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Posted to hdfs-issues@hadoop.apache.org by "Chris Nauroth (JIRA)" <ji...@apache.org> on 2015/05/04 20:40:08 UTC

[jira] [Updated] (HDFS-8290) WebHDFS calls before namesystem initialization can cause NullPointerException.

     [ https://issues.apache.org/jira/browse/HDFS-8290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Nauroth updated HDFS-8290:
--------------------------------
       Resolution: Fixed
    Fix Version/s: 2.8.0
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

I committed this to trunk and branch-2.  Jakob, thank you for the code review.

> WebHDFS calls before namesystem initialization can cause NullPointerException.
> ------------------------------------------------------------------------------
>
>                 Key: HDFS-8290
>                 URL: https://issues.apache.org/jira/browse/HDFS-8290
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: webhdfs
>    Affects Versions: 2.6.0
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>            Priority: Minor
>             Fix For: 2.8.0
>
>         Attachments: HDFS-8290.001.patch
>
>
> The NameNode has a brief window of time when the HTTP server has been initialized, but the namesystem has not been initialized.  During this window, a WebHDFS call can cause a {{NullPointerException}}.  We can catch this condition and return a more meaningful error.



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