Niklas Quarfot Nielsen created MESOS-1031:
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Summary: Command executor should support signal escalation.
Key: MESOS-1031
URL: https://issues.apache.org/jira/browse/MESOS-1031
Project: Mesos
Issue Type: Improvement
Components: slave
Reporter: Niklas Quarfot Nielsen
To make command executor shutdown more graceful, the sequence could allow
signal escalation with initial SIGTERM followed by SIGKILL after an appropriate
timeout. This became apparent when we where using the command executor for
pluggable containerization (see
https://issues.apache.org/jira/browse/MESOS-816).
The escalation would need to prevent shutdown of the command executor until
child processes have actually stopped and if processes are still alive after
the timeout, send SIGKILL to the original process group.
Further more, additional unit tests could be added to verify the new escalation
i.e. add or modify a test-executor so it becomes irresponsive to SIGTERM and/or
leaves behind orphan processes.
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