namenode, datanode not list by using jps

Question

Environment: ubuntu 14.04, hadoop 2.6

After I type the start-all.sh and jps, DataNode doesn\'t list on the terminal

Answer 1

I faced the similar problem, jps was not showing datanode.

Removing the content of hdfs folder and changing folder permission worked out for me.

sudo rm -r /usr/local/hadoop_store/hdfs/*
sudo chmod -R 755 /usr/local/hadoop_store/hdfs    
hadoop namenode =format
start-all.sh
jps