Sunil G created YARN-3937:
Summary: Introducing REMOVE_CONTAINER_FROM_PREEMPTION event to
notify Scheduler and AM when a container is no longer to be preempted
Project: Hadoop YARN
Issue Type: Bug
Affects Versions: 2.7.1
Reporter: Sunil G
Assignee: Sunil G
As discussed in YARN-3784, there are scenarios like few other applications
released containers or same application has revoked its resource requests. In
these cases, we may not have to preempt a container which would have been
marked for preemption earlier.
Introduce a new event to remove such containers if present in the
to-be-preempted list of scheduler or inform AM about such a scenario.
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