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Posted to yarn-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2015/03/17 13:58:38 UTC

[jira] [Commented] (YARN-1105) RM or YarnClient to notify AMs if resource requests cannot be satisfied

    [ https://issues.apache.org/jira/browse/YARN-1105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14365080#comment-14365080 ] 

Steve Loughran commented on YARN-1105:
--------------------------------------

This can actually be done in the client, which lets you do other policies such as decide when to relax placement, rather than rely on the cluster scheduler. 

> RM or YarnClient to notify AMs if resource requests cannot be satisfied
> -----------------------------------------------------------------------
>
>                 Key: YARN-1105
>                 URL: https://issues.apache.org/jira/browse/YARN-1105
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: client, nodemanager
>    Affects Versions: 2.1.0-beta
>            Reporter: Steve Loughran
>            Priority: Minor
>
> Long-lived services may want to know when resource requests can't be satisfied, when they are stuck in a queue -so that they can cancel them, change the requirements or react in another applications-specific way



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