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https://issues.apache.org/jira/browse/MESOS-3875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15949626#comment-15949626
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Alexander Rukletsov commented on MESOS-3875:
--------------------------------------------

MESOS-3338 addresses the issue that dynamically reserved but yet unused 
resources are not accounted towards role's fair share. This ticket aims to 
prevent a quota'ed role dynamically reserve resources beyond its quota.

We need to confirm whether the scenario you describe can happen. IIRC, a 
framework may create a dynamic reservation only from offered resources, on the 
other side the allocator offers resources only after enough resources have been 
laid away to satisfy total cluster quota.

> Account dynamic reservations towards quota.
> -------------------------------------------
>
>                 Key: MESOS-3875
>                 URL: https://issues.apache.org/jira/browse/MESOS-3875
>             Project: Mesos
>          Issue Type: Task
>          Components: allocation, master
>            Reporter: Alexander Rukletsov
>            Priority: Critical
>              Labels: mesosphere
>
> Dynamic reservations—whether allocated or not—should be accounted towards 
> role's quota. This requires update in at least two places:
> * The built-in allocator, which actually satisfies quota;
> * The sanity check in the master.



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