when visit http://mongodb.github.io/node-mongodb-native/api-generated/mongoclient.html, I find a line of code below:
var mongoclient = new MongoClient(new Server("localhost", 27017,

));
But I can't find the native_parser at http://mongodb.github.io/node-mongodb-native/api-generated/server.html?highlight=server#Server
Then I google it, at https://groups.google.com/forum/#!topic/node-mongodb-native/p6QwXNn2X7M, it says that the native_parser should not set on Server option.