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Date: Wed, 8 Feb 2012 00:23:03 +0000 (UTC)
From: "Aaron T. Myers (Updated) (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HDFS-2913) HA: Need a way to shutdown the Name
 Node
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     [ 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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