Thomas Marshall created MESOS-449:
-------------------------------------
Summary: CgroupsTests don't do proper cleanup
Key: MESOS-449
URL: https://issues.apache.org/jira/browse/MESOS-449
Project: Mesos
Issue Type: Bug
Reporter: Thomas Marshall
On Ubuntu 12.04, I get failures similar to the following:
[----------] 1 test from CgroupsNoHierarchyTest
[ RUN ]
CgroupsNoHierarchyTest.ROOT_CGROUPS_NOHIERARCHY_MountUnmountHierarchy
../../src/tests/cgroups_tests.cpp:250: Failure
cgroups::mount(TEST_CGROUPS_HIERARCHY, "cpu,memory"): 'cpu' is already attached
to another hierarchy
[ FAILED ]
CgroupsNoHierarchyTest.ROOT_CGROUPS_NOHIERARCHY_MountUnmountHierarchy (0 ms)
[----------] 1 test from CgroupsNoHierarchyTest (0 ms total)
[----------] 1 test from CgroupsAnyHierarchyWithCpuAcctMemoryTest
[ RUN ] CgroupsAnyHierarchyWithCpuAcctMemoryTest.ROOT_CGROUPS_Stat
../../src/tests/cgroups_tests.cpp:116: Failure
cgroups::mount(TEST_CGROUPS_HIERARCHY, subsystems): 'memory' is already
attached to another hierarchy
-------------------------------------------------------------
We cannot run any cgroups tests that require
a hierarchy with subsystems 'cpuacct,memory'
because we failed to find an existing hierarchy
or create a new one. You can either remove all existing
hierarchies, or disable this test case
(i.e., --gtest_filter=-CgroupsAnyHierarchyWithCpuAcctMemoryTest.*).
-------------------------------------------------------------
../../src/tests/cgroups_tests.cpp:147: Failure
exists: '' is not a valid hierarchy
[ FAILED ] CgroupsAnyHierarchyWithCpuAcctMemoryTest.ROOT_CGROUPS_Stat (0 ms)
[----------] 1 test from CgroupsAnyHierarchyWithCpuAcctMemoryTest (0 ms total)
[----------] 3 tests from CgroupsAnyHierarchyWithCpuMemoryFreezerTest
[ RUN ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Freeze
../../src/tests/cgroups_tests.cpp:116: Failure
cgroups::mount(TEST_CGROUPS_HIERARCHY, subsystems): 'cpu' is already attached
to another hierarchy
-------------------------------------------------------------
We cannot run any cgroups tests that require
a hierarchy with subsystems 'cpu,memory,freezer'
because we failed to find an existing hierarchy
or create a new one. You can either remove all existing
hierarchies, or disable this test case
(i.e., --gtest_filter=-CgroupsAnyHierarchyWithCpuMemoryFreezerTest.*).
-------------------------------------------------------------
../../src/tests/cgroups_tests.cpp:147: Failure
exists: '' is not a valid hierarchy
[ FAILED ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Freeze (1
ms)
[ RUN ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Kill
../../src/tests/cgroups_tests.cpp:116: Failure
cgroups::mount(TEST_CGROUPS_HIERARCHY, subsystems): 'cpu' is already attached
to another hierarchy
-------------------------------------------------------------
We cannot run any cgroups tests that require
a hierarchy with subsystems 'cpu,memory,freezer'
because we failed to find an existing hierarchy
or create a new one. You can either remove all existing
hierarchies, or disable this test case
(i.e., --gtest_filter=-CgroupsAnyHierarchyWithCpuMemoryFreezerTest.*).
-------------------------------------------------------------
../../src/tests/cgroups_tests.cpp:147: Failure
exists: '' is not a valid hierarchy
[ FAILED ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Kill (1
ms)
[ RUN ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Destroy
../../src/tests/cgroups_tests.cpp:116: Failure
cgroups::mount(TEST_CGROUPS_HIERARCHY, subsystems): 'cpu' is already attached
to another hierarchy
-------------------------------------------------------------
We cannot run any cgroups tests that require
a hierarchy with subsystems 'cpu,memory,freezer'
because we failed to find an existing hierarchy
or create a new one. You can either remove all existing
hierarchies, or disable this test case
(i.e., --gtest_filter=-CgroupsAnyHierarchyWithCpuMemoryFreezerTest.*).
-------------------------------------------------------------
../../src/tests/cgroups_tests.cpp:147: Failure
exists: '' is not a valid hierarchy
[ FAILED ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Destroy
(0 ms)
[----------] 3 tests from CgroupsAnyHierarchyWithCpuMemoryFreezerTest (2 ms
total)
[----------] Global test environment tear-down
[==========] 19 tests from 6 test cases ran. (12691 ms total)
[ PASSED ] 14 tests.
[ FAILED ] 5 tests, listed below:
[ FAILED ]
CgroupsNoHierarchyTest.ROOT_CGROUPS_NOHIERARCHY_MountUnmountHierarchy
[ FAILED ] CgroupsAnyHierarchyWithCpuAcctMemoryTest.ROOT_CGROUPS_Stat
[ FAILED ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Freeze
[ FAILED ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Kill
[ FAILED ] CgroupsAnyHierarchyWithCpuMemoryFreezerTest.ROOT_CGROUPS_Destroy
I believe this is because the ASSERT_FUTURE_WILL_SUCCEED in
Cgroups*Test::TearDown() doesn't actually wait for the cgroups to be clean up,
meaning sometimes the next test starts before the previous tests cgroups are
destroyed.
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