[hadoop@master ~]$ start-dfs.sh Incorrect configuration: namenode address dfs.namenode.servicerpc-address or dfs.namenode.rpc-address is not configured. Starting namenodes on [] Error: Cannot find configuration directory: /etc/hadoop Error: Cannot find configuration directory: /etc/hadoop Starting secondary namenodes [0.0.0.0] Error: Cannot find configuration directory: /etc/hadoop
[hadoop@master ~]$ vi /opt/software/hadoop-2.7.7/etc/hadoop/hadoop-env.sh
export HADOOP_CONF_DIR=/opt/software/hadoop-2.7.7/etc/hadoop
[hadoop@master ~]$ source /opt/software/hadoop-2.7.7/etc/hadoop/hadoop-env.sh