Details
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Sub-task
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Status: Resolved
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Major
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Resolution: Fixed
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None
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Reviewed
Description
As mentioned by YARN-5906, currently schedulers are using ResourceRequest heavily so it will be very hard to adopt the new PowerfulResourceRequest (YARN-4902).
This JIRA is the 2nd step of refactoring, which remove usage of ResourceRequest from AppSchedulingInfo / SchedulerApplicationAttempt. Instead of returning ResourceRequest, it returns a lightweight and API-independent object - PendingAsk.
The only remained ResourceRequest API of AppSchedulingInfo will be used by web service to get list of ResourceRequests.
So after this patch, usage of ResourceRequest will be isolated inside AppSchedulingInfo, so it will be more flexible to update internal data structure and upgrade old ResourceRequest API to new.