Meng Zhu created MESOS-8293:
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Summary: Reservation may not be allocated when the role has no
quota.
Key: MESOS-8293
URL: https://issues.apache.org/jira/browse/MESOS-8293
Project: Mesos
Issue Type: Bug
Components: allocation
Reporter: Meng Zhu
Reservations that belong to a role that has no quota may not be allocated even
when the reserved resources are allocatable to the role.
This is because in the current implementation the reserved resources may be
counted towards the headroom left for unallocated quota limit in the second
stage allocation.
https://github.com/apache/mesos/blob/c844db9ac7c0cef59be87438c6781bfb71adcc42/src/master/allocator/mesos/hierarchical.cpp#L1764-L1767
Roles with quota do not have this issue because currently their reservations
are taken care of in the first stage.
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