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TP框架中定时器连接数据库查询出现报错Operation now in progress

### 问题描述

TP框架中定时器连接数据库查询出现报错PHP Fatal error:  Uncaught PDOException: SQLSTATE[HY000] [2002] Operation now in progress
尝试在定时器执行方法中进行数据库的查询操作,但是无法启动,启动就会报如下错误
![](/storage/article-column/XTlEpv6jS9okgcQLc7E1LVDlns2oqEDe6DYYMKt7.png)
### Swoole版本，PHP版本，以及操作系统版本信息
swoole版本 4.4.15
php版本 7.4
系统信息
LSB Version:	core-11.1.0ubuntu2-noarch:security-11.1.0ubuntu2-noarch
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04 LTS
Release:	20.04
Codename:	focal

### 相关代码
```php
请将代码粘贴至此处（请勿用截图）
```
以下为think-swoole配置文件swoole.php
`return [
    'server'     => [
        'host'      => env('SWOOLE_HOST', '127.0.0.1'), // 监听地址
        'port'      => env('SWOOLE_PORT', 1255), // 监听端口
        'mode'      => SWOOLE_PROCESS, // 运行模式 默认为SWOOLE_PROCESS
        'sock_type' => SWOOLE_SOCK_TCP, // sock type 默认为SWOOLE_SOCK_TCP
        'options'   => [
            'pid_file'              => runtime_path() . 'swoole.pid',
            'log_file'              => runtime_path() . 'swoole.log',
            'daemonize'             => false,
            // Normally this value should be 1~4 times larger according to your cpu cores.
            'reactor_num'           => swoole_cpu_num(),
            'worker_num'            => swoole_cpu_num(),
            'task_worker_num'       => swoole_cpu_num(),
            'enable_static_handler' => true,
            'document_root'         => root_path('public'),
            'package_max_length'    => 20 * 1024 * 1024,
            'buffer_output_size'    => 10 * 1024 * 1024,
            'socket_buffer_size'    => 128 * 1024 * 1024,
        ],
    ],
    'websocket'  => [
        'enable'        => false,
        'handler'       => Handler::class,
        'parser'        => Parser::class,
        'ping_interval' => 25000,
        'ping_timeout'  => 60000,
        'room'          => [
            'type'  => 'table',
            'table' => [
                'room_rows'   => 4096,
                'room_size'   => 2048,
                'client_rows' => 8192,
                'client_size' => 2048,
            ],
            'redis' => [
                'host'          => '127.0.0.1',
                'port'          => 6379,
                'max_active'    => 3,
                'max_wait_time' => 5,
            ],
        ],
        'listen'        => [],
        'subscribe'     => [],
    ],
    'rpc'        => [
        'server' => [
            'enable'   => false,
            'port'     => 9000,
            'services' => [
            ],
        ],
        'client' => [
        ],
    ],
    'hot_update' => [
        'enable'  => env('APP_DEBUG', false),
        'name'    => ['*.php'],
        'include' => [app_path()],
        'exclude' => [],
    ],
    //连接池
    'pool'       => [
        'db'    => [
            'enable'        => true,
            'max_active'    => 3,
            'max_wait_time' => 5,
        ],
        'cache' => [
            'enable'        => true,
            'max_active'    => 3,
            'max_wait_time' => 5,
        ],
        //自定义连接池
    ],
    'coroutine'  => [
        'enable' => true,
        'flags'  => SWOOLE_HOOK_ALL,
    ],
    'tables'     => [],
    //每个worker里需要预加载以共用的实例
    'concretes'  => [],
    //重置器
    'resetters'  => [],
    //每次请求前需要清空的实例
    'instances'  => [],
    //每次请求前需要重新执行的服务
    'services'   => [],
];`

配置文件swoole.php除了端口号均为默认配置,经测试在fpm下(也就是没有走swoole定时器)的时候是数据库连接是正常的,数据库配置信息应该不会出错,请问是何种原因导致的呢?是不支持在定时器里面操作数据了么还是其他原因呢?

发布于4年前 · 12 次浏览 · 来自提问