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Posted to users@httpd.apache.org by Eric Covener <co...@gmail.com> on 2008/12/01 01:19:09 UTC
Re: [users@httpd] Clearing cache selectively on Apache + mod_cache
On Sun, Nov 30, 2008 at 9:59 AM, Karim Zaki <Ka...@itworx.com> wrote:
> Greetings all,
>
>
>
> I'm running Apache/2.2.10 (Win32) mod_jk/1.2.27 + mod_cache. I'm looking for
> a way to clear the cache from Apache for specific URLs. I'm using Apache to
> cache dynamic content that is served by Tomcat, and I would like to keep the
> content (age) high (e.g. 24 hours) but still to be able to clear the cache
> for specific pages when the content is updated. Is there a way to tell
> Apache to clear the cache for a specific list of URLs?
>
Try these combinations of headers, comment from cache_util.c:
/*
* We now want to check if our cached data is still fresh. This depends
* on a few things, in this order:
*
* - RFC2616 14.9.4 End to end reload, Cache-Control: no-cache. no-cache in
* either the request or the cached response means that we must
* revalidate the request unconditionally, overriding any expiration
* mechanism. It's equivalent to max-age=0,must-revalidate.
*
--
Eric Covener
covener@gmail.com
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RE: [users@httpd] Clearing cache selectively on Apache + mod_cache
Posted by Karim Zaki <Ka...@itworx.com>.
That sounds like a possible way to go. However, this spills into another question. I have the CacheIgnoreCacheControl directive set to "On" for mod_cache. I know that this means "no-cache" is ignored in the request. Does it also ignore "max-age", or can I force the cache to clear by using "max-age" even if CacheIgnoreCacheControl is on?
Thanks,
-----Original Message-----
From: Eric Covener [mailto:covener@gmail.com]
Sent: Monday, December 01, 2008 2:19 AM
To: users@httpd.apache.org
Subject: Re: [users@httpd] Clearing cache selectively on Apache + mod_cache
On Sun, Nov 30, 2008 at 9:59 AM, Karim Zaki <Ka...@itworx.com> wrote:
> Greetings all,
>
>
>
> I'm running Apache/2.2.10 (Win32) mod_jk/1.2.27 + mod_cache. I'm looking for
> a way to clear the cache from Apache for specific URLs. I'm using Apache to
> cache dynamic content that is served by Tomcat, and I would like to keep the
> content (age) high (e.g. 24 hours) but still to be able to clear the cache
> for specific pages when the content is updated. Is there a way to tell
> Apache to clear the cache for a specific list of URLs?
>
Try these combinations of headers, comment from cache_util.c:
/*
* We now want to check if our cached data is still fresh. This depends
* on a few things, in this order:
*
* - RFC2616 14.9.4 End to end reload, Cache-Control: no-cache. no-cache in
* either the request or the cached response means that we must
* revalidate the request unconditionally, overriding any expiration
* mechanism. It's equivalent to max-age=0,must-revalidate.
*
--
Eric Covener
covener@gmail.com
---------------------------------------------------------------------
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