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https://issues.apache.org/jira/browse/MESOS-9701?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benjamin Mahler reassigned MESOS-9701:
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Assignee: Andrei Sekretenko
> Allocator's roles map should track reservations.
> ------------------------------------------------
>
> Key: MESOS-9701
> URL: https://issues.apache.org/jira/browse/MESOS-9701
> Project: Mesos
> Issue Type: Improvement
> Components: allocation
> Reporter: Benjamin Mahler
> Assignee: Andrei Sekretenko
> Priority: Major
> Labels: resource-management
>
> Currently, the allocator's {{roles}} map only tracks roles that have
> allocations or framework subscriptions:
> https://github.com/apache/mesos/blob/1.7.2/src/master/allocator/mesos/hierarchical.hpp#L531-L535
> And we separately track a map of total reservations for each role:
> https://github.com/apache/mesos/blob/1.7.2/src/master/allocator/mesos/hierarchical.hpp#L541-L547
> Confusingly, the {{roles}} map won't have an entry when there is a
> reservation for a role but no allocations or frameworks subscribed. We should
> ensure that the map has an entry when there are reservations. Also, we can
> consolidate the reservation information and framework ids into the same map,
> e.g.:
> {code}
> struct Role
> {
> hashset<FrameworkID> frameworkIds;
> ResourceQuantities totalReservations;
> };
> hashmap<string, Role> roles;
> {code}
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