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From "Haohui Mai (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5251) Race between the initialization of NameNode and the http server
Date Tue, 24 Sep 2013 01:18:03 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Haohui Mai updated HDFS-5251:
-----------------------------

    Attachment: HDFS-5251.000.patch
    
> Race between the initialization of NameNode and the http server
> ---------------------------------------------------------------
>
>                 Key: HDFS-5251
>                 URL: https://issues.apache.org/jira/browse/HDFS-5251
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Haohui Mai
>            Assignee: Haohui Mai
>         Attachments: HDFS-5251.000.patch
>
>
> The constructor of NameNode starts a HTTP server before the FSNameSystem is initialized.
Currently there is a race where the HTTP server can access the uninitialized namesystem variable,
throwing a NullPointerException.

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