mongodb replicate set

gistfile1.txt

# mongod --port 27017 --dbpath /var/lib/mongo --replSet rs0
# sudo service mongod start
# nano /etc/mongod.conf

mongod --port 27017 --dbpath /data/db/rs0 --replSet rs0 
mongod --port 27018 --dbpath /data/db/rs1 --replSet rs0 
mongod --port 27019 --dbpath /data/db/rs2 --replSet rs0 

rsconf = {
  _id: "rs0",
    members: [
    {
      _id: 0,
      host: "127.0.0.1:27017"
    },
    {
      _id: 1,
      host: "127.0.0.1:27018"
    },
    {
      _id: 2,
      host: "127.0.0.1:27019"
    }
  ]
}
rs.initiate(rsconf)