


How Does Connection Pooling with Node.js and MySQL Boost Your Application's Performance?
Nov 05, 2024 am 09:10 AMConnection Pooling with Node.js and MySQL
Optimizing your application's use of MySQL can enhance performance and efficiency. This article explores connection pooling techniques using the node-mysql module.
Connection Pooling
Connection pooling eliminates the need to establish individual connections to the database for each query. Instead, a pool of reusable connections is maintained, improving query execution speed and reducing resource consumption.
Implementing Connection Pooling
To implement connection pooling, create a pool object using the createPool() function of the mysql module:
var mysql = require('mysql'); var pool = mysql.createPool({ host: 'localhost', user: 'root', password: 'root', database: 'guess' });
Store the pool object in a separate module (e.g., mysql.js) for reuse.
Querying the Database
To execute queries using the connection pool, require the mysql.js module and obtain a connection:
var mysql = require('../db/mysql').pool; var test = function (req, res) { mysql.getConnection(function (err, conn) { conn.query("select * from users", function (err, rows) { res.json(rows); }); }); };
Best Practices
- Pool Size: Determine an optimal pool size based on your application's expected load.
- Connection Handling: Release connections back to the pool using the release() method.
- Connection End: Close connections manually if they are no longer needed, even if released back to the pool.
Returning a Connection from the Pool
To simplify connection retrieval, modify the mysql module to return a function that retrieves a connection:
var getConnection = function (callback) { pool.getConnection(function (err, connection) { callback(err, connection); }); }; module.exports = getConnection;
This allows you to obtain connections directly:
var getConnection = require('../db/mysql'); getConnection(function (err, connection) { // Use the connection... });
The above is the detailed content of How Does Connection Pooling with Node.js and MySQL Boost Your Application's Performance?. For more information, please follow other related articles on the PHP Chinese website!

Hot Article

Hot tools Tags

Hot Article

Hot Article Tags

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Reduce the use of MySQL memory in Docker

How do you alter a table in MySQL using the ALTER TABLE statement?

How to solve the problem of mysql cannot open shared library

What is SQLite? Comprehensive overview

Run MySQl in Linux (with/without podman container with phpmyadmin)

Running multiple MySQL versions on MacOS: A step-by-step guide

How do I secure MySQL against common vulnerabilities (SQL injection, brute-force attacks)?

How do I configure SSL/TLS encryption for MySQL connections?
