Hi, We are using mod_rewrite to redirect the incoming requests to one of the zope instances running on the same machine. It is an SMP machine and has 4 zope instances. The map basically contains <IP> port1|port2|port3 Where port1 and port2 etc are the ports where the zope is running. The problem is mod_rewrite caches the map file based on map name instead of file as I have mentioned below. But we have solved the problem by using different map names in each of the <VirtualHost> sections. thanks, ganesh Zeomega LLC Open minds' Open Solutions Plano, Texas, USA Bangalore, India phone: 972-731-6750 http://www.zeomega.com On Wed, 2004-07-14 at 02:23, Eugene wrote:
Hello Ganesha, Wednesday, July 14, 2004, 1:40:14 AM, you wrote:
I'm using mod_rewrite with zope but without maps. Can your describe in details your task?
GS> Hi,
GS> I came across a strange behavior of mod_rewrite while using with zope. GS> Although it is not a zope question, I was wondering if any of you have GS> run into this. We are using mod_rewrite to redirect the users to one of GS> the zope sites of a Zeo cluster.
GS> The directive RewriteMap has unexpected behavior when it is used to GS> define more than one map with same map name in diffrent places. Normally GS> all the directives within a tag applies only to that tag.
GS> For example:
GS> <VirtualHost *> GS> ServerName www.foo.com GS> DocumentRoot /var/www/foo GS> RewriteEngine on GS> RewriteLog /var/log/httpd/foo.log GS> RewriteLogLevel 2 GS> RewriteMap map rnd:/etc/httpd/conf/foomap.txt GS> RewriteRule ^/Foo(.*) GS> http://127.0.0.1${map:IP}/VirtualHostBase/http/foo/$1 [L,P] GS> </VirtualHost>
GS> <VirtualHost *> GS> ServerName www.bar.com GS> DocumentRoot /var/www/bar GS> RewriteEngine on GS> RewriteLog /var/log/httpd/bar.log GS> RewriteLogLevel 2 GS> RewriteMap map rnd:/etc/httpd/conf/barmap.txt GS> RewriteRule ^/Bar(.*) GS> http://127.0.0.1${map:IP}/VirtualHostBase/http/bar/$1 [L,P] GS> </VirtualHost>
GS> The above is expected to work. However ModRewrite, does not read the map GS> file foomap.txt or barmap.txt everytime it needs it and it caches the GS> results after the first time it reads for faster operation.
GS> The problem is the cache treats both the file as the same since they GS> have the same name! Hence if you visit foo.com first, the data stored in GS> foomap.txt is returned from the cache next time you visit foo.com or GS> bar.com. This causes apache to redirect into the wrong zope site.
GS> Has anyone else experienced similar problems ?
GS> thanks, GS> ganesh
GS> Zeomega LLC GS> Open minds' Open Solutions
GS> Plano, Texas, USA GS> Bangalore, India GS> phone: 972-731-6750 GS> http://www.zeomega.com
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