Comments on: symfony APC cache and Memcache session storage

By: Johnathan Leppert

Johnathan Leppert — Fri, 02 Apr 2010 14:36:19 +0000

I noticed you were missing some parameters (storeCacheInfo, lifetime, and prefix). These are especially needed if you are also using memcache for view caching. I kept having sessions timeout and after I added these it fixed the problem.

Ex:

cache:
class: sfMemcacheCache #[required] define the cache strategy
param:
storeCacheInfo: true
lifetime: 86400
prefix: ‘s_’
servers: # Array of servers
web1:
host: 192.168.1.66
port: 11211
web2:
host: 192.168.1.67
port: 11211
web3:
host: 192.168.1.70
port: 11211

By: brian

brian — Fri, 26 Mar 2010 16:29:41 +0000

Wicked!

Thanks

By: Matt Robinson

Matt Robinson — Thu, 10 Dec 2009 17:24:50 +0000

I’ve used symfony’s memcache storage for sessions too, and it’s joyfully easy to set up, but I think you have to be pretty careful with it. If the cache gets full, sessions will fall off (it’s not called volatile for nothing). You’re right to mention maybe running a dedicated cache for sessions.

Incidentally, I don’t know how it is for Ubuntu 9.04, but 9.10 has a php5-memcache package, so you don’t need to use PECL (that bit’s missing from the article above – does sfMemcacheCache use sockets directly or something?)

Symfony also supports xcache storage as well as APC, and Ubuntu offers the php5-xcache package for that. I’m always more comfortable avoiding pecl because I don’t want unattended security upgrades to break my PHP extensions, I guess.