[jira] [Created] (YARN-1569) For handl(SchedulerEvent) in FifoScheduler and CapacityScheduler, SchedulerEvent should get checked (instanceof) for appropriate type before casting

[Junping Du (JIRA)]

Junping Du created YARN-1569:
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             Summary: For handl(SchedulerEvent) in FifoScheduler and 
CapacityScheduler, SchedulerEvent should get checked (instanceof) for 
appropriate type before casting
                 Key: YARN-1569
                 URL: https://issues.apache.org/jira/browse/YARN-1569
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: scheduler
            Reporter: Junping Du
            Priority: Minor


As following: http://wiki.apache.org/hadoop/CodeReviewChecklist, we should 
always check appropriate type before casting. handle(SchedulerEvent) in 
FifoScheduler and CapacityScheduler didn't check so far (no bug there now) but 
should be improved as FairScheduler.



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