Initializing a new replica set

In this recipe, we will be setting up the first node of a three node replica set on a single server. In a production setup, this should be on three physically separate servers.

Getting ready

By now, I am assuming you are familiar with installing MongoDB and have it ready. Additionally, we will create individual directories for each MongoDB instance:

mkdir -p /data/server{1,2,3}/{conf,logs,db}

This should create three parent directories: /data/server1, /data/server2, and /data/server3, each containing subdirectories named conf, logs, and db. We will be using this directory format throughout the chapter.

...