1. get Mike Perham’s latest memcache-client on github or simply:

   sudo gem install memcache-client

   make sure to remove any other memcache-client gems from your system.

2. follow Mike’s instructions to performs brain surgery on the Ruby environment to override ActiveSupport memcache-client
3. to control the MemCacheStore initialization using the options in your memcached.yml file, grab my memcached-config code from github
4. include the following code in your environments/*.rb files:

   
   unless (memcached_config = MemcachedConfig.new).disabled?
     memcached_options = memcached_config.options
     config.cache_store = :mem_cache_store, memcached_options.delete(:servers), memcached_options
   end
   

By using MemcachedConfig this way, all the recognized options by memcache-client in your memcached.yml config file, such as :namespace, will be used. You can also add specific memcache-client options such as :failover or :timeout in you memcached.yml.