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From Justin Erenkrantz <>
Subject Re: [PATCH] mod_cache fixes: #8
Date Mon, 02 Aug 2004 18:07:32 GMT
--On Monday, August 2, 2004 9:21 AM -0400 Brian Akins <> 

> In a low traffic site, yes.  In a very high traffic site, with lots of
> objects, the mkdir's kill you.  After a "while,"  most of the directories
> will be created.  However, bringing up a "fresh" server behind a very busy
> site is bad in this case.  Perhaps, what mod_disk_cache does now is best and
> the pre-make directories script should be "contrib."


> Also, any thought son how to handle Vary?  I have a way to do it in our
> cache, but it seriously violates the RFC's.  There is a config directive
> that defines what aspects of the request are used to generate the MD5
> (virtual host, url, args, header values, environment values, etc.) and thats
> it.  Only useful when you know a lot about the content being served, which
> is the case for a reverse proxy usually.

After I know that mod_cache isn't doing anything stupid or damaging 
performance-wise, I'd like to start being more aggressive about what we can 
cache.  From my perspective, these patches I've posted (and started to commit) 
are just the beginning of trying to get mod_cache on more solid ground both 
performance and RFC-wise.  And, that needs to happen before mod_cache can even 
get out of experimental...  -- justin

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