// https://github.com/felixge/node-mysql/

var query = "select sleep(1), id from blog_post limit 1;"

var mysql      = require('mysql');

var pool  = mysql.createPool({
  connectionLimit : 100,
  host     : 'localhost',
  user     : 'root',
  password : '123',
  database : 'kodoman',
});

for (var i=0; i<100; ++i) {
    pool.query(query, function(err, rows, fields) {
      if (err) throw err;

      console.log(rows);
    });
}

setTimeout(function () {
pool.end(function (err) {
  // all connections in the pool have ended
});
}, 2100)