[ https://issues.apache.org/jira/browse/MESOS-9688?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Benjamin Mahler reassigned MESOS-9688: -------------------------------------- Assignee: Benjamin Mahler > Quota is not enforced properly when subroles have reservations. > --------------------------------------------------------------- > > Key: MESOS-9688 > URL: https://issues.apache.org/jira/browse/MESOS-9688 > Project: Mesos > Issue Type: Bug > Components: allocation > Reporter: Meng Zhu > Assignee: Benjamin Mahler > Priority: Critical > Labels: resource-management > > Note: the discussion here concerns quota enforcement for top-level role, > setting quota on sublevel role is not supported. > If a subrole directly makes a reservation, the accounting of > `roleConsumedQuota` will be off: > https://github.com/apache/mesos/blob/master/src/master/allocator/mesos/hierarchical.cpp#L1703-L1705 > Specifically, in this formula: > `Consumed Quota = reservations + allocation - allocated reservations` > The `reservations` part does not account subrole's reservation to its > ancestors. If a reservation is made directly for role "a/b", its reservation > is accounted only for "a/b" but not for "a". Similarly, if a top role ( "a") > reservation is refined to a subrole ("a/b"), the current code first subtracts > the reservation from "a" and then track that under "a/b". > We should make it hierarchical-aware. > The "allocation" and "allocated reservations" are both tracked in the sorter > where the hierarchical relationship is considered -- allocations are added > hierarchically. -- This message was sent by Atlassian JIRA (v7.6.3#76005)