Szilard Nemeth created YARN-8841:
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             Summary: Analyze if ApplicationMasterService schedule tests can be 
applied to all scheduler types
                 Key: YARN-8841
                 URL: https://issues.apache.org/jira/browse/YARN-8841
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: test
            Reporter: Szilard Nemeth
            Assignee: Szilard Nemeth


This is a follow-up jira of YARN-8732.

1. testResourceTypes() checks all three schedulers, fifo, capacity scheduler 
and fair scheduler. How about we split them into three classes respectively, 
even though it might mean some code duplication?

2. testUpdateTrackingUrl() is now run for capacity scheduler only. I think we 
shall run it with all three schedulers. So is  
testInvalidIncreaseDecreaseRequest() in theory (If the other two schedulers do 
not support increase/decrease requests, let's keep it with capacity scheduler 
only.

3. All the unit tests in ApplicationMasterServiceTestBase are applicable to all 
three schedulers, but we are just running them with Fifo scheduler. We should 
probably enable them for capacity and fair scheduler too.



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