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From Alex Clemmer <>
Subject Re: Review Request 54803: Fixed `SlaveTests` to pass when `HAS_AUTHENTICATION` is undefined.
Date Sat, 17 Dec 2016 23:01:07 GMT

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(Updated Dec. 17, 2016, 11:01 p.m.)

Review request for mesos, Adam B, Andrew Schwartzmeyer, Daniel Pravat, Greg Mann, John Kordich,
Joseph Wu, and Vinod Kone.


Replace instances of `Clock::resume` with `Clock::advance`.

Bugs: MESOS-6803

Repository: mesos


Currently, when `HAS_AUTHENTICATION` is undefined, the Agent will
use `delay` to schedule a random time in the future to register with the
Master, to avoid the thundering herd problem after a Master failover.
The authentication codepath, in contrast, schedules the registration

In tests where we have `Clock::pause`'d when we are supposed to be
registering the slave, the authention codepath will succeeed, while
no-authentication codepath will hang forever.

A much more detailed analysis of this situation exists in MESOS-6803.

This commit will resolve this issue for `slave_tests.cpp` by changing
the tests to not use `Clock::pause` when we are waiting for Agent

Diffs (updated)

  src/tests/slave_tests.cpp d956a326ef29bf29837e0587a14bae457147cbca 



Added `delay` to the call to `authenticate` in `Slave::detected`, ran tests to find failing
tests in `SlaveTest.*`, then fixed, then ran again.


Alex Clemmer

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