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From "Aaron T. Myers (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-2913) HA: Need a way to shutdown the Name Node
Date Wed, 08 Feb 2012 00:23:03 GMT

     [ https://issues.apache.org/jira/browse/HDFS-2913?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron T. Myers updated HDFS-2913:
---------------------------------

    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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