我们本周在生产中部署了我们的第一个Symfony2网站。
在服务器上开始发生奇怪的事情，但是我们无法在本地重现该问题。我们在其他服务器上进行了测试，也捕获了相同的错误。如果有帮助，我们在Amazon ec2上尝试了ubuntu ami，在其他服务器上尝试了debian。同样是apache2 + mod_php和nginx + php-fpm，php版本是5.3.3。 Symfony是2.0.9。
一些请求只是返回黑屏，并在错误日志中显示以下错误：
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/ClassLoader/ApcUniversalClassLoader.php on line 80
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/app/bootstrap.php.cache on line 1152
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/app/bootstrap.php.cache on line 1146
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/app/bootstrap.php.cache on line 464
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/app/bootstrap.php.cache on line 465
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/app/bootstrap.php.cache on line 466
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/app/bootstrap.php.cache on line 666
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/app/bootstrap.php.cache on line 467
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/app/bootstrap.php.cache on line 468
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/app/bootstrap.php.cache on line 469
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/ParameterBag.php on line 34
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/Request.php on line 123
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/ParameterBag.php on line 34
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/Request.php on line 124
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/ParameterBag.php on line 34
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/Request.php on line 125
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/ParameterBag.php on line 34
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/Request.php on line 126
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/FileBag.php on line 48
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/Request.php on line 127
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/ParameterBag.php on line 34
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Warning: Attempt to assign property of non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/Request.php on line 128
[Sun Feb 12 17:09:30 2012] [error] [client 192.168.51.125] PHP Fatal error: Call to a member function getHeaders() on a non-object in /var/www/itop/vendor/symfony/src/Symfony/Component/HttpFoundation/Request.php on line 129
我们真的很想找出问题所在，还有其他人遇到过此类问题吗？任何帮助，将不胜感激。
最佳答案
以我的经验，当您遇到类似这样的奇怪错误时，尤其是当您在无理的地方看到随机的“非对象”问题时，问题总是记忆。从字面上看，正在创建一个对象，但随后该对象在内存中丢失，因此到下一行，它不再是对象。我只看过几次，但这一直与APC的问题有关。实际上，在我的上一份工作中，升级到PHP 5.3后，我们遇到了类似的问题-大部分时间都可以使用，但是APC最终会耗尽内存，并且会出现这些错误。当时（大约一年前），（通过谷歌搜索）似乎在某些情况下PHP和APC存在一些问题。我一定会研究APC-我真的认为这是您的问题。具体来说，APC不会刷新其旧内存来为新事物腾出空间。
祝好运！
关于ubuntu - Symfony2生产失败，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/9249076/