app.configure(function configureMongoDbConnection() {
    var connectionString = 'mongodb://localhost:27017/test',
        sleep = 1000,
        timer;

    db.on('connecting', function() {
        console.log('connecting to MongoDB...');
    });

    db.on('error', function(error) {
        console.error('Error in MongoDb connection: ' + error);
        mongoose.disconnect();
    });

    db.on('connected', function() {
        console.log('MongoDB connected!');
    });

    db.once('open', function() {
        clearTimeout(timer);
        connect.time = 0;
        console.log('MongoDB connection opened!');
    });

    db.on('reconnected', function () {
        console.log('MongoDB reconnected!');
    });

    db.on('disconnected', function() {
        console.log('MongoDB disconnected!');
        connect.time += sleep;
        timer = setTimeout(connect, sleep);
    });

    function connect() {
        if(connect.time > 22000) {
            console.error('giving up on db connection');
            return;
        }
        mongoose.connect(connectionString, {server:{auto_reconnect:true}});
    }

    connect.time = 0;
    connect();
});