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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1882) Implement and verify Scheduler#moveApplication() idempotent for CapacityScheduler/FairScheduler
Date Wed, 26 Mar 2014 19:01:17 GMT

    [ https://issues.apache.org/jira/browse/YARN-1882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13948323#comment-13948323
] 

Vinod Kumar Vavilapalli commented on YARN-1882:
-----------------------------------------------

>From my quick glance of YARN-1521 patch, it seemed like the move itself is never recorded
in the state-store. That is a pre-requisite to make it work across fail-over.

> Implement and verify Scheduler#moveApplication() idempotent for CapacityScheduler/FairScheduler
> -----------------------------------------------------------------------------------------------
>
>                 Key: YARN-1882
>                 URL: https://issues.apache.org/jira/browse/YARN-1882
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>
> After YARN-1521, we have marked ApplicationClientProtocol#moveApplicationAcrossQueues
as Idempotent. We should make sure: 
> * In CapacityScheduler, it is implemented as idempotent
> * In FairScheduler, verify it works idempotent when failover happens



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