Re: mod_ruby, concurrency, IPC, and object caching.

On Thu, 5 Aug 2004 16:34:42 -0700, Zallus Kanite wrote
> This is more of a design question than anything, but, since mod_ruby 
> allows for persistant objects within libraries, I thought I would 
> ask: I'm writing Yet Another web framework/CMS, and was wondering 
> what the best solution would be to avoid having disparate versions 
> of an object (say, a DB row in a user table) being held in each of 
> Apache's children. Solutions I've thought of:
.
.
.
> 3. Somehow maintain IPC between all the children, perhaps making one 
> (possibly the first to serve a request) responsible for holding a 
> table of such things.
> 
> I can't really think of how to do this; has anyone had any 
> experience with something like this?

You haven't gotten many (any?) replies, so I figured I'd weigh in here.  
Given the model of keeping your CMS code in Apache under mod_ruby, I'd look 
closely at doing #3 with Drb.  Drb is remarkably easy to use, and my hunch 
is that you could apply it to your task without a great deal of trouble.


Kirk Haines