> On March 18, 2016, 9:47 a.m., Adam B wrote: > > "The test is slowed considerably" - Can you provide some stats on how fast > > it is before/after the patch?
Good call - timing information has been added, and it actually wasn't as bad as I thought. - Greg ----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/44989/#review124159 ----------------------------------------------------------- On March 18, 2016, 6:55 p.m., Greg Mann wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/44989/ > ----------------------------------------------------------- > > (Updated March 18, 2016, 6:55 p.m.) > > > Review request for mesos, Adam B and Joerg Schad. > > > Bugs: MESOS-4849 > https://issues.apache.org/jira/browse/MESOS-4849 > > > Repository: mesos > > > Description > ------- > > 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 slower, but it is now reliable. Running the test > 3 times, the old implementation gives an average runtime of 265ms, while the > new one runs in an average of 359ms. > > > Diffs > ----- > > src/tests/resource_offers_tests.cpp > 1cf292ee7931207596f8f06677386bef5965ef15 > > Diff: https://reviews.apache.org/r/44989/diff/ > > > Testing > ------- > > `GTEST_FILTER="ResourceOffersTest.ResourceOfferWithMultipleSlaves" > bin/mesos-tests.sh --gtest_repeat=1000 --gtest_break_on_failure=1` was used > to test on both OSX and Ubuntu 14.04. > > > Thanks, > > Greg Mann > >
