Niklas Quarfot Nielsen created MESOS-1094:
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Summary: Introduce pid namespace abstraction to stout
Key: MESOS-1094
URL: https://issues.apache.org/jira/browse/MESOS-1094
Project: Mesos
Issue Type: Improvement
Reporter: Niklas Quarfot Nielsen
Assignee: Niklas Quarfot Nielsen
Introducing PID namespacing could simplify signal escalation and process
control in for example the command executor and pluggable containerizer.
Along the lines of the Fork Exec abstraction in stout, I suggest that we add an
abstraction for Linux namespaces.
LinuxNamespace(PID /* | IPC | mount | ...*/, Fork(Exec("sleep 10"))
It would be guarded or add convenience methods to ensure system support, for
example bool LinuxNamespace::supports(PID /* | IPC | ... */) or simply let the
namespace fall back to regular fork/exec.
I have a proof-of-concept version of the command executor which use PID
namespaces (in combination with delay/escalation), and it feels like details
around stack allocation and management could be captured in a new abstraction
and make it a neat and nice subsystem to use.
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