Question

I have a mongodb replicaset on ubuntu.. In replica set, hosts are defined as localhost. You can see ;

{
    "_id" : "myrep",
    "version" : 4,
    "members" : [
            {
                    "_id" : 0,
                    "host" : "localhost:27017"
            },
            {
                    "_id" : 2,
                    "host" : "localhost:27018"
            },
            {
                    "_id" : 1,
                    "host" : "localhost:27019",
                    "priority" : 0
            }
    ]

}

I want to change host adresses with real ip of server. But when i run rs.reconfig, I get error :

{
    "assertion" : "hosts cannot switch between localhost and hostname",
    "assertionCode" : 13645,
    "errmsg" : "db assertion failure",
    "ok" : 0

}

How can i solve it ?
Thank you.

Answer 1

The only way I found to change host names is recreating replica set.. To make it right db directories need to be cleaned.. Then starting all servers with replication mode after that creating new repset with new host names fixed it.