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Posted to common-dev@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2014/07/30 21:58:39 UTC

[jira] [Resolved] (HADOOP-6806) While running HADOOP "Exception in thread "main" java.lang.NullPointerException " occurs

     [ https://issues.apache.org/jira/browse/HADOOP-6806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Allen Wittenauer resolved HADOOP-6806.
--------------------------------------

    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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