http://www.reddit.com/r/node/comments/1gqhvi/performancenode_js_spirals_out_of_control/

gistfile1.js

var mysql   = require('mysql');
var Gearman = require('gearman-node')
var once    = require('once');

var pool = mysql.createPool({
  host            : 'localhost',
  user            : 'ingress',
  password        : 'ingress12345',
  database        : 'ingress_data',
  connectionLimit : 5,
  queueLimit      : 1000
});

var gearman = new Gearman(hostname, port);

gearman.registerWorker("parse", function(payload, worker){
    console.log("GearnodeWorking");
    
    // Ensure we only report failures to gearman once
    var failWorker = once(worker.error.bind(worker)); 
    var fail = function (err) {
      failWorker();
      console.log(JSON.stringify(err));
    }
    
    pool.getConnection(function (err, connection) {
      if (err) { return fail(err); }
      
      connection.on('error', fail);
      
      connection.query('/*txnstart*/START TRANSACTION');
      
      var obj;
          
      try {
          obj = JSON.parse(payload);
      } catch(err) {
        return fail(new Error("Parse error: " + payload));
      }
          
      if (obj != null) parse(obj);

      connection.query('/*txnstop*/COMMIT', function (err) {
        if (err) return fail(err);
        console.log("GearnodeDone");
        job.complete(payload);
      });
  });
});

gearman.connect();