Re: Memcache reset on rails 2.3 with preload

[Eric Wong <normalperson@yhbt.net>]

Troex Nevelin <list@mrtech.ru> wrote:
> What is a right code for resetting memcache connection in after_fork for  
> Rails 2.3 with "preload_app true" on REE?
>
> The only configurations about memcache in my app are:
>
> config/initializers/session_store.rb:
> ActionController::Base.session_store = :mem_cache_store
>
> config/environment.rb:
> config.cache_store = :mem_cache_store

So that uses the memcache-client gem?  I seem to remember that (and
dalli) only connects when it's needed, but I suppose some apps use
memcached at load time.

The following should work, not the most elegant:

  before_fork do |server,worker|
    ObjectSpace.each_object(MemCache) { |mc| mc.reset }
  end

An after_fork would probably send unnecessary messages to the memcached
servers.

> I tried:
> Rails.cache.reset
>
> But it fails to start, looks like this code is for Rails3 only

Hopefully somebody else knows a more elegant way to handle this.

-- 
Eric Wong
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