在CakePHP站点上“无法编写”错误

问题描述

我有一个CakePHP网站，这是抛出的错误（它是罚款的，并已上线几个月 - 不确定问题开始时）。

我得到：

  [CORE / Cake / Cache / Cache.php，line 310] 
警告（512）：_cake_model_缓存无法写入default_projects到Apc缓存[CORE / Cake / Cache / Cache.php ，line 310] 
警告（512）：_cake_model_缓存无法将default_clients写入Apc缓存[CORE / Cake / Cache / Cache.php，第310行] 
警告（512）：_cake_model_缓存无法将'default_clients'写入Apc缓存[CORE / Cake / Cache / Cache.php，第310行] 
警告（512）：_cake_model_缓存无法将default_projectpages写入Apc缓存[CORE / Cache / Cache.php，line 310] 
警告（512）：_cake_model_缓存无法写入default_projectpages到Apc缓存[CORE / Cake / Cache / Cache.php，第310行] 
警告512）：_cake_model_缓存无法写入'default_settings'到Apc缓存[CORE / Cake / Cache / Cache.php，第310行] 
警告（512）：_cake_model_缓存无法写入default_settings到Apc缓存[CORE / Cake / Cache / Cache.php，line 310] 
  

tmp目录是可写的（已将其和所有包含的文件夹和文件设置为0777;也检查它确实更新正确，它确实）;我也通过将调试级别设置为0，关闭了在core.php中的错误报告。

大多数网站是罚款，但这个特定的页面被拉入AJAX，我不知道是否有什么区别。

我已经修补它通过设置显示：无蛋糕错误，但我需要了解为什么会发生这种情况。首先，是什么原因造成的错误？

解决方案

感谢您的帮助！ / div>

在Zend Server 7上运行CakePHP站点时，我收到了这个APC缓存错误。不幸的是，Zend Server似乎附带了伪造/替换 ，并且从我的测试变量数据存储不工作（函数总是返回false），这是CakePHP抱怨。

在ZendServer仪表板显示APC。

解决方案是：

1. 完全停用APC通过编辑 app / Config / core.php 缓存，以注释掉以下行...

     / * if（extension_loaded（'apc'）&&&&function_exists（'apc_dec'）&&&php_sapi_name（）！=='cli'|| ini_get（'apc.enable_cli'） ））{
    $ engine ='Apc'; 
   } * / 
     




2. 或者，您只能有条件地载入APC。在我的case我只是想禁用它在我的本地开发服务器，但使其活动生产。

     $ isLocalDevelopment = strpos （$ _SERVER ['SERVER_NAME']，'.dev'）; 
    if（！$ isLocalDevelopment&& extension_loaded（'apc'）&& amp;&&&&&php_sapi_name（）！=='cli'|| ini_get enable_cli'）））{
    $ engine ='Apc'; 
   } 
     

I've a CakePHP site which is throwing errors (it was fine at first, and has been online for several months - not sure when the problem started).

I'm getting:

[CORE/Cake/Cache/Cache.php, line 310]
Warning (512): _cake_model_ cache was unable to write 'default_projects' to Apc cache [CORE/Cake/Cache/Cache.php, line 310]
Warning (512): _cake_model_ cache was unable to write 'default_clients' to Apc cache [CORE/Cake/Cache/Cache.php, line 310]
Warning (512): _cake_model_ cache was unable to write 'default_clients' to Apc cache [CORE/Cake/Cache/Cache.php, line 310]
Warning (512): _cake_model_ cache was unable to write 'default_projectpages' to Apc cache [CORE/Cake/Cache/Cache.php, line 310]
Warning (512): _cake_model_ cache was unable to write 'default_projectpages' to Apc cache [CORE/Cake/Cache/Cache.php, line 310]
Warning (512): _cake_model_ cache was unable to write 'default_settings' to Apc cache [CORE/Cake/Cache/Cache.php, line 310]
Warning (512): _cake_model_ cache was unable to write 'default_settings' to Apc cache [CORE/Cake/Cache/Cache.php, line 310]

I've made sure that the tmp directory is writeable (have set it and all contained folders and files to 0777; also checked that it did update properly, and it did); I've also switched off error reporting in core.php by setting the debug level to 0.

Most of the site is fine, but this particular page is pulled in by AJAX, and I don't know whether that's making any difference.

I've patched it by setting "display: none" on cake-error, but I need to understand why this is happening. Firstly, what's causing the error? And secondly, why is the core setting being ignored?

Thanks for any help!

解决方案

I was getting this APC caching error when running a CakePHP site on Zend Server 7. Unfortunately Zend Server appears to ship with a fake/substitute APC layer, and from my tests the variable data-store doesn't work (the functions always return false) which is what CakePHP is complaining about.

This screen in the ZendServer dashboard shows APC.

The solution is to either:

1. Completely disable APC caching by editing app/Config/core.php to comment out the following lines...

   /*if (extension_loaded('apc') && function_exists('apc_dec') && (php_sapi_name() !== 'cli' || ini_get('apc.enable_cli'))) {
       $engine = 'Apc';
   }*/
   

2. OR, you can only load APC conditionally. In my case I just wanted to just disable it on my local development server but leave it active for production.

   $isLocalDevelopment = strpos($_SERVER['SERVER_NAME'], '.dev');
   if (!$isLocalDevelopment && extension_loaded('apc') && function_exists('apc_dec') && (php_sapi_name() !== 'cli' || ini_get('apc.enable_cli'))) {
       $engine = 'Apc';
   }
   

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