Conexión de mangosta a conjunto de réplicas

Usamos esto:

if(config.db.indexOf('replicaSet') > - 1) {
  dbOptions = {
    db: {native_parser: true},
    replset: {
      auto_reconnect:false,
      poolSize: 10,
      socketOptions: {
        keepAlive: 1000,
        connectTimeoutMS: 30000
      }
    },
    server: {
      poolSize: 5,
      socketOptions: {
        keepAlive: 1000,
        connectTimeoutMS: 30000
      }
    }
  };
}

var db = mongoose.connect(config.db, dbOptions);

donde

config.db =  'mongodb://USER:[email protected]:port1,host2:port2/DBNAME?replicaSet=RSNAME'

Auto_reconnect está desactivado según https://team.goodeggs.com/reconexión-a-mongodb-cuando-mongoose-connect-fails-at-startup-83ca8496ca02