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From Joseph Wu <>
Subject Review Request 71041: Added best-effort validation for DRAIN_AGENT master call.
Date Tue, 09 Jul 2019 19:29:17 GMT

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Review request for mesos, Benjamin Bannier, Benjamin Mahler, Greg Mann, and Vinod Kone.

Bugs: MESOS-9814

Repository: mesos


This adds two cases which the master cannot deterministically enforce
when using the DRAIN_AGENT call.  The draining feature is currently
incompatible with maintenance schedules and older versions of the
Mesos agent.  However, in both cases, an agent can reregister with
incompatible info after starting to drain.  Also, unreachable agents
do not have enough info to enforce either case.

These are unexpected cases and are not expected to cause any problems
if circumvented.  However, the agent draining feature is also not
expected to work correctly if circumvented.


  src/master/http.cpp b42ebb953e0510e83ec6bd041cbddbeb8f60067c 





Joseph Wu

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