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https://issues.apache.org/jira/browse/MESOS-4038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15092297#comment-15092297
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Greg Mann commented on MESOS-4038:
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[~nfnt] I tested on my CentOS 6.6 VM and I agree with your analysis. The tests
failed with a fresh system and succeeded when {{perf_event}} was added to
{{cgconfig.conf}}. Although, it looks like the tests are attempting to mount
the {{perf_event}} subsystem but failing to do so because the subsystem's
directory already exists, but it doesn't contain any file descriptors. Perhaps
{{cgroups::mount}} should check for this and handle it appropriately?
> SlaveRecoveryTests, UserCgroupIsolatorTests fail on CentOS 6.6
> --------------------------------------------------------------
>
> Key: MESOS-4038
> URL: https://issues.apache.org/jira/browse/MESOS-4038
> Project: Mesos
> Issue Type: Bug
> Environment: CentOS 6.6
> Reporter: Greg Mann
> Assignee: Jan Schlicht
> Labels: mesosphere, test-failure
>
> All {{SlaveRecoveryTest.\*}} tests,
> {{MesosContainerizerSlaveRecoveryTest.\*}} tests, and
> {{UserCgroupIsolatorTest*}} tests fail on CentOS 6.6 with {{TypeParam =
> mesos::internal::slave::MesosContainerizer}}. They all fail with the same
> error:
> {code}
> [----------] 1 test from SlaveRecoveryTest/0, where TypeParam =
> mesos::internal::slave::MesosContainerizer
> [ RUN ] SlaveRecoveryTest/0.ReconnectExecutor
> ../../src/tests/mesos.cpp:722: Failure
> cgroups::mount(hierarchy, subsystem): '/cgroup/perf_event' already exists in
> the file system
> -------------------------------------------------------------
> We cannot run any cgroups tests that require
> a hierarchy with subsystem 'perf_event'
> because we failed to find an existing hierarchy
> or create a new one (tried '/cgroup/perf_event').
> You can either remove all existing
> hierarchies, or disable this test case
> (i.e., --gtest_filter=-SlaveRecoveryTest/0.*).
> -------------------------------------------------------------
> ../../src/tests/mesos.cpp:776: Failure
> cgroups: '/cgroup/perf_event' is not a valid hierarchy
> [ FAILED ] SlaveRecoveryTest/0.ReconnectExecutor, where TypeParam =
> mesos::internal::slave::MesosContainerizer (8 ms)
> [----------] 1 test from SlaveRecoveryTest/0 (9 ms total)
> [----------] Global test environment tear-down
> [==========] 1 test from 1 test case ran. (15 ms total)
> [ PASSED ] 0 tests.
> [ FAILED ] 1 test, listed below:
> [ FAILED ] SlaveRecoveryTest/0.ReconnectExecutor, where TypeParam =
> mesos::internal::slave::MesosContainerizer
> {code}
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