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https://issues.apache.org/jira/browse/YARN-689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13663140#comment-13663140
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Karthik Kambatla commented on YARN-689:
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Just caught up on the conversation. Is there any disadvantage to having two
configs - one each for min and multiplier? By default, one could be equal to
the other?
Personally, I can see cases one might want to go really fine on the multiplier
granularity - 128 MB - for better resource utilization. I am fine with having a
single config as long as reducing the multiplier value for some reason doesn't
adversely affect my ability to run tasks due to ultra-low min.
> 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, YARN-689.patch, 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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