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From "Naganarasimha G R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2919) Potential race between renew and cancel in DelegationTokenRenwer
Date Thu, 04 Dec 2014 05:50:12 GMT

    [ https://issues.apache.org/jira/browse/YARN-2919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14233934#comment-14233934
] 

Naganarasimha G R commented on YARN-2919:
-----------------------------------------

As mentioned in the [comment|https://issues.apache.org/jira/browse/YARN-2874?focusedCommentId=14233528&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14233528]
 by Karthik as ??add a variable to Token to capture that it is to be cancelled, so it works
across any duplicate TimerTasks as well??

> Potential race between renew and cancel in DelegationTokenRenwer 
> -----------------------------------------------------------------
>
>                 Key: YARN-2919
>                 URL: https://issues.apache.org/jira/browse/YARN-2919
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 2.6.0
>            Reporter: Karthik Kambatla
>            Assignee: Naganarasimha G R
>            Priority: Critical
>
> YARN-2874 fixes a deadlock in DelegationTokenRenewer, but there is still a race because
of which a renewal in flight isn't interrupted by a cancel. 



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