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https://issues.apache.org/jira/browse/MESOS-4339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15108142#comment-15108142
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Fan Du commented on MESOS-4339:
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[~adam-mesos] and [~bbannier]
Based on the proposal documentation from MESOS-4284, it's well justified to
enable weighted DRF framework sorter in a multi-role scenario, to keep the
allocation decision fair across roles and frameworks. Although the work to
support weighted DRF framework sorter is independent with that of multi-role
frameworks in its design logic(which is what I thought before incompletely)
but, the former needed to be done *AFTER* multi-role frameworks apparently in
implementation.
So I'm wondering if you don't mind, I would still like to contribute this
ticket to multi-role frameworks.
> Add weight support for framework sorter
> ---------------------------------------
>
> Key: MESOS-4339
> URL: https://issues.apache.org/jira/browse/MESOS-4339
> Project: Mesos
> Issue Type: Improvement
> Components: allocation
> Reporter: Fan Du
> Assignee: Fan Du
>
> Current framework sorter doesn't take into account of weights when sorting
> framework belonging to a particular role, i.e., all frameworks has equal
> weights as 1. Considering the role weight is controlled by the operator,
> enable the framework weight does not impact the role level allocation
> decision from any greedy frameworks, but it will be beneficial to some
> framework who could get more resources within a specific role.
> The framework weight will come from message FrameworkInfo when it got
> registered, and FrameworkSorters will "add" framework with weight,
> this will eventually result a weighted framework sorting flow when master
> make the finally allocation decision.
> Please review this ticket which I will work on if it's considered acceptable.
> Thanks a lot.
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