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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-582) Restore appToken and clientToken for app attempt after RM restart
Date Mon, 29 Apr 2013 19:58:16 GMT

    [ https://issues.apache.org/jira/browse/YARN-582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13644805#comment-13644805
] 

Daryn Sharp commented on YARN-582:
----------------------------------

I've only glanced over the patch, but do these tokens actually need to be handled specially?
 Is it feasible to handle all tokens in an opaque credentials within the store?  I think that
may reduce the copy-n-paste code throughout the stores for restoring these tokens.
                
> Restore appToken and clientToken for app attempt after RM restart
> -----------------------------------------------------------------
>
>                 Key: YARN-582
>                 URL: https://issues.apache.org/jira/browse/YARN-582
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Bikas Saha
>            Assignee: Jian He
>         Attachments: YARN-582.1.patch
>
>
> These need to be saved and restored on a per app attempt basis. This is required only
when work preserving restart is implemented for secure clusters. In non-preserving restart
app attempts are killed and so this does not matter.

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