Hi Howard,
1. Be sure to load following module
LoadModule headers_module modules/mod_headers.so
2. Add following Header directive at the last of httpd.conf file.
Header add Cache-Control max-age=3600 (in seconds)
Here we can decide that what is the maximum age of cached response.
If max-age passed then apache again sends request to backend(tomcat) for re-caching, if the body of response is not found modified then 304 status is found means existing cache would be used.If body changed then then it is re-cached. You can use any amount of time to decide re-caching.
Thanks
Narendra
-----Original Message-----
From: howard chen [mailto:howachen@xxxxxxxxx]
Sent: Wednesday, April 16, 2008 4:09 PM
To: users@xxxxxxxxxxxxxxxx
Subject: Re: Apache dynamic page caching?
Hi,
On Wed, Apr 16, 2008 at 3:53 PM, Nick Kew <nick@xxxxxxxxxxxx> wrote:
>
> mod_cache.
>
>
The problem with mod_cache is when user update a page, how do I tell
the cache should be removed from mod_cache?
Currently I stored the cache in local file system and it can be easily
unlink() to force an update. In the context of dynamic page, I don't
have field such as last modifed or etag.
Howard
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