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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5251) Race between the initialization of NameNode and the http server
Date Tue, 24 Sep 2013 13:31:17 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13776299#comment-13776299
] 

Hudson commented on HDFS-5251:
------------------------------

SUCCESS: Integrated in Hadoop-Hdfs-trunk #1532 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1532/])
HDFS-5251. Race between the initialization of NameNode and the http server. Contributed by
Haohui Mai. (suresh: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1525787)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NamenodeJspHelper.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeJspHelper.java

                
> 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
>             Fix For: 2.2.0
>
>         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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