[英]php-reque: worker fails with “MySQL server has gone away”
我開始使用php-resque( https://github.com/chrisboulton/php-resque )以及php和mysql服務器。 我看到工作人員出現“ MySQL服務器已消失”錯誤。
作業排隊代碼:
if ($request->command == 'custom_script') {
//error_log("before queue");
Resque::enqueue($queue, 'AsyncTest', array('text'=>'yolo'));
//error_log("after queue");
}
工作類別:
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 = $row['id'];
}
public function tearDown() {
# Run after perform, like closing resources
}
}
我看到“ MySQL服務器已消失”錯誤消息:
MySQL ERROR №2006 MySQL server has gone away[qs:SELECT id FROM haiku LIMIT 10 OFFSET 1]
(/var/www/html/haiku_server/vendor/chrisboulton/php-resque/resque.php line 77
Resque_Worker->work(5) >> /var/www/html/haiku_server/vendor/chrisboulton/php-resque/lib/Resque/Worker.php line 199
Resque_Worker->perform(Object) >> /var/www/html/haiku_server/vendor/chrisboulton/php-resque/lib/Resque/Worker.php line 237
Resque_Job->perform() >> /var/www/html/haiku_server/vendor/chrisboulton/php-resque/lib/Resque/Job.php line 182
AsyncTest->perform() >> /var/www/html/haiku_server/includes/bgJobs/AsyncThreads.php line 48
Mysql->query("SELECT id FROM haiku LIMIT 10 OFFSET 1") >> /var/www/html/haiku_server/includes/Mysql.class.php line 113 )
請注意,這不會發生,也就是說,當我執行php-resque操作時,mysql工作正常,例如:
if ($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'];
}
看一下這個問題: https : //github.com/chrisboulton/php-resque/issues/269
可能的原因是,在第一次運行作業后,您的對象將保持加載到內存中,包括MySQL連接。 一種解決方案是在您的perform方法中重新連接到MySQL。
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