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https://issues.apache.org/jira/browse/MESOS-7790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benjamin Mahler reassigned MESOS-7790:
--------------------------------------
Assignee: Michael Park
> Design hierarchical quota allocation.
> -------------------------------------
>
> Key: MESOS-7790
> URL: https://issues.apache.org/jira/browse/MESOS-7790
> Project: Mesos
> Issue Type: Task
> Components: allocation
> Reporter: Benjamin Mahler
> Assignee: Michael Park
> Labels: multitenancy
>
> When quota is assigned in the role hierarchy (see MESOS-6375), it's possible
> for there to be "undelegated" quota for a role. For example:
> {noformat}
> ^
> / \
> / \
> eng (90 cpus) sales (10 cpus)
> ^
> / \
> / \
> ads (50 cpus) build (10 cpus)
> {noformat}
> Here, the "eng" role has 60 of its 90 cpus of quota delegated to its
> children, and 30 cpus remain undelegated. We need to design how to allocate
> these 30 cpus undelegated cpus. Are they allocated entirely to the "eng"
> role? Are they allocated to the "eng" role tree? If so, how do we determine
> how much is allocated to each role in the "eng" tree (i.e. "eng", "eng/ads",
> "eng/build").
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