Kevin Klues created MESOS-6540:
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Summary: Pass the forked pid from `containerizer launch` to the
agent and checkpoint it.
Key: MESOS-6540
URL: https://issues.apache.org/jira/browse/MESOS-6540
Project: Mesos
Issue Type: Task
Reporter: Kevin Klues
Assignee: Kevin Klues
Right now the agent only knows about the pid of the "init" process forked by
{{launcher->fork()}}. However, in order to properly enter the namespaces of a
task for a nested container, we actually need the pid of the process that gets
launched by the {{containerizer launch}} binary.
Using this pid, isolators can properly enter the namespaces of the actual
*task* or *executor* launched by the {{containerizer launch}} binary instead of
just the namespaces of the "init" process (which may be different).
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