php-reque：worker“MySQL服务器已经消失”

Question

我开始使用php-resque（https://github.com/chrisboulton/php-resque）以及php和mysql服务器。我看到工作人员发现“MySQL服务器已经消失”的错误。

工作排队代码：

if ($request->command == 'custom_script') {  
    //error_log("before queue"); 
    Resque::enqueue($queue, 'AsyncTest', array('text'=>'yolo')); 
    //error_log("after queue"); 
} 

作业类：

class AsyncTest{ 
public function setUp() { 
    # Set up something before perform, like establishing a database connection 
    $mysql = Mysql::getInstance(); 
    EH::setErrorHandler(); 
} 

public function perform() 
{ 
//  $mysql = Mysql::getInstance(); 
    // EH::setErrorHandler(); 
    //error_log($this->args['text']); 
    $haiku_step_query= $mysql->query("SELECT id FROM haiku LIMIT 10 OFFSET 1"); 
    $row = $mysql->fetch_assoc($haiku_step_query); 
    $haiku_id = $row['id']; 
} 
public function tearDown() { 
    # Run after perform, like closing resources 
} 
} 

之我见 “MySQL服务器消失” 的错误消息：

MySQL ERROR №2006 MySQL server has gone away[qs:SELECT id FROM haiku LIMIT 10 OFFSET 1] 

(/var/www/html/haiku_server/vendor/chrisboulton/php-resque/resque.php line 77 
Resque_Worker->work(5) >> /var/www/html/haiku_server/vendor/chrisboulton/php-resque/lib/Resque/Worker.php line 199 
Resque_Worker->perform(Object) >> /var/www/html/haiku_server/vendor/chrisboulton/php-resque/lib/Resque/Worker.php line 237 
Resque_Job->perform() >> /var/www/html/haiku_server/vendor/chrisboulton/php-resque/lib/Resque/Job.php line 182 
AsyncTest->perform() >> /var/www/html/haiku_server/includes/bgJobs/AsyncThreads.php line 48   
Mysql->query("SELECT id FROM haiku LIMIT 10 OFFSET 1") >> /var/www/html/haiku_server/includes/Mysql.class.php line 113 ) 

请注意，这不发生，那是MySQL工作正常，当我做的操作无白皮书 - resque，如：

if ($request->command == 'custom_script') { 
    $mysql = Mysql::getInstance(); 
    EH::setErrorHandler(); 
    $haiku_step_query= $mysql->query("SELECT id FROM haiku LIMIT 10 OFFSET 1"); 
    $row = $mysql->fetch_assoc($haiku_step_query); 
    $haiku_id = $row['id']; 

}

Answer 1

看看这个问题： https://github.com/chrisboulton/php-resque/issues/269

一个可能的原因是，因为这项工作是第一次运行之后，你的对象将保持加载到内存中，包括你的MySQL连接。解决方案是在执行方法中重新连接到MySQL。