Jagadish created SAMZA-1687:
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Summary: Prioritize preferred host requests over ANY-HOST requests
Key: SAMZA-1687
URL: https://issues.apache.org/jira/browse/SAMZA-1687
Project: Samza
Issue Type: Bug
Reporter: Jagadish
Assignee: Jagadish
Yarn enforces these two checks:
1. ANY_HOST requests should always be made with relax-locality = true
2. A request with relax-locality = false should not be in the same priority as
another with relax-locality = true
Since the Samza AM makes preferred-host requests with relax-locality = false,
it follows that ANY_HOST requests should specify a different priority-level. We
can safely set priority of preferred-host requests to be higher than any-host
requests since data-locality is critical.
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