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From "Eric Covener" <>
Subject Re: [users@httpd] Combining caching and rewrites
Date Wed, 26 Nov 2008 01:58:10 GMT
On Tue, Nov 25, 2008 at 8:20 PM, wi <> wrote:
> Hi All
> I have a response from an expensive backend service that I would like
> to cache. We already do some caching of static content, and that works
> fine. However, the response that I want to cache is normally generated
> by a rewrite (the last three lines below). So, if I add some caching
> directives, I get the following. Is this likely to work? How does the
> result of the rewrite wind up in the cache?
> (What I'm probably asking is how the response is handled after generation...)
>   <IfModule mod_disk_cache.c>
>      CacheIgnoreCacheControl On
>      CacheDefaultExpire 300
>      CacheIgnoreNoLastMod On
>      CacheStoreNoStore On
>      CacheStorePrivate On
>      CacheRoot /caches/tmp/dbgen
>      CacheEnable disk /expstuff
>  </IfModule>
>  RewriteCond %{REQUEST_METHOD} GET
>  RewriteCond %{REQUEST_URI} ^/expstuff
>  RewriteRule ^/(.*) http://xx.xx.xx.xx:7777/$1 [P,NE,L]

Try it and see, but my guess would be that Apache remembers content
keyeed to "/expstuff/foo" as it gets written the first time -- the
next time through, the Rewrites never get a chance to do anything.

Eric Covener

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