Kafka集群健康检查PHP脚本编写

<?php

// Kafka集群健康检查脚本

$brokers = [
    'broker1' => 'localhost:9092',
    'broker2' => 'localhost:9093',
    'broker3' => 'localhost:9094'
];

foreach ($brokers as $brokerId => $brokerAddress) {
    $ch = curl_init($brokerAddress . '/healthcheck');
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);

    if ($response === false) {
        echo "Broker $brokerId is down\n";
    } else {
        echo "Broker $brokerId is up\n";
    }
}

?>

这个PHP脚本会循环检查指定的Kafka broker是否健康，通过向每个broker的/healthcheck端点发送HTTP请求来检查。如果某个broker无法响应请求，脚本会输出"Broker [brokerId] is down"；如果broker正常响应请求，脚本会输出"Broker [brokerId] is up"。可以根据实际情况修改$brokers数组中的broker信息。