Arun Suresh created YARN-6808:
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Summary: Allow Schedulers to return OPPORTUNISTIC containers when
queues go over configured capacity
Key: YARN-6808
URL: https://issues.apache.org/jira/browse/YARN-6808
Project: Hadoop YARN
Issue Type: New Feature
Reporter: Arun Suresh
This is based on discussions with [~kasha] and [~kkaranasos].
Currently, when a Queues goes over capacity, apps on starved queues must wait
either for containers to complete or for them to be pre-empted by the scheduler
to get resources.
This JIRA proposes to allow Schedulers to:
# Allocate all containers over the configured queue capacity/weight as
OPPORTUNISTIC.
# Auto-promote running OPPORTUNISTIC containers of apps as and when their
GUARANTEED containers complete.
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