javascript - NodeJS 的连接池

Question

我有一个应用程序已将与 MongoDB 的连接数量最大化，我假设如果驱动程序设置正确，您无需担心关闭连接。

我见过有人提到通用池模块，但使用 Node 和 MongoDB 关闭或合并连接的最佳过程是什么？

这是我的应用程序连接代码:

var sys = require("sys");
var app = require('http').createServer(handler);
var io = require('socket.io').listen(app);

app.listen(1337);

io.configure(function () {
io.set('authorization', function (handshakeData, callback) {
    callback(null, true);
    });
});

function handler (req, res, data) {
    sys.puts('request made to trackerapp.js'); 
    res.writeHead(200);
    res.end(data);
}

io.sockets.on('connection', function (socket) {
  socket.on('adTracker', function (data) {
  var adRequestData = data;
  var databaseUrl = "mongodb://dbuser:dbpass@mongolab.com/tracker";
  var collections = ["cmnads"]
  var db = require("mongojs").connect(databaseUrl, collections);

    db.cmnads.insert({adRequest : adRequestData},function(err, updated) {
        if( err || !updated ) console.log("mongo not updated" + err);
        else console.log("data stored");
      });
    });
});

Answer 1

在看到 JohnnyHK 的评论后，我能够从 Socket.io 连接中拉出连接事件并且它工作正常，请参见下面的解决方案:

var databaseUrl = "mongodb://dbuser:dbpass@mongolab.com/tracker";
var collections = ["cmnads"];
var db = mongojs.connect(databaseUrl, collections);

io.sockets.on('connection', function (socket) {
  socket.on('adTracker', function (data) {
  var adRequestData = data;

  //vars for MongoDB used to be created here... so new connect function was called on every request to socket.io

  db.cmnads.insert({adRequest : adRequestData},function(err, updated) {
      if( err || !updated ) console.log("mongo not updated" + err);
        else console.log("data stored");
      });
    });
});