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突然出现大量的operation now in progress

### 问题描述
代码用着用着出现大量的operation now in progress
exception 'think\exception\ErrorException' with message 'swoole_client::connect(): connect to server[127.0.0.1:9505] failed. Error: Operation now in progress[115].' in /data/www/api/application/common/controller/SwooleClient.php:54
### Swoole版本，PHP版本，以及操作系统版本信息
swoole版本：1.10.4
PHP:5.6.40 
Linux version 2.6.32-754.35.1.el6.x86_64

### 相关代码
```php
<?php
/**
 * Created by PhpStorm.
 * User: lenovo
 * Date: 2018/4/13
 * Time: 9:34
 */
namespace app\common\controller;

use think\Exception;

class SwooleClient
{
    public $cli = null;

private $is_long = false;

private $connected = true;

private $config = [
        'host'      =>  '127.0.0.1',
        'port'      =>  9502,
        'sock_type' =>  1,    //sock类型，tcp
        'sock_sync' =>  0 //同步客户端
    ];

private $cliconfig = [
        'socket_buffer_size'     => 3145728,

'open_length_check'     => 1,
        'package_length_type'   => 'N',
        'package_length_offset' => 0,       //第N个字节是包长度的值
        'package_body_offset'   => 4,       //第几个字节开始计算长度
        'package_max_length'    => 2000000,  //协议最大长度
    ];

public function __construct($config = [], $is_long = false)
    {
        $this->config = array_merge($this->config, $config);
        $this->is_long = $is_long;
        $sock_type = $this->is_long ? SWOOLE_SOCK_TCP | SWOOLE_KEEP : $this->config['sock_type'];

$this->cli = new \swoole_client($sock_type, $this->config['sock_sync']);

$this->cli->set($this->cliconfig);

if (!empty($this->config['host']) && !empty($this->config['port'])) {
            $this->connect($this->config['host'], $this->config['port']);
        }
    }

public function connect($host = '127.0.0.1', $port = 9502)
    {
        if ($this->cli->connect($host, $port, 3) === false) {
            _set_log('swoole::client connect fail'.$this->cli->errCode, 'error');
            $this->close();
            $re = $this->cli->connect($host, $port, 3);
            if ($re === false) {
                $this->connected = false;
            }
        }
    }

public function send($data, $package = false)
    {
        $data = is_array($data) || is_object($data) ? json_encode($data) : $data;
        if ($package === true) {
            $pack = pack('N', strlen($data));
            $data = $pack. $data;
        }
        try {
            return $this->cli->send($data);
        } catch (Exception $e) {
            $this->close();
            $this->connect($this->config['host'], $this->config['port']);
            $re = $this->cli->send($data);
        }
        return $re;
    }

public function recv()
    {
        $data = $this->cli->recv();
        if (isset($this->cliconfig['open_length_check'])) {
            $len = unpack('N', $data)[1];
            $data = mb_substr($data, -$len);
        }
        return $data;
    }

public function close()
    {
        $this->cli->close($this->is_long);
    }

private function __clone()
    {
        // TODO: Implement __clone() method.
    }

}
```

### 你期待的结果是什么？实际看到的错误信息又是什么？
期待的结果：为啥会突然出现这种报错，以后怎么规避。

发布于4年前 · 12 次浏览 · 来自提问

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