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https://issues.apache.org/jira/browse/AMBARI-13462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14962521#comment-14962521
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Theodore Omtzigt commented on AMBARI-13462:
-------------------------------------------

The command
export HADOOP_LIBEXEC_DIR=/usr/hdp/current/hadoop-client/libexec
/var/lib/ambari-agent/ambari-sudo.sh su hdfs -l -s /bin/bash -c 'ulimit -c 
unlimited ;  /usr/hdp/current/hadoop-client/sbin/hadoop-daemon.sh --config 
/usr/hdp/current/hadoop-client/conf start namenode'

yielded the same error, but a second invocation trips over the port still being 
in use. 

> NameNode fails to start due to unexpected version of storage directory
> ----------------------------------------------------------------------
>
>                 Key: AMBARI-13462
>                 URL: https://issues.apache.org/jira/browse/AMBARI-13462
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.1.2
>         Environment: Ubuntu 14.04 LTS fresh install
>            Reporter: Theodore Omtzigt
>
> NameNode service does not start on fresh install through Wizard.
> 2015-10-18 10:18:54,427 FATAL namenode.NameNode (NameNode.java:main(1509)) - 
> Failed to start namenode.
> org.apache.hadoop.hdfs.server.common.IncorrectVersionException: Unexpected 
> version of storage directory /hadoop/hdfs/namenode. Reported: -63. Expecting 
> = -60.
> Removing the content of /hadoop/hdfs/namenode, and restarting the NameNode 
> through the Ambari server, yields a repeatable process to trigger this bug.



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