Swoole and Workerman's optimization methods for data high availability and data replication in PHP and MySQL

Swoole and Workerman are two high-performance network programming frameworks for PHP. They provide more reliable network transmission solutions and enable more optimization methods in data high availability and data replication.

1. Implementation of high availability

1. Database connection pool

When using PHP to operate the MySQL database, each database operation needs to establish and Close the connection to the database, which is less efficient. The use of connection pool technology can reuse the creation and destruction of connections and improve database access performance.

The following is a sample code for using Swoole to implement a database connection pool:

$pool = new SwooleConnectionPool();
$pool->setConfig([
    'min' => 5,
    'max' => 10,
    'host' => 'localhost',
    'user' => 'root',
    'password' => '123456',
    'database' => 'test',
]);
$pool->init();

// 获取连接
$pool->getConnection(function ($db) {
    $db->query("SELECT * FROM user");
    // 业务逻辑处理
    // ...

    // 释放连接
    $pool->put($db);
});

2. Temporary storage

In high concurrency situations, in order to ensure data consistency For performance and availability, multiple requests may be written to the database at the same time. To solve this problem, temporary storage technology can be used.

The following is a sample code for implementing temporary storage using the Table class provided by Swoole:

$table = new SwooleTable(1024);
$table->column('id', SwooleTable::TYPE_INT);
$table->column('data', SwooleTable::TYPE_STRING, 1024);
$table->create();

$table->set('key1', ['id' => 1, 'data' => 'value1']);
$table->set('key2', ['id' => 2, 'data' => 'value2']);

$data = $table->get('key1');

2. Implementation of data replication

1. Master-slave replication

Master-slave replication is a commonly used database replication scheme, which improves data reliability and concurrent reading capabilities by synchronizing data from the master database to multiple slave databases.

The following is a sample code for using Workerman to implement master-slave replication:

require_once 'workerman/Autoloader.php';

use WorkermanWorker;

$worker = new Worker();
$worker->count = 4;

$worker->onWorkerStart = function ($worker) {
    $pdo = new PDO("mysql:host=127.0.0.1;port=3306;dbname=test", 'root', 'password');

    $worker->pdo = $pdo;
};

$worker->onMessage = function ($connection, $data) {
    $pdo = $connection->worker->pdo;
    $result = $pdo->query("SELECT * FROM user");

    // 返回查询结果
    $connection->send(json_encode($result->fetchAll(PDO::FETCH_ASSOC)));
};

Worker::runAll();

2. Data synchronization

Data synchronization refers to the transfer of data between multiple databases. Data remains consistent to ensure data reliability and consistency. Data synchronization can be achieved using the asynchronous task queue provided by Swoole.

The following is a sample code for using Swoole's asynchronous task queue to achieve data synchronization:

$server = new SwooleServer('127.0.0.1', 9501);

$server->on('receive', function ($server, $fd, $from_id, $data) {
    // 接收到数据，将数据写入到数据库
    $pdo = new PDO("mysql:host=127.0.0.1;port=3306;dbname=test", 'root', 'password');
    $pdo->query("INSERT INTO user (data) VALUES ('$data')");

    // 将任务放入异步任务队列
    $server->task($data);
});

$server->on('task', function ($server, $task_id, $from_id, $data) {
    // 执行异步任务，将数据传输到其他数据库
    $pdo = new PDO("mysql:host=127.0.0.1;port=3306;dbname=test", 'root', 'password');
    $pdo->query("INSERT INTO user (data) VALUES ('$data')");
});

$server->start();

In summary, Swoole and Workerman provide a wealth of functions and optimization methods, making PHP and MySQL There are better solutions for data high availability and data replication. Developers can use appropriate methods to optimize database operations and improve system reliability and performance according to their own needs.

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