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From Meng Zhu <>
Subject Review Request 64698: Made quota headroom calculation on a per-role basis.
Date Tue, 19 Dec 2017 03:01:21 GMT

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Review request for mesos and Benjamin Mahler.

Bugs: MESOS-8339

Repository: mesos


If a role has more reservation than its quota, the
current quota headroom calculation is insufficient
in guaranteeing quota allocation.
See MESOS-8339.

This patch fixes this bug by calculating quota headroom
on a per-role basis (before aggregating) and no longer
counting unallocated reservations (including quota role's
unallocated reservations) towards quota headroom.


  src/master/allocator/mesos/hierarchical.cpp 2cabafeb7ba0cda482ea4464f19730d2ef30cc5e 



make check and a dedicated test #64699


Meng Zhu

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