WordPress.org

1. crashnet
   Member
   Posted 3 months ago #
   

   Fatal error: Call to undefined function apc_fetch() in /wp-content/plugins/w3-total-cache/lib/W3/Cache/Apc.php on line 158

   Brought down wordpress after the last upgrade was installed. Some other W3TC enabled sites on the same server running same config (but different plugins and themes) did not break.

   http://wordpress.org/extend/plugins/w3-total-cache/

2. Frederick Townes
   Member
   Plugin Author
   Posted 3 months ago #
   

   To manually change engine you can edit the wp-content/w3tc-config/master.php file and change pgcache/dbcache/objectcache.engine => 'apc' to 'disc' where applicapble.

3. crashnet
   Member
   Posted 3 months ago #
   

   That did not work. After I changed all 3 to disc I get a 500 and it doesn't even get logged to the vhost or apache's global error log.

4. crashnet
   Member
   Posted 3 months ago #
   

   Also, eventhough I never before used APC caching, apc.ini is set to load but apc remains off.

   PS: I have newrelic installed.

5. Frederick Townes
   Member
   Plugin Author
   Posted 3 months ago #
   

   Remove the config files in wp-content/w3tc-config/ and wp-content/cache/config, then try again. The plugin does not use APC by default so it must be set elsewhere.

   I could be a config value from your old config in wp-content so if you have no issue resetting settings you can rename the old config file for testing purposes. Its called w3-total-cache-config.php.

6. crashnet
   Member
   Posted 3 months ago #
   

   I replaced every instance of 'apc' for 'disc' in all those config files and the plugin started working. I then upgraded to 0.9.2.7 and this time the upgrade didnt break anything.

   I am not sure why 0.9.2.6 decided to switch all caches to 'apc'

   thanks

Reply

You must log in to post.