Issues in the installation guide(cluster)

[kyhhdm]

Step2.8 Edit mapred-site.xml in $HADOOP_HOME/etc/hadoop by using the following code.
Value of mapreduce.map.collective.java.opts, 256MB here, is too small to run the examples. For example, running mlrsgd fails under this setting.

Step3.1 Format the other data nodes. Replace ${data node} by the IP address.
This should be better to be a troubleshooting solution other than a normal step to run kmeans.