[jira] [Created] (YARN-5457) Refactor DistributedScheduling framework to pull out common functionality

["Arun Suresh (JIRA)" <ji...@apache.org>]

Arun Suresh created YARN-5457:
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             Summary: Refactor DistributedScheduling framework to pull out common functionality
                 Key: YARN-5457
                 URL: https://issues.apache.org/jira/browse/YARN-5457
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Arun Suresh


Opening this JIRA to track the following refactoring missed in YARN-5113:

* Move {{OpportunisticContainerAllocator}} to yarn-server-common
** Fix the constructor to just pass in the appropriate TokenSecretManager instead of the NodeStatusUpdater.
* Move the {{DistributedScheduler}} class to yarn-server-common and probably move all the app specific bookkeeping to the SchedulerNode.
* Rename {{DistributedSchedulingAMService}} to {{OpportunisticSchedulingAMService}}
** modify the {{getServer}} method to enable the new protocol only if DistributedScheduling is enabled.
** modify the allocate method to intercept all OPPORTUNISTIC requests and use the {{OpportunisticContainerAllocator}} to allocate and create the containers.



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