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https://issues.apache.org/jira/browse/HDFS-2913?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron T. Myers updated HDFS-2913:
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    Component/s: ha
    
> HA: Need a way to shutdown the Name Node
> ----------------------------------------
>
>                 Key: HDFS-2913
>                 URL: https://issues.apache.org/jira/browse/HDFS-2913
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, name-node
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Bikas Saha
>            Assignee: Bikas Saha
>
> Ideally, NameNode.stop() needs to be called because it will change the HA 
> state and shutdown all services. NameNode reference is not available 
> anywhere. Hence it is not possible to shutdown the name node gracefully.
> A possible solution could be to have a Service interface that gets passed 
> down to components like FSNameSystem, via which they can inform the NameNode 
> about irrecoverable errors. NameNode could then decide to shutdown.

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