities have been introduced that will break jobs
during a rolling upgrade
> In HDFS HA mode, Distcp/SLive with webhdfs on secure cluster fails with
> Client cannot authenticate via:[TOKEN, KERBEROS] error
> ------------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-6667
> URL: https://issues.apache.org/jira/browse/HDFS-6667
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: security
> Reporter: Jian He
> Assignee: Jing Zhao
> Fix For: 2.6.0
>
> Attachments: HDFS-6667.000.patch
>
>
> Opening on [~arpitgupta]'s behalf.
> We observed that, in HDFS HA mode, running Distcp/SLive with webhdfs will
> fail on YARN. In non-HA mode, it'll pass.
> The reason is in HA mode, only webhdfs delegation token is generated for the
> job, but YARN also requires the regular hdfs token to do localization,
> log-aggregation etc.
> In non-HA mode, both tokens are generated for the job.
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