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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-392) Make it possible to schedule to specific nodes without dropping locality
Date Thu, 09 May 2013 22:57:16 GMT

    [ https://issues.apache.org/jira/browse/YARN-392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13653347#comment-13653347
] 

Alejandro Abdelnur commented on YARN-392:
-----------------------------------------

'fallThrough' please (even if i cannot pronounce it).

bq. | As discussed earlier in this jira, its not possible to mix strict and non-strict allocations
at the same priority. I dont see that being checked/enforced anywhere.
bq. I'll add that in. What should we do if the submitted ResourceRequests are invalid?

I don't think we need to worry about this, an request for a location will override the previous
one, thus an invalid mix cannot happen.
                
> Make it possible to schedule to specific nodes without dropping locality
> ------------------------------------------------------------------------
>
>                 Key: YARN-392
>                 URL: https://issues.apache.org/jira/browse/YARN-392
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Bikas Saha
>            Assignee: Sandy Ryza
>         Attachments: YARN-392-1.patch, YARN-392-2.patch, YARN-392-2.patch, YARN-392-2.patch,
YARN-392.patch
>
>
> Currently its not possible to specify scheduling requests for specific nodes and nowhere
else. The RM automatically relaxes locality to rack and * and assigns non-specified machines
to the app.

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