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https://issues.apache.org/jira/browse/HADOOP-6806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Allen Wittenauer resolved HADOOP-6806.
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Resolution: Cannot Reproduce
> While running HADOOP "Exception in thread "main"
> java.lang.NullPointerException " occurs
> ----------------------------------------------------------------------------------------
>
> Key: HADOOP-6806
> URL: https://issues.apache.org/jira/browse/HADOOP-6806
> Project: Hadoop Common
> Issue Type: Task
> Environment: CentOS 5.0
> Reporter: GIRISH N IYER
>
> hi,
> while installin hadoop ... i can do the following step
> "bin/hadoop namenode -format"...it got success
> After when i do
> "bin/start-all.sh"....the following error occurs........
> starting namenode, logging to
> /hadoop/hadoop/bin/../logs/hadoop-hadoop-namenode-localhost.localdomain.out
> localhost: ssh: localhost: Name or service not known
> hadoop@master's password:
> master: starting secondarynamenode, logging to
> /hadoop/hadoop/bin/../logs/hadoop-hadoop-secondarynamenode-localhost.localdomain.out
> master: Exception in thread "main" java.lang.NullPointerException
> master: at
> org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:134)
> master: at
> org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:156)
> master: at
> org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:160)
> master: at
> org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.initialize(SecondaryNameNode.java:131)
> master: at
> org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.<init>(SecondaryNameNode.java:115)
> master: at
> org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.main(SecondaryNameNode.java:469)
> starting jobtracker, logging to
> /hadoop/hadoop/bin/../logs/hadoop-hadoop-jobtracker-localhost.localdomain.out
> localhost: ssh: localhost: Name or service not known
> Pls help me to solve this........
> Also i did not configure
> "nano conf/core-site.xml"
> "nano conf/hdfs-site.xml"
> "nano conf/mapred-site.xml"
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