# File lib/mongo/db.rb, line 119 def authenticate(username, password, save_auth=true) if @connection.pool_size > 1 if !save_auth raise MongoArgumentError, "If using connection pooling, :save_auth must be set to true." end end begin socket = @connection.checkout_reader(:primary_preferred) issue_authentication(username, password, save_auth, :socket => socket) ensure socket.pool.checkin(socket) if socket end @connection.authenticate_pools end