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https://issues.apache.org/jira/browse/MESOS-6432?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Artem Harutyunyan updated MESOS-6432:
-------------------------------------
Sprint: Mesosphere Sprint 49, Mesosphere Sprint 50 (was: Mesosphere Sprint
49)
> Roles with quota assigned can "game" the system to receive excessive
> resources.
> -------------------------------------------------------------------------------
>
> Key: MESOS-6432
> URL: https://issues.apache.org/jira/browse/MESOS-6432
> Project: Mesos
> Issue Type: Bug
> Components: allocation
> Reporter: Benjamin Mahler
> Assignee: Benjamin Bannier
> Priority: Critical
>
> The current implementation of quota allocation attempts to satisfy each
> resource quota for a role, but in doing so can far exceed the quota assigned
> to the role.
> For example, if a role has quota for {{\[30,20,10\]}}, it can consume up to:
> {{\[∞, ∞, 10\]}} or {{\[∞, 20, ∞\]}} or {{\[30, ∞, ∞\]}} as only once each
> resource in the quota vector is satisfied do we stop allocating agent's
> resources to the role!
> As a first step for preventing gaming, we could consider quota satisfied once
> any of the resources in the vector has quota satisfied. This approach works
> reasonably well for resources that are required and are present on every
> agent (cpus, mem, disk). However, it doesn't work well for resources that are
> optional / only present on some agents (e.g. gpus) (a.k.a. non-ubiquitous /
> scarce resources). For this we would need to determine which agents have
> resources that can satisfy the quota prior to performing the allocation.
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