Hi,

there is a procedure to follow in order to setup an RS using keyfile here

I'd like to suggest a modification in the chapter 5 for the command rs.initiate()

rs.initiate(
  {
    _id : <replicaSetName>,
    members: [
      { _id : 0, host : "mongo1.example.net:27017" },
      { _id : 1, host : "mongo2.example.net:27017" },
      { _id : 2, host : "mongo3.example.net:27017" }
    ]
  }
)

The value associated with _id field is confusing ('<replicaSetName>').
We cant guess whether its an integer (since the field is called '_id' and the associated value doesn't have quotes) or string type (since the value says 'replicaSetName')

In my opinion, it would be more clear if we have:

rs.initiate(
 {
   _id : "<replicaSetName>",

or:

rs.initiate(
 {
   _id : "myReplSet",

(such as this similar example in the documentation or also here, chapter 3)

Regards,

Pierre