Title: [Plugin: W3 Total Cache] debug info Last modified: August 19, 2016 --- # [Plugin: W3 Total Cache] debug info * [sslhbala82](https://wordpress.org/support/users/sslhbala82/) * (@sslhbala82) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/) * * db cache: * i activated cache but cache says not cached in the debug info. any help to furthut proceed. * Thanks, Bala * [http://wordpress.org/extend/plugins/w3-total-cache/](http://wordpress.org/extend/plugins/w3-total-cache/) Viewing 15 replies - 1 through 15 (of 21 total) 1 [2](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/page/2/?output_format=md) [→](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/page/2/?output_format=md) * [Frederick Townes](https://wordpress.org/support/users/fredericktownes/) * (@fredericktownes) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/#post-1486672) * Could you please try the development version [http://wordpress.org/extend/plugins/w3-total-cache/download/](http://wordpress.org/extend/plugins/w3-total-cache/download/) and submit a bug submission report if the problem persists? * [null_](https://wordpress.org/support/users/null_/) * (@null_) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/#post-1486702) * I’m seeing a similar problem, I originally tried using xcache for page/minify/ db, but nothing was showing as cached in debug. I then switched to disk (enahnced where applicable), and now I see queries being cached, but never the page. * * I downloaded the development version as advised, but the results above are the same. * [moepstar](https://wordpress.org/support/users/moepstar/) * (@moepstar) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/#post-1486727) * I can confirm this behaviour for XCache based caching: According to the debug output nothing ever gets cached – Not the minifying, the page and no DB queries, even though it is set up to the exact opposite 😛 * [Frederick Townes](https://wordpress.org/support/users/fredericktownes/) * (@fredericktownes) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/#post-1486734) * Is xcache properly caching scripts for you? Can you verify in the control panel? Are there errors in your apache error log? Are you using fastcgi? * [moepstar](https://wordpress.org/support/users/moepstar/) * (@moepstar) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/#post-1486740) * XCache itself is working properly, i see lots of cache & variable hits in my monitoring (Munin). Webserver is NGINX and PHP is invoked as (fast)CGI using PHP-FPM. * I’ll try the development version tomorrow to see if that maybe fixes the problems. * [null_](https://wordpress.org/support/users/null_/) * (@null_) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/#post-1486744) * Went back to xcache as well, as thats what I’d like to get working. Using apache( not fcgi), xcache is working, I see hits via its admin panel, but still nothing showing as cached via w3tc. DB queries and pages both return “Enabled” and “Not Cached”. * I’m using the most recent dev version. * * [zxb2](https://wordpress.org/support/users/zxb2/) * (@zxb2) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/#post-1486756) * I can confirm this as well. Nginx here. XCache itself is working – I see variable hits being counted in the admin panel – but W3T says its not serving from the cache (edited SQL info out btw). * * * [null_](https://wordpress.org/support/users/null_/) * (@null_) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/#post-1486757) * don’t suppose either of you could share your nginx conf rewrite rules that work with w3tc? Looking to migrate to nginx, but not unless I can get w3tc working with it. * [moepstar](https://wordpress.org/support/users/moepstar/) * (@moepstar) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/#post-1486762) * Null_: using XCache-based caching you don’t need the rewrite rules, besides for minifying – which are shared in one of the recent threads about it here. * Regarding disk-based caching, the rules would have to be adopted – i’ll look into those in the coming days but won’t make any promise if i’ll be able to translate them 🙂 * [null_](https://wordpress.org/support/users/null_/) * (@null_) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/#post-1486763) * oh excellent! Now if only we can get xcache-based caching working then 🙂 * [Frederick Townes](https://wordpress.org/support/users/fredericktownes/) * (@fredericktownes) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/#post-1486769) * I can’t duplicate this issue. Please edit `lib/W3/Cache/Xcache.php` file: * on line 40: `return xcache_set($key, serialize($var), $expire);` change to: ` return xcache_set($key, $var, $expire);` on line 51: `return @unserialize(xcache_get( $key));` change to: `return xcache_get($key);` * [null_](https://wordpress.org/support/users/null_/) * (@null_) * [15 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/#post-1486770) * so in my case, I had xcache.var_size left at the default of 0. I changed that, and am now seeing the sql queries properly cached via xcache, though my page still isn’t. * When making the changes you specified, originally it gave me errors due to var_size being 0, once fixed, all of my pages then stop working completely with the changed lines. *