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From "Todd Lipcon (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-2948) HA: NN throws NPE during shutdown if it fails to startup
Date Tue, 14 Feb 2012 17:57:59 GMT
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
            Priority: Minor

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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