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https://issues.apache.org/jira/browse/MESOS-1031?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13911024#comment-13911024
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Benjamin Mahler commented on MESOS-1031:
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Finally we can remove the TODO! :)
{code: title=executor.cpp}
// TODO(benh): Do kill escalation (begin with SIGTERM, after n
// seconds escalate to SIGKILL).
{code}
> 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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