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Posted to yarn-issues@hadoop.apache.org by "Weihao Zheng (Jira)" <ji...@apache.org> on 2021/09/09 06:52:00 UTC
[jira] [Created] (YARN-10938) Support reservation scheduling
enabled switch for capacity scheduler
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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