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Posted to yarn-dev@hadoop.apache.org by "Botong Huang (JIRA)" <ji...@apache.org> on 2017/06/22 18:19:00 UTC

[jira] [Created] (YARN-6730) Make sure NM state store is not null consistently

Botong Huang created YARN-6730:
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             Summary: Make sure NM state store is not null consistently
                 Key: YARN-6730
                 URL: https://issues.apache.org/jira/browse/YARN-6730
             Project: Hadoop YARN
          Issue Type: Task
            Reporter: Botong Huang
            Assignee: Botong Huang
            Priority: Minor


In the NM statestore for NM restart, there are a lot of places where we check if the stateStore != null. This is true in the existing codebase too. Ideally, the stateStore should never be null because we have the NullStateStore implementation and we should not have to perform so many defensive checks.



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