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Posted to yarn-dev@hadoop.apache.org by "Wangda Tan (JIRA)" <ji...@apache.org> on 2016/12/29 20:13:58 UTC

[jira] [Created] (YARN-6040) [YARN-5139] Remove usage of ResourceRequest from AppSchedulerInfo / SchedulerApplicationAttempt

Wangda Tan created YARN-6040:
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             Summary: [YARN-5139] Remove usage of ResourceRequest from AppSchedulerInfo / SchedulerApplicationAttempt
                 Key: YARN-6040
                 URL: https://issues.apache.org/jira/browse/YARN-6040
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Wangda Tan
            Assignee: Wangda Tan


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.



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