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https://issues.apache.org/jira/browse/YARN-689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13663399#comment-13663399
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Arun C Murthy commented on YARN-689:
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Also, other than the lack of clarity on the need for this feature; I want to
point out that I'm against this since this really complicates reservations etc.
in a massive manner. For e.g. let's say an AM wants 6.8G of RAM (with 1G
min-size), another wants 5.9G - this means that all schedulers have to assume
significant complexity (and this now a best-fit problem) for unclear gains.
> 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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