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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-689) Add multiplier unit to resourcecapabilities
Date Fri, 17 May 2013 18:49:15 GMT

    [ https://issues.apache.org/jira/browse/YARN-689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13660943#comment-13660943
] 

Alejandro Abdelnur commented on YARN-689:
-----------------------------------------

Got the point of a container not having a headroom (I was just thinking of JVM containers
which typically end up having the framework in the classpath).

Unless I'm mistaken, with the current logic I could not run a shell app using less than the
'minimum', which happens to be the multiplier, correct?

If we decide a separate multiplier has not merits, then we should rename the current minimum
to multiplier (and indicate it works with base 1).
                
> Add multiplier unit to resourcecapabilities
> -------------------------------------------
>
>                 Key: YARN-689
>                 URL: https://issues.apache.org/jira/browse/YARN-689
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: api, scheduler
>    Affects Versions: 2.0.4-alpha
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>         Attachments: YARN-689.patch
>
>
> Currently we overloading the minimum resource value as the actual multiplier used by
the scheduler.
> Today with a minimum memory set to 1GB, requests for 1.5GB are always translated to allocation
of 2GB.
> We should decouple the minimum allocation from the multiplier.
> The multiplier should also be exposed to the client via the RegisterApplicationMasterResponse

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