webman2+swoole协程curl请求有时候会报错

问题描述

部署了一个服务，大致流程是客户端请求服务端，服务端用swoole协程同时curl请求多个三方API，经过一些业务处理返回数据给客户端（优先返回“请求速度更快、并且在业务上处于更高优先级的api”的响应结果）
在workerman.log和stdout.log会出现标题所示的错误

程序代码

public static function getInfo(string $request_data)
    {
        $thirds = Third::cases();
        $count = count($thirds);
        $channel = new Channel($count);
        foreach ($thirds as $third) {
            Coroutine::create(function () use ($channel, $third, $request_data) {
                $class_name = $third->className();
                $option = call_user_func([$class_name, Third::FUNC_GET_OPTION], $request_data);
                try {
                    $response = Curl::post($option['url'], $option['data'], $option['header'], 3000);
                } catch (Throwable $exception) {
                    $response = '';
                }
                $result = call_user_func([$class_name, Third::FUNC_GET_RESULT], $response);
                $channel->push([
                    'third' => $third,
                    'result' => $result,
                ]);
            });
        }
        return self::orderThirdResult($count, $channel);
    }

    private static function orderThirdResult(int $count, Channel $channel)
    {
        $list = [];
        $order_scheme = self::ORDER_SCHEME;
        for ($i = 0; $i < $count; $i++) {
            $item = $channel->pop();
            $list[$item['third']->value] = $item;
            foreach ($order_scheme as $thirds) {
                $is_this_order_finish = true;
                foreach ($thirds as $third) {
                    if (!isset($list[$third->value])) {
                        $is_this_order_finish = false;
                    } else if ($list[$third->value]['result']) {
                        return $list[$third->value];
                    }
                }
                if (!$is_this_order_finish) {
                    break;
                }
            }
        }
        return ['third' => null, 'result' => ''];
    }

报错信息

2025-12-15 17:04:25 pid:3086 Worker[3086] process terminated with ERROR: E_ERROR "Uncaught RuntimeException: Failed to get a connection from the pool within the wait timeout (3 seconds). The connection pool is exhausted. in /www/wwwroot/privacy/vendor/workerman/coroutine/src/Pool.php:193
2025-12-15 17:04:25 pid:28912 worker[coroutine:3086] exit with status 6
2025-12-15 17:04:29 pid:3021 Worker[3021] process terminated with ERROR: E_ERROR "Uncaught RuntimeException: Failed to get a connection from the pool within the wait timeout (3 seconds). The connection pool is exhausted. in /www/wwwroot/privacy/vendor/workerman/coroutine/src/Pool.php:193
2025-12-15 17:04:29 pid:28912 worker[coroutine:3021] exit with status 6
2025-12-15 17:04:49 pid:3119 Worker[3119] process terminated with ERROR: E_ERROR "Uncaught RuntimeException: Failed to get a connection from the pool within the wait timeout (3 seconds). The connection pool is exhausted. in /www/wwwroot/privacy/vendor/workerman/coroutine/src/Pool.php:193
2025-12-15 17:04:49 pid:28912 worker[coroutine:3119] exit with status 11
2025-12-15 17:05:00 pid:3131 Worker[3131] process terminated with ERROR: E_ERROR "Uncaught RuntimeException: Failed to get a connection from the pool within the wait timeout (3 seconds). The connection pool is exhausted. in /www/wwwroot/privacy/vendor/workerman/coroutine/src/Pool.php:193
2025-12-15 17:05:00 pid:28912 worker[coroutine:3131] exit with status 6

[2025-12-15 17:04:25 @28891.0]  WARNING Channel::~Channel() (ERRNO 10003): channel is destroyed, 20 consumers will be discarded
[2025-12-15 17:04:25 @28891.0]  WARNING Channel::~Channel() (ERRNO 10003): channel is destroyed, 1 consumers will be discarded
[2025-12-15 17:04:25 @28891.0]  WARNING Channel::~Channel() (ERRNO 10003): channel is destroyed, 1 consumers will be discarded
[2025-12-15 17:04:29 @28891.0]  WARNING Channel::~Channel() (ERRNO 10003): channel is destroyed, 15 consumers will be discarded
[2025-12-15 17:04:29 @28891.0]  WARNING Channel::~Channel() (ERRNO 10003): channel is destroyed, 1 consumers will be discarded
[2025-12-15 17:04:29 @28891.0]  WARNING Channel::~Channel() (ERRNO 10003): channel is destroyed, 1 consumers will be discarded
[2025-12-15 17:04:29 @28891.0]  WARNING Channel::~Channel() (ERRNO 10003): channel is destroyed, 1 consumers will be discarded
[2025-12-15 17:04:29 @28891.0]  WARNING Channel::~Channel() (ERRNO 10003): channel is destroyed, 1 consumers will be discarded
[2025-12-15 17:04:49 @28891.0]  WARNING Channel::~Channel() (ERRNO 10003): channel is destroyed, 20 consumers will be discarded
[2025-12-15 17:05:00 @28891.0]  WARNING Channel::~Channel() (ERRNO 10003): channel is destroyed, 10 consumers will be discarded

截图报错信息里报错文件相关代码

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