Hi,

I am new to 2.2.0, after running the following command to start the first 
namenode, I used jps to check the cluster: 


./sbin/hadoop-daemon.sh --script hdfs start namenode
        starting namenode, logging to 
/usr/local/hadoop/yarn/hadoop//logs/hadoop-hduser-namenode-hd01.emblocsoft.net.out
jps
        3405 Jps
        3132 DataNode


The name of ID 3132 is DataNode, is this correct as I expected something like 
"3132 NameNode"? does it mean that the following two commands are doing the 
same thing in 2.2.0? 

                ./sbin/hadoop-daemon.sh --script hdfs start namenode
        ./sbin/hadoop-daemon.sh --script hdfs start datanode
        


regards

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