Jie Yu created MESOS-4996:
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Summary: 'containerizer->update' will always fail after killing a
docker container.
Key: MESOS-4996
URL: https://issues.apache.org/jira/browse/MESOS-4996
Project: Mesos
Issue Type: Bug
Affects Versions: 0.27.2, 0.28.0, 0.27.1, 0.27.0, 0.26.0, 0.25.0, 0.24.1,
0.24.0, 0.23.1, 0.23.0
Reporter: Jie Yu
Priority: Critical
Here is the sequence of events:
1) the framework does a killTask
2) killTask is handled by the docker executor
3) the docker executor calls docker->stop
4) docker container terminated
5) docker executor sends TASK_KILLED to the agent
6) since TASK_KILLED is terminal, agent calls containerizer->update()
7) DockerContainerizerProcess::update is called
8) Since pid is known, it tries to get the cgroups associated with the pid
9) Since pid has gone, cgroups::hierarchy("cpu") will return Error
10) We got "Failed to determine the cgroup hierarchy where the 'cpu' subsystem
is mounted: Failed to read /proc/4390/cgroup: Failed to open file
'/proc/4390/cgroup': No such file or directory"
11) containerizer->update fail, agent will call containerizer->destroy
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