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https://issues.apache.org/jira/browse/HDFS-2948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13209327#comment-13209327
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Hudson commented on HDFS-2948:
------------------------------
Integrated in Hadoop-Hdfs-HAbranch-build #79 (See
[https://builds.apache.org/job/Hadoop-Hdfs-HAbranch-build/79/])
Amend HDFS-2948. NN throws NPE during shutdown if it fails to startup
Previous patch missed the case where the NN fails to start up when it's
starting in standby state. (Revision 1244813)
Result = FAILURE
todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1244813
Files :
*
/hadoop/common/branches/HDFS-1623/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java
> HA: NN throws NPE during shutdown if it fails to startup
> --------------------------------------------------------
>
> Key: HDFS-2948
> URL: https://issues.apache.org/jira/browse/HDFS-2948
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, name-node
> Affects Versions: HA branch (HDFS-1623)
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
> Fix For: HA branch (HDFS-1623)
>
> Attachments: hdfs-2948.txt
>
>
> Last night's nightly build had a bunch of NPEs thrown in NameNode.stop. Not
> sure which patch introduced the issue, but the problem is that
> NameNode.stop() is called if an exception is thrown during startup. If the
> exception is thrown before the namesystem is created, then
> NameNode.namesystem is null, and {{namesystem.stop}} throws NPE.
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