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Posted to yarn-dev@hadoop.apache.org by "Adam Antal (Jira)" <ji...@apache.org> on 2019/10/09 12:25:00 UTC

[jira] [Created] (YARN-9883) Reshape SchedulerHealth class

Adam Antal created YARN-9883:
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             Summary: Reshape SchedulerHealth class
                 Key: YARN-9883
                 URL: https://issues.apache.org/jira/browse/YARN-9883
             Project: Hadoop YARN
          Issue Type: Bug
          Components: resourcemanager, yarn
    Affects Versions: 3.3.0
            Reporter: Adam Antal


The {{SchedulerHealth}} class has some flaws, for example:
- It has no javadoc at all
- All its objects are package-private: they should be private
- The internal maps should be (Concurrent) EnumMaps instead of HashMaps: they are more efficient in storing Enums
- schedulerHealthDetails only stores the last operation, its name should reflect that (just like lastSchedulerRunDetails)



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