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(Updated July 11, 2019, 4:01 p.m.) Review request for mesos, Benjamin Bannier, Benjamin Mahler, Greg Mann, and Vinod Kone. Changes ------- Fixed two cases where the agent would not be transitioned to DRAINED: * When an agent is already technically DRAINED before draining. * When an agent is already technically DRAINED and unreachable, starts draining, and then reregisters. Bugs: MESOS-9814 https://issues.apache.org/jira/browse/MESOS-9814 Repository: mesos Description ------- This adds logic in the master to detect when a DRAINING agent can be transitioned into a DRAINED state. When this happens, the new state is checkpointed into the registry and, if the agent is to be marked "gone", the master will remove the agent. Diffs (updated) ----- src/master/http.cpp b42ebb953e0510e83ec6bd041cbddbeb8f60067c src/master/master.hpp 23dafe746b6f9b3d70ad7220f54c4d49068b8af8 src/master/master.cpp 5247377c2e7e92b9843dd4c9d28f92ba679ad742 Diff: https://reviews.apache.org/r/71008/diff/4/ Changes: https://reviews.apache.org/r/71008/diff/3-4/ Testing ------- TODO: Need to write some unit tests. I'll want to rebase onto the agent changes so that there is more detectable stuff in the tests. Thanks, Joseph Wu