apc

I'm running APC (php cache) on a medium website (13 000 visits a day) on a CentOS server 5 running php 5.3.3 with APC 3.1.4 with 4Gb of RAM. In the last weeks I'm experiencing many " unable to allocate memory for pool " errors in logs, and often the site goes down. I think the problem is in APC. From the stats I see that the cache is full after an hour or two, and the fragmentation always jumps to 100%. This are my config settings of apc.ini: apc.cache_by_default 1 apc.canonicalize 0 apc.coredump_unmap 0 apc.enable_cli 0 apc.enabled 1 apc.file_md5 0 apc.file_update_protection 2 apc.filters apc

Apc doesn't cache files, it only caches user data . When I tested on localhost, APC cached all files I used. But it doesn't work on my shared hosting. Is this a configuration issue? These are the stats from my apc.php (APC 3.0.19): On the above picture, APC doesn't use any memory. This is what phpinfo() gives me: On localhost, i only access http://localhost/test.php . Apc will cache localhost/test.php ( type file ) imediately. but on shared host, i don't see it cache file ( it can cache variable, if i store but don't with file ); apc_add('APC TEST', '123'); echo apc_fetch('APC TEST'); //-- it

What are "Hits & Misses" in reference to APC opcode caching? I've installed APC and it's running great, but I've got "some" misses and I'm wondering if that's "bad". Also, I am running Openx and, as such, am filling up the "Cache full count(s)" pretty quickly. What do I need to change in the configuration to minimize that? Any recommended configurations? Justin Some misses are to be expected. Hits = things are in cache Miss = things not (yet) in cache. New or less-used things will always be a miss, so you'll always expect some. You may need to tune how much memory you're dedicating to APC -

I tried installing APC with pecl on OS X Lion ( sudo pecl install apc ) and it complained about a missing pcre.h file: In file included from /private/tmp/pear/temp/APC/apc.c:44: /usr/include/php/ext/pcre/php_pcre.h:29:10: fatal error: 'pcre.h' file not found #include "pcre.h" So I used MacPorts to install the pcre package ( sudo port install pcre ) but it still complains. How can I fix this? I think this is because MacPorts installs the header files in a different location from where pecl expects them. To fix this error, I symlinked pcre.h to /usr/include : sudo ln -s /opt/local/include/pcre.h

I have just installed yesterday apc and I am now getting this error: FatalErrorException: Error: Cannot instantiate abstract class ACME\WebBundle\Menu\MenuBuilder in /var/www/app/cache/dev/appDevDebugProjectContainer.php line 743 and in that line there is: protected function getEposMain_MenuBuilderService() { return $this->services['epos_main.menu_builder'] = new \ACME\WebBundle\Menu\MenuBuilder($this->get('knp_menu.factory')); } Does any one know what does it mean and what I can do with it? services.yml services: epos_main.menu_builder: class: ACME\WebBundle\Menu\MenuBuilder arguments: ["@knp