I was going through the steps for this in Hadoop FAQ.pdf.
1. It has instructions only to decommission (on Google drive) - where are instructions for commissioning?
2. For decommission, I find this:
"Create a file named dfs.exclude and add the hostnames of machines that need to be decommissioned line by line.
What node name will I decommission, given I have only a pseudo hadoop setup with one node? Any one else in the class who has done this - please clarify.