Sunil G created YARN-3784:
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Summary: Indicate preemption timout along with the list of
containers to AM (preemption message)
Key: YARN-3784
URL: https://issues.apache.org/jira/browse/YARN-3784
Project: Hadoop YARN
Issue Type: Bug
Components: resourcemanager
Reporter: Sunil G
Assignee: Sunil G
Currently during preemption, AM is notified with a list of containers which are
marked for preemption. Introducing a timeout duration also along with this
container list so that AM can know how much time it will get to do a graceful
shutdown to its containers (assuming one of preemption policy is loaded in AM).
This will help in decommissioning NM scenarios, where NM will be decommissioned
after a timeout (also killing containers on it). This timeout will be helpful
to indicate AM that those containers can be killed by RM forcefully after the
timeout.
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