Hello all! It's recently come up in MESOS-3964 ( https://issues.apache.org/jira/browse/MESOS-3964) that some kernels currently in use (including in the latest Debian) do not have cgroup support for CFS. Due to this, LimitedCpuIsolatorTest.ROOT_CGROUPS_Cfs and LimitedCpuIsolatorTest.ROOT_CGROUPS_Cfs_Big_Quota will crash. To fix this, we are proposing to check for the existence of the relevant CFS cgroups when the test suite is run, and filter out the offending tests if the cgroups are missing.
I wanted to check with the community before embarking upon this change, just in case the absence of these cgroups may have ramifications for the isolation & containerization code. Feel free to comment on the JIRA if you have any thoughts or concerns! Thanks! Greg
