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(Updated March 18, 2016, 2:48 a.m.)

Review request for mesos, Adam B and Joerg Schad.

Bugs: MESOS-4849

Repository: mesos


Fixed a race in the resource offers tests.

Adding HTTP credentials to `StartSlave` in 'src/tests/mesos.cpp' has exposed a 
race condition in ResourceOffersTest.ResourceOfferWithMultipleSlaves. The test 
quickly runs `StartSlave` 10 times to create 10 agents. Under the covers, 
`StartSlave` writes data to disk, and it seems that with the additional data 
being written to disk for HTTP credentials, the filesystem operations for one 
`StartSlave` call were not completing before the next call.

By settling the clock in between each invocation of `StartSlave`, this patch 
fixes the race. The test is slowed considerably, but it is now reliable.


  src/tests/resource_offers_tests.cpp 1cf292ee7931207596f8f06677386bef5965ef15 

Diff: https://reviews.apache.org/r/44989/diff/


bin/mesos-tests.sh --gtest_repeat=1000 --gtest_break_on_failure=1` was used to 
test on both OSX and Ubuntu 14.04.


Greg Mann

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