[MESOS-4677] LimitedCpuIsolatorTest.ROOT_CGROUPS_Pids_and_Tids is flaky.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.27.0
• Fix Version/s: 0.28.0
• Component/s: test
• Labels: flaky test
• Sprint: Mesosphere Sprint 29
• Assignee: Joseph Wu
• Reporter: Bernd Mathiske
• Created: 15/Feb/16 17:42
• Updated: 03/Mar/16 22:51
• Resolved: 25/Feb/16 10:57

Description

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:

[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)