# Expire\_fragment with memcached **URL:** \ **Category:** Rails\ **Created:** [February 18, 2009, 3:33pm UTC](https://www.ruby-forum.com/t/expire-fragment-with-memcached/160658 "2009-02-18T15:33:33Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![feustine](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/71c47a/32.png) [@feustine](https://www.ruby-forum.com/u/feustine)\ **Post date:** [February 18, 2009, 3:33pm UTC](https://www.ruby-forum.com/t/expire-fragment-with-memcached/160658/1 "2009-02-18T15:33:33Z")
Hello all, We know that memcached or memcached-client doesn’t support regex… But It seems it doesn’t support expire\_fragment either 😕 I’m trying to use expire\_fragment with memcached as following : expire\_fragment(:controller =\> ‘home’, :action =\> :list\_posts) But apparently it’s not supported by memcached : RuntimeError (Not supported by Memcache): /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.1/lib/active\_support/cache/mem\_cache\_store.rb:79:in `delete_matched' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/caching/fragments.rb:128:in`expire\_fragment’ /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action\_controller/benchmarking.rb:26:in `benchmark' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action_controller/benchmarking.rb:37:in`silence’ /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.1/lib/action\_controller/benchmarking.rb:26:in `benchmark’ Would anyone know how to use expire\_fragment with memcached ? Any help will be very appreciated ! Thank you ! ---
**Author:** ![feustine](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/71c47a/32.png) [@feustine](https://www.ruby-forum.com/u/feustine)\ **Post date:** [February 18, 2009, 3:42pm UTC](https://www.ruby-forum.com/t/expire-fragment-with-memcached/160658/2 "2009-02-18T15:42:59Z")
I’m using the timed fragment caching plugin ( [GitHub - georgepalmer/timed\_fragment\_cache: timed\_fragment\_cache](http://github.com/georgepalmer/timed_fragment_cache/tree/master) ) with memcached and i have no problems. Have you configured your caching storage as memcached? - Maurício Linhares [http://alinhavado.wordpress.com/](http://alinhavado.wordpress.com/) (pt-br) | [http://blog.codevader.com/](http://blog.codevader.com/) (en) On Wed, Feb 18, 2009 at 11:33 AM, Marie A. ---
**Author:** ![feustine](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/71c47a/32.png) [@feustine](https://www.ruby-forum.com/u/feustine)\ **Post date:** [February 18, 2009, 3:55pm UTC](https://www.ruby-forum.com/t/expire-fragment-with-memcached/160658/3 "2009-02-18T15:55:22Z")
Well, you could try to use the one i’m using, also, you shoudn’t need to “delete” things from memcached, it does it by itself when it reaches it’s memory limit. - Maurício Linhares [http://alinhavado.wordpress.com/](http://alinhavado.wordpress.com/) (pt-br) | [http://blog.codevader.com/](http://blog.codevader.com/) (en) On Wed, Feb 18, 2009 at 11:51 AM, Marie A. ---
**Author:** ![feustine](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/71c47a/32.png) [@feustine](https://www.ruby-forum.com/u/feustine)\ **Post date:** [February 18, 2009, 3:51pm UTC](https://www.ruby-forum.com/t/expire-fragment-with-memcached/160658/4 "2009-02-18T15:51:56Z")
Of course… I used to implement this plugin : [http://github.com/lacomartincik/memcache-store-with-delete\_matched/tree/master](http://github.com/lacomartincik/memcache-store-with-delete_matched/tree/master) But after a while … When the memcached server starts to be filled up… The plugin make my whole application freeze for some reasons… My proc is used at 100% by dispatch.fcgi (I’m running on lightty). I don’t understand why… Without the plugin and with file store… Everything is fine and the proc used don’t go over 10%. So I’m trying to come back to the basics and make it works without any plugins ! ---
**Author:** ![feustine](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/71c47a/32.png) [@feustine](https://www.ruby-forum.com/u/feustine)\ **Post date:** [February 18, 2009, 7:31pm UTC](https://www.ruby-forum.com/t/expire-fragment-with-memcached/160658/5 "2009-02-18T19:31:35Z")
Maurício Linhares wrote: > Well, you could try to use the one i’m using, also, you shoudn’t need > to “delete” things from memcached, it does it by itself when it > reaches it’s memory limit. > > - > > Maur�cio Linhares > [http://alinhavado.wordpress.com/](http://alinhavado.wordpress.com/) (pt-br) | [http://blog.codevader.com/](http://blog.codevader.com/) > (en) > > On Wed, Feb 18, 2009 at 11:51 AM, Marie A. Ok it’s working thank you 🙂 Would you know how I can delete all the pages related to an action btw ? I have in cache all the pages like : /results/index?page=1 /results/index?page=2 /results/index?page=… /results/index?page=654 How could I delete all the cache for my controller results and my action index ? expire\_fragments(:controller =\> ‘results’, :action =\> ‘index’) obviously doesn’t work !