[jira] [Created] (HDDS-212) Introduce NodeStateManager to manage the state of Datanodes in SCM

["Nanda kumar (JIRA)" <ji...@apache.org>]

Nanda kumar created HDDS-212:
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             Summary: Introduce NodeStateManager to manage the state of Datanodes in SCM
                 Key: HDDS-212
                 URL: https://issues.apache.org/jira/browse/HDDS-212
             Project: Hadoop Distributed Data Store
          Issue Type: Improvement
          Components: SCM
            Reporter: Nanda kumar
            Assignee: Nanda kumar
             Fix For: 0.2.1


Introducing {{NodeStateManager}} will make the lifecycle management of datanodes in SCM easy. NodeStateManager will be responsible for marking the datanodes as stale or dead when heartbeat is not received and it will maintain the current state of all the datanodes in the cluster. NodeStateManager should be the only place we maintain node state information, everyone else should use NodeStateManager to know about the state information.



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