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Greg Mann commented on MESOS-4053: ---------------------------------- I just ran into this while testing 0.27.2-rc1 on Ubuntu 14.04, using gcc, with libevent and SSL enabled. This was after running several rounds of tests on this machine with different builds of Mesos: {code} [ RUN ] MemoryPressureMesosTest.CGROUPS_ROOT_Statistics I0301 06:36:33.444818 45724 process.cpp:2492] Spawned process files@172.31.18.71:50382 I0301 06:36:33.444849 45739 process.cpp:2502] Resuming files@172.31.18.71:50382 at 2016-03-01 06:36:33.444837888+00:00 I0301 06:36:33.445101 45745 process.cpp:2502] Resuming help@172.31.18.71:50382 at 2016-03-01 06:36:33.445021952+00:00 I0301 06:36:33.458566 45724 process.cpp:2492] Spawned process __latch__(2)@172.31.18.71:50382 I0301 06:36:33.458591 45746 process.cpp:2502] Resuming __gc__@172.31.18.71:50382 at 2016-03-01 06:36:33.458576896+00:00 I0301 06:36:33.458600 45738 process.cpp:2502] Resuming __latch__(2)@172.31.18.71:50382 at 2016-03-01 06:36:33.458589952+00:00 I0301 06:36:33.458652 45738 process.cpp:2607] Cleaning up __latch__(2)@172.31.18.71:50382 ../../src/tests/mesos.cpp:955: Failure (cgroups::destroy(hierarchy, cgroup)).failure(): Failed to remove cgroup '/sys/fs/cgroup/perf_event/mesos_test': Device or resource busy ----------------------------------------------------------- We're very sorry but we can't seem to destroy existing cgroups that we likely created as part of an earlier invocation of the tests. Please manually destroy the cgroup at '/sys/fs/cgroup/perf_event/mesos_test' by first manually killing all the processes found in the file at '/sys/fs/cgroup/perf_event/mesos_test/tasks' ----------------------------------------------------------- I0301 06:36:33.458739 45744 process.cpp:2502] Resuming __gc__@172.31.18.71:50382 at 2016-03-01 06:36:33.458727936+00:00 I0301 06:36:33.458854 45749 process.cpp:2502] Resuming AuthenticationRouter(1)@172.31.18.71:50382 at 2016-03-01 06:36:33.458842112+00:00 I0301 06:36:33.461118 45724 process.cpp:2492] Spawned process __latch__(3)@172.31.18.71:50382 I0301 06:36:33.461139 45752 process.cpp:2502] Resuming __gc__@172.31.18.71:50382 at 2016-03-01 06:36:33.461127936+00:00 I0301 06:36:33.461161 45748 process.cpp:2502] Resuming __latch__(3)@172.31.18.71:50382 at 2016-03-01 06:36:33.461143040+00:00 ../../src/tests/mesos.cpp:989: Failure (cgroups::destroy(hierarchy, cgroup)).failure(): Failed to remove cgroup '/sys/fs/cgroup/perf_event/mesos_test': Device or resource busy I0301 06:36:33.461216 45748 process.cpp:2607] Cleaning up __latch__(3)@172.31.18.71:50382 I0301 06:36:33.461310 45742 process.cpp:2502] Resuming files@172.31.18.71:50382 at 2016-03-01 06:36:33.461299968+00:00 I0301 06:36:33.461315 45740 process.cpp:2502] Resuming __gc__@172.31.18.71:50382 at 2016-03-01 06:36:33.461304064+00:00 I0301 06:36:33.461503 45742 process.cpp:2607] Cleaning up files@172.31.18.71:50382 [ FAILED ] MemoryPressureMesosTest.CGROUPS_ROOT_Statistics (17 ms) {code} > MemoryPressureMesosTest tests fail on CentOS 6.6 > ------------------------------------------------ > > Key: MESOS-4053 > URL: https://issues.apache.org/jira/browse/MESOS-4053 > Project: Mesos > Issue Type: Bug > Environment: CentOS 6.6 > Reporter: Greg Mann > Assignee: Benjamin Hindman > Labels: mesosphere, test-failure > > {{MemoryPressureMesosTest.CGROUPS_ROOT_Statistics}} and > {{MemoryPressureMesosTest.CGROUPS_ROOT_SlaveRecovery}} fail on CentOS 6.6. It > seems that mounted cgroups are not properly cleaned up after previous tests, > so multiple hierarchies are detected and thus an error is produced: > {code} > [ RUN ] MemoryPressureMesosTest.CGROUPS_ROOT_Statistics > ../../src/tests/mesos.cpp:849: Failure > Value of: _baseHierarchy.get() > Actual: "/cgroup" > Expected: baseHierarchy > Which is: "/tmp/mesos_test_cgroup" > ------------------------------------------------------------- > Multiple cgroups base hierarchies detected: > '/tmp/mesos_test_cgroup' > '/cgroup' > Mesos does not support multiple cgroups base hierarchies. > Please unmount the corresponding (or all) subsystems. > ------------------------------------------------------------- > ../../src/tests/mesos.cpp:932: Failure > (cgroups::destroy(hierarchy, cgroup)).failure(): Failed to remove cgroup > '/tmp/mesos_test_cgroup/perf_event/mesos_test': Device or resource busy > [ FAILED ] MemoryPressureMesosTest.CGROUPS_ROOT_Statistics (12 ms) > [ RUN ] MemoryPressureMesosTest.CGROUPS_ROOT_SlaveRecovery > ../../src/tests/mesos.cpp:849: Failure > Value of: _baseHierarchy.get() > Actual: "/cgroup" > Expected: baseHierarchy > Which is: "/tmp/mesos_test_cgroup" > ------------------------------------------------------------- > Multiple cgroups base hierarchies detected: > '/tmp/mesos_test_cgroup' > '/cgroup' > Mesos does not support multiple cgroups base hierarchies. > Please unmount the corresponding (or all) subsystems. > ------------------------------------------------------------- > ../../src/tests/mesos.cpp:932: Failure > (cgroups::destroy(hierarchy, cgroup)).failure(): Failed to remove cgroup > '/tmp/mesos_test_cgroup/perf_event/mesos_test': Device or resource busy > [ FAILED ] MemoryPressureMesosTest.CGROUPS_ROOT_SlaveRecovery (7 ms) > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)