Qian Zhang created MESOS-9076:
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Summary: Mesos agent will be wrongly treated as unknown orphaned
container if `--cgroups_root` has a leading slash
Key: MESOS-9076
URL: https://issues.apache.org/jira/browse/MESOS-9076
Project: Mesos
Issue Type: Bug
Components: agent, containerization
Reporter: Qian Zhang
When agent is started with the following flags:
* --cgroups_root=<a value with a leading slash>, e.g., {{/mesos}}.
* --agent_subsystems=<some cgroups subsystems>, e.g., {{memory}}.
* --isolation=<some cgroups subsystems which contain the ones specified in
--agent_subsystems>, e.g., {{cgroups/cpu,cgroups/mem}}.
we will see the agent will be treated as an unknown orphaned container:
{code:java}
I0716 14:55:59.969400 3892 containerizer.cpp:718] Recovering Mesos containers
I0716 14:55:59.970304 3888 linux_launcher.cpp:299] Recovering Linux launcher
I0716 14:55:59.973687 3894 containerizer.cpp:1025] Recovering isolators
W0716 14:55:59.978680 3891 cgroups.cpp:352] Couldn't find the cgroup
'/mesos/slave' in hierarchy '/sys/fs/cgroup/cpu,cpuacct' for container slave
I0716 14:55:59.981603 3892 memory.cpp:478] Started listening for OOM events for
container slave
I0716 14:55:59.983178 3892 memory.cpp:590] Started listening on 'low' memory
pressure events for container slave
I0716 14:55:59.985761 3892 memory.cpp:590] Started listening on 'medium' memory
pressure events for container slave
I0716 14:55:59.987036 3892 memory.cpp:590] Started listening on 'critical'
memory pressure events for container slave
I0716 14:55:59.988668 3893 cgroups.cpp:320] Cleaning up unknown orphaned
container slave{code}
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