Greg Mann created MESOS-8488:
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Summary: Docker bug can cause unkillable tasks
Key: MESOS-8488
URL: https://issues.apache.org/jira/browse/MESOS-8488
Project: Mesos
Issue Type: Improvement
Affects Versions: 1.5.0
Reporter: Greg Mann
Due to an [issue on the Moby
project|https://github.com/moby/moby/issues/33820], it's possible for Docker
versions 1.13 and later to fail to catch a container exit, so that the {{docker
run}} command which was used to launch the container will never return. This
can lead to the Docker executor becoming stuck in a state where it believes the
container is still running and cannot be killed.
We should update the Docker executor to ensure that containers stuck in such a
state cannot cause unkillable Docker executors/tasks.
One way to do this would be a timeout, after which the Docker executor will
commit suicide if a kill task attempt has not succeeded. However, if we do this
we should also ensure that in the case that the container was actually still
running, either the Docker daemon or the DockerContainerizer would clean up the
container when it does exit.
Another option might be for the Docker executor to directly {{wait()}} on the
container's Linux PID, in order to notice when the container exits.
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