Karthik Kambatla created YARN-4752:
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Summary: [Umbrella] FairScheduler: Improve preemption
Key: YARN-4752
URL: https://issues.apache.org/jira/browse/YARN-4752
Project: Hadoop YARN
Issue Type: Bug
Components: fairscheduler
Affects Versions: 2.8.0
Reporter: Karthik Kambatla
A number of issues have been reported with respect to preemption in
FairScheduler along the lines of:
# FairScheduler preempts resources from nodes even if the resultant free
resources cannot fit the incoming request.
# Preemption doesn't preempt from sibling queues
# Preemption doesn't preempt from sibling apps under the same queue that is
over its fairshare
# ...
Filing this umbrella JIRA to group all the issues together and think of a
comprehensive solution.
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