Multiple node-mongodb-native connections

Question

When I run this Node.js code:

var mongodb = require(\'mongodb\'),
  MongoClient = mongodb.MongoClient;
MongoClient.connect(\'mongodb://localhost:27017/mydb\', fu         


        

Answer 1

Sure. MongoClient uses the connection pools option from the node native driver. This is actually really a Server Object and the number of connections is 5 by default.

You can override the setting like this:

var async = require('async'),
    mongo = require('mongo'),
    MongoClient = mongo.MongoClient;


MongoClient.connect('mongodb://localhost/test',{ server: { poolSize: 1  }},function(err,db) {


});

So setting "poolSize" in the server options specifies the number of connections used in the pool. Best to stick with the default or higher really though.