PHP exec()在使用nohup时导致连接超时

Question

我有一个类使用PHP中的exec()函数执行python脚本。它给了我一个超时，即使我使用nohup在后台运行。

服务器运行在4GB内存上，是一个带有centOS 8的LXC容器，Web是nginx。

有什么想法吗？

<?php

class Deployment {

  private $clusterName;
  private $vendor;
  private $nodeIP;
  private $password;
  private $cmd;

  public function task($clusterName, $vendor, $nodeIP, $password) {

    $this->cmd = escapeshellcmd('python3 /usr/share/nginx/python/script.py --ip '.$nodeIP.' --password '.$password);

    // Execute Job here
    exec($this->cmd);
  }

  // Method used to execute the python engine
  private function exec($cmd = null){
     if(!$cmd){
         throw new Exception("No command given");
         die('No command given');
     }
     shell_exec("/usr/bin/nohup ".$cmd." > /dev/null 2>&1 &");
  }
}

我正在犯的错误：

2020/11/25 01:00:26 [error] 109#0: *5 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 192.168.10.225, server: _, request: "POST /dev/html/deploy.php HTTP/1.1", upstream: "fastcgi://unix:/run/php-fpm/www.sock", host: "172.16.10.202", referrer: "http://172.16.10.202/dev/html/deploy.php"

Answer 1

问题是，我将我的私有函数重命名为exec()，而不考虑这个实际内置的PHP函数。

这是我更改的代码的一部分：

// Execute Job here
    $this->execTask($this->cmd);
  }

  // Method used to execute the python back-end engine
  private function execTask($cmd = null){
     if(!$cmd){
         throw new Exception("No command given");
         die('No command given');
     }
     shell_exec("/usr/bin/nohup ".$cmd." > /dev/null 2>&1 &");
  }