While i am trying to configure hadoop single node cluster,i have actually given the namenode and datanode directory as **/home/hduser/data/namenode,/home/hduser/datanode,** but while i am trying to format namenode and trying to start the cluster for the first time,namenode storage directory is pointing to **/tmp directory** only not my actual storage path /home/hduser/data/namenode, i have not configured any '/tmp' directory also,can anyone help me to resolve this?