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Posted to common-dev@hadoop.apache.org by "GIRISH N IYER (JIRA)" <ji...@apache.org> on 2010/06/03 13:27:07 UTC
[jira] Created: (HADOOP-6806) While running HADOOP "Exception in
thread "main" java.lang.NullPointerException " occurs
While running HADOOP "Exception in thread "main" java.lang.NullPointerException " occurs
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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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