Datanode process not running in Hadoop

Question

I set up and configured a multi-node Hadoop cluster using this tutorial.

When I type in the start-all.sh command, it shows all the processes initializing properly as

Answer 1

Follow these steps and your datanode will start again.

1)Stop dfs. 2)Open hdfs-site.xml 3)Remove the data.dir and name.dir properties from hdfs-site.xml and -format namenode again.

4)Then start dfs again.