Tao Jie created YARN-4462:
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Summary: Scheduler should prevent certain application from being
preempted
Key: YARN-4462
URL: https://issues.apache.org/jira/browse/YARN-4462
Project: Hadoop YARN
Issue Type: Improvement
Components: scheduler
Affects Versions: 2.6.0
Reporter: Tao Jie
When scheduler preemption is enabled, applications could be preempted if they
obtain resource over they should take.
When a mapreduce application is preempted some resource, it just runs slower.
However, when the preempted application is a long-run service, such as tomcat
running in slider, the service would fail.
So we should have a flag for application to indicate the scheduler that those
application should not be preempted.
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