Weihao Zheng created YARN-10938:
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Summary: Support reservation scheduling enabled switch for
capacity scheduler
Key: YARN-10938
URL: https://issues.apache.org/jira/browse/YARN-10938
Project: Hadoop YARN
Issue Type: Improvement
Components: capacity scheduler
Reporter: Weihao Zheng
Assignee: Weihao Zheng
Currently the CapacityScheduler uses reservations in order to handle requests
for large containers and the fact there might not currently be enough space
available on a single host. But this algorithm is not suitable for small
cluster which only have very limited resources. So we can add a switch property
in capacity scheduler's configuration to avoid reservation scheduling in these
use cases.
CHANGES:
Add {{"yarn.scheduler.capacity.reservation.enabled"}} in capacity scheduler's
configuration.
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