我们本周在生产环境中部署了第一个 Symfony2 网站。
奇怪的事情开始在服务器上发生，但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，也发现了同样的错误。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apache2+mod_php和nginx+php-fpm，php版本都是5.3.3。 Symfony 是 2.0.9。
有些请求只是返回空白屏幕，并且在错误日志中出现以下错误:
[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
我们真的很难找出问题有没有其他人有这种问题？任何帮助将不胜感激。
最佳答案
根据我的经验，当您遇到类似这样的奇怪错误时，尤其是当您在不合理的地方看到随机的“非对象”问题时，问题始终是内存问题。确切地说，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，它不再是一个对象。我只见过几次，但它一直与 APC 的问题有关。事实上，在我的上一份工作中，我们在升级到 PHP 5.3 后遇到了类似的问题——大部分时间它都可以工作，但 APC 最终会耗尽内存，我们会得到这些错误。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。我肯定会调查 APC - 我真的认为这是你的问题。具体来说，APC 不会刷新其旧内存以为新内容腾出空间。
祝你好运!
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/