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From "sandflee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2567) Add a percentage-node threshold for RM to wait for new allocations after restart/failover
Date Wed, 13 Apr 2016 15:29:25 GMT

    [ https://issues.apache.org/jira/browse/YARN-2567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15239425#comment-15239425
] 

sandflee commented on YARN-2567:
--------------------------------

Thanks [~jlowe],  agree that a asynchronous state store will always lead to inconsistent and
hard to fix. make state store first seems a reasonable way. 

> Add a percentage-node threshold for RM to wait for new allocations after restart/failover
> -----------------------------------------------------------------------------------------
>
>                 Key: YARN-2567
>                 URL: https://issues.apache.org/jira/browse/YARN-2567
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>
> This is the remaining part of YARN-2001 - to halt allocations after restart till x% of
nodes sync back with the RM. This is useful for avoiding bad scheduling during the time the
nodes are still joining back after a restart/failover.



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