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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-248) Restore RMDelegationTokenSecretManager state on restart
Date Wed, 28 Nov 2012 18:08:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13505726#comment-13505726

Tom White commented on YARN-248:

I can think of a couple of options: i) persist RMDelegationTokenSecretManager's state (secret
keys, all current delegation tokens), or ii) recover the delegation tokens from the persisted
credentials of the applications to be recovered (and the secret keys from a filesystem or
ZK store).
> Restore RMDelegationTokenSecretManager state on restart
> -------------------------------------------------------
>                 Key: YARN-248
>                 URL: https://issues.apache.org/jira/browse/YARN-248
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Tom White
> On restart, the RM creates a new RMDelegationTokenSecretManager with fresh state. This
will cause problems for Oozie jobs running on secure clusters since the delegation tokens
stored in the job credentials (used by the Oozie launcher job to submit a job to the RM) will
not be recognized by the RM, and recovery will fail.

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