There are 0 datanode(s) running and no node(s) are excluded in this operation

Question

I have set up a multi node Hadoop Cluster. The NameNode and Secondary namenode runs on the same machine and the cluster has only one Datanode. All the nodes are configured o

Answer 1

Value for property {fs.default.name} in core-site.xml, on both the master and slave machine, must point to master machine. So it will be something like this:

     fs.default.name
     hdfs://master:9000

where master is the hostname in /etc/hosts file pointing to the master node.