Getting error while starting hdfs namenode -format

Question

I'm installing hadoop on remote server when starting

hdfs namenode -format

I am getting this error 

java.net.UnknownHostException: Web: Web: unknown error

.bashrc file:

export JAVA_HOME=/opt/jdk1.8.0_101
export JRE_HOME=/opt/jdk1.8.0_101/jre
export PATH=$PATH:/opt/jdk1.8.0_101/bin:/opt/jdk1.8.0_101/jre/bin
export HADOOP_HOME=/opt/hadoop
export HADOOP_INSTALL=$HADOOP_HOME
export HADOOP_MAPRED_HOME=$HADOOP_HOME
export HADOOP_COMMON_HOME=$HADOOP_HOME
export HADOOP_HDFS_HOME=$HADOOP_HOME
export YARN_HOME=$HADOOP_HOME
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export PATH=$PATH:$HADOOP_HOME/sbin:$HADOOP_HOME/bin

Comments

Can you share the property files?

Answer 1

Check your /etc/hosts file, the format should be like this:

127.0.0.1       localhost localhost
192.168.10.11   abc.com   abc
192.168.10.12   xyz.com   xyz

And check your machine hostname and use the right hostname in the properties file.