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https://issues.apache.org/jira/browse/YARN-2798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14194071#comment-14194071
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Zhijie Shen edited comment on YARN-2798 at 11/2/14 11:50 PM:
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Created patch to remove the translation logic from the client, and at the
client side we just need to ensure _HOST is going to be mapped to the right
timeline server. Add the test cases to verify the responsibility at both the
client and server-side DT creating.
Please note that to make this work, core-site.xml that is presented to the
timeline server should have proper auth_to_local configuration.
was (Author: zjshen):
Created patch to remove the translation logic from the client, and at the
client side we just need to ensure _HOST is going to be mapped to the right
timeline server. Add the test cases to verify the responsibility at both the
client and server-side DT creating.
Please note that to make this work, core-site.xml and yarn-site.xml that are
presented to the timeline server should have proper auth_to_local and rm
principal configurations.
> YarnClient doesn't need to translate Kerberos name of timeline DT renewer
> -------------------------------------------------------------------------
>
> Key: YARN-2798
> URL: https://issues.apache.org/jira/browse/YARN-2798
> Project: Hadoop YARN
> Issue Type: Bug
> Components: timelineserver
> Reporter: Arpit Gupta
> Assignee: Zhijie Shen
> Priority: Blocker
> Attachments: YARN-2798.1.patch
>
>
> Now YarnClient will automatically get a timeline DT when submitting an app in
> a secure mode. It will try to parse the yarn-site.xml/core-site.xml to get
> the RM daemon operating system user. However, the RM principal and
> auth_to_local may not be properly presented to the client, and the client
> cannot translate the principal to the daemon user properly. On the other
> hand, AbstractDelegationTokenIdentifier will do this translation when create
> the token. However, since the client has already translated the full
> principal into a short user name (which may not be correct), the server can
> no longer apply the translation any more, where RM principal and
> auth_to_local are always correct.
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