Wangda Tan created YARN-7457:
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Summary: Delay scheduling should be an individual policy instead
of part of scheduler implementation
Key: YARN-7457
URL: https://issues.apache.org/jira/browse/YARN-7457
Project: Hadoop YARN
Issue Type: Sub-task
Reporter: Wangda Tan
Assignee: Wangda Tan
Currently, different schedulers have slightly different delay scheduling
implementations. Ideally we should make delay scheduling independent from
scheduler implementation. Benefits of doing this:
1) Applications can choose which delay scheduling policy to use, it could be
time-based / missed-opportunistic-based or whatever new delay scheduling policy
supported by the cluster. Now it is global config of scheduler.
2) Make scheduler implementations simpler and reusable.
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