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Joseph Wu commented on MESOS-4677: ---------------------------------- Managed to get some verbose logs + failure: {code} [ RUN ] LimitedCpuIsolatorTest.ROOT_CGROUPS_Pids_and_Tids I0223 18:50:51.567102 4178 linux_launcher.cpp:101] Using /sys/fs/cgroup/freezer as the freezer hierarchy for the Linux launcher I0223 18:50:51.567337 4178 resources.cpp:576] Parsing resources as JSON failed: cpus:0.5;mem:512 Trying semicolon-delimited string format instead I0223 18:50:51.573931 4192 cpushare.cpp:389] Updated 'cpu.shares' to 512 (cpus 0.5) for container d1e8db7a-d46e-42a9-9d4c-155edcf17f33 I0223 18:50:51.584337 4178 linux_launcher.cpp:304] Cloning child process with flags = ../../src/tests/containerizer/isolator_tests.cpp:807: Failure Value of: usage.get().threads() Actual: 0 Expected: 1U Which is: 1 I0223 18:50:51.614691 4193 cgroups.cpp:2427] Freezing cgroup /sys/fs/cgroup/freezer/mesos/d1e8db7a-d46e-42a9-9d4c-155edcf17f33 I0223 18:50:51.619819 4198 cgroups.cpp:1409] Successfully froze cgroup /sys/fs/cgroup/freezer/mesos/d1e8db7a-d46e-42a9-9d4c-155edcf17f33 after 5.063936ms I0223 18:50:51.625041 4199 cgroups.cpp:2445] Thawing cgroup /sys/fs/cgroup/freezer/mesos/d1e8db7a-d46e-42a9-9d4c-155edcf17f33 I0223 18:50:51.630051 4199 cgroups.cpp:1438] Successfullly thawed cgroup /sys/fs/cgroup/freezer/mesos/d1e8db7a-d46e-42a9-9d4c-155edcf17f33 after 4.97024ms [ FAILED ] LimitedCpuIsolatorTest.ROOT_CGROUPS_Pids_and_Tids (183 ms) {code} The only difference between this and a successful run is the failed expectation. > LimitedCpuIsolatorTest.ROOT_CGROUPS_Pids_and_Tids is flaky. > ----------------------------------------------------------- > > Key: MESOS-4677 > URL: https://issues.apache.org/jira/browse/MESOS-4677 > Project: Mesos > Issue Type: Bug > Components: test > Affects Versions: 0.27 > Reporter: Bernd Mathiske > Labels: flaky, test > > This test fails very often when run on CentOS 7, but may also fail elsewhere > sometimes. Unfortunately, it tends to only fail when --verbose is not set. > The output is this: > {noformat} > [21:45:21][Step 8/8] [ RUN ] > LimitedCpuIsolatorTest.ROOT_CGROUPS_Pids_and_Tids > [21:45:21][Step 8/8] ../../src/tests/containerizer/isolator_tests.cpp:807: > Failure > [21:45:21][Step 8/8] Value of: usage.get().threads() > [21:45:21][Step 8/8] Actual: 0 > [21:45:21][Step 8/8] Expected: 1U > [21:45:21][Step 8/8] Which is: 1 > [21:45:21][Step 8/8] [ FAILED ] > LimitedCpuIsolatorTest.ROOT_CGROUPS_Pids_and_Tids (94 ms) > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)