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https://issues.apache.org/jira/browse/MESOS-5544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15438587#comment-15438587
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Qian Zhang commented on MESOS-5544:
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[~jieyu], Can you please let me know why the executor will be killed when the
agent is crashes (even the agent is running in a Docker container with
--pid=host)? I thought if the executor is launched by a framework with
checkpoint enabled, it will be still there when the agent crashes.
> Support running Mesos agent in a Docker container.
> --------------------------------------------------
>
> Key: MESOS-5544
> URL: https://issues.apache.org/jira/browse/MESOS-5544
> Project: Mesos
> Issue Type: Improvement
> Reporter: Jie Yu
>
> Currently, this does not work if one tries to use Mesos containerizer.
> The main problem is that we want to make sure the executor is not killed when
> agent crashes. So we have to use --pid=host so that the agent is in the host
> pid namespace.
> But that is not sufficient, Docker daemon will put agent into all cgroups
> available on the host. We need to make sure we migrate the executor pid out
> of those cgroups so that when agent crashes, executors are not killed.
> Also, when start the agent container, volumes need to be setup properly so
> that any mounts under agent's work_dir will be propagate back to the host
> mount table. This is to make sure we can recover those mounts after agent
> restarts. This is also true for those mounts that are needed by some isolator
> (e.g., network/cni isolator).
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