Excellent!! Thanks very much. ----- Original Message ----- From: "Paul Horbal" <horbal@vlsi.enel.ucalgary.ca> To: "Chris McDonough" <chrism@zope.com> Cc: "Oliver Bleutgen" <myzope@gmx.net>; <zope@zope.org> Sent: Thursday, November 29, 2001 3:36 PM Subject: Re: [Zope] ZServer -> Apache/mod_proxy -> mod_gzip: Possible!!! (How-To now available)
Chris, Everyone,
I've put together a fairly detailed How-To describing how to use mod_gzip for Apache to compress Zope documents that are proxied via mod_proxy (ProxyPass). You can find it here:
http://www.zope.org/Members/softsign/
Feedback is welcome!
cheers, Paul.
On Thu, Nov 29, 2001 at 10:30:18AM -0500, Chris McDonough wrote:
Hi Paul, this is good stuff. Would you mind turning this into a HowTo on Zope.org?
----- Original Message ----- From: "Paul Horbal" <horbal@vlsi.enel.ucalgary.ca> To: "Oliver Bleutgen" <myzope@gmx.net> Cc: <zope@zope.org> Sent: Wednesday, November 28, 2001 1:35 PM Subject: Re: [Zope] ZServer -> Apache/mod_proxy -> mod_gzip: Possible???
Hi everyone...
After following Oliver's advice and bumbling through the mod_gzip mailing list further, I've gotten mod_gzip to start compressing all the Zope stuff served through Apache. Here's a listing of the entries in my httpd.conf for anybody else that would like to try it (I highly recommend it):
# In the main part of httpd.conf
mod_gzip_on Yes mod_gzip_can_negotiate Yes mod_gzip_add_header_count Yes mod_gzip_minimum_file_size 400 mod_gzip_maximum_file_size 0 mod_gzip_temp_dir /tmp mod_gzip_keep_workfiles No mod_gzip_maximum_inmem_size 100000 mod_gzip_dechunk Yes
mod_gzip_item_include mime ^text/* mod_gzip_item_include mime httpd/unix-directory mod_gzip_item_include file \.htm$ mod_gzip_item_include file \.html$ mod_gzip_item_include handler proxy-server mod_gzip_item_include handler cgi-script
mod_gzip_item_exclude rspheader Content-Type:image/* mod_gzip_item_exclude mime text/css mod_gzip_item_exclude file \.css$ mod_gzip_item_exclude file \.js$
# Now the VirtualHost for my Zope ZServer
<VirtualHost xxx.xxx.xxx.xxx> ServerName www.foo.com ServerAdmin me@foo.com
ProxyPass / http://foo:8080/zopedir/ ProxyPassReverse / http://foo:8080/zopedir/ ProxyPass /misc_ http://foo:8080/misc_ ProxyPass /p_ http://foo:8080/p_ </VirtualHost>
Note the salient features:
a) ...include mime ^text/* -- tells mod_gzip to look for any file with a mime type of "text" - this includes most stuff served up through Zope IIRC
b) ...include handler proxy-server -- reminds mod_gzip to try and intercept mod_proxy requests too (this is the part I was missing)
c) ...exclude rspheader Content-Type:image/* -- tells mod_gzip not to bother compressing images (the gain is minimal in most cases and actually chokes NS4 browsers)
cheers, Paul.
On Wed, Nov 28, 2001 at 10:21:17AM +0100, Oliver Bleutgen wrote:
Paul Horbal wrote:
Hi everyone,
I've searched high and low but I can't find any documentation for setting up mod_gzip to work with a Zope server (ZServer) being served through Apache's mod_proxy with the ProxyPass directives.
Is this possible at the moment? Is there maybe a Zope product that handles gzipping served pages? This seems like a really good idea...
I have mod_gzip working with Apache - other VirtualHosts on the same machine that aren't proxied serve gzipped pages - but apparently mod_proxy and mod_gzip don't like to play in the same sandbox. Other people have reported success using mod_rewrite instead... Is there some sort of performance hit you sustain in this case? If not, how do you set that up? =)
HI Paul,
I use mod_proxy + mod_gzip and it works great - if it weren't for the damn browsers ;-). Seriously, there can be some gotchas, but all encountered were client side problems.
I use mod proxy, invoced via a rewrite rule (RewriteRule .... [P]) The only thing which might be special is mod_gzip_item_include handler proxy-server
There are some examples on the mod_gzip homepage&mailing lists.
cheers, oliver
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-- horbal@atips.ca
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