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https://issues.apache.org/jira/browse/MESOS-8352?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benjamin Mahler updated MESOS-8352:
-----------------------------------
Sprint: Mesosphere Sprint 70
> Resources may get over allocated to some roles while fail to meet the quota
> of other roles.
> -------------------------------------------------------------------------------------------
>
> Key: MESOS-8352
> URL: https://issues.apache.org/jira/browse/MESOS-8352
> Project: Mesos
> Issue Type: Bug
> Components: allocation
> Reporter: Meng Zhu
> Assignee: Meng Zhu
> Labels: multitenancy, quotas
>
> In the quota role allocation stage, if a role gets some resources on an agent
> to meet its quota, it will also get all other resources on the same agent
> that it does not have quota for. This may starve roles behind it that have
> quotas set for those resources.
> To fix that, we need to track quota headroom in the quota role allocation
> stage. In that stage, if a role has no quota set for a scalar resource, it
> will get that resource only when two conditions are both met:
> - It got some other resources on the same agent to meet its quota; And
> - After allocating those resources, quota headroom is still above the
> required amount.
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