Apache-Tomcat-Connectors and building mod_jk
Brian Millett
bmillett at gmail.com
Fri Nov 10 00:10:22 UTC 2006
Timothy Alberts wrote:
>> The easiest answer is that with apache 2.2.3 you do not need it
> anymore.
>> What you want to use is the mod_proxy_ajp module. I've set up a
>> clustered tomcat on a machine and I load balance between the three
>> tomcats with just the following configuration. NOTE that the
>> communication is with "ajp://"
>
> Brian, thank you for the information. Now please excuse me for a moment
> while I curse ASF.
>
> *&!@#*%&!@#*&$*&#*!@&*$!&@#*$&!@#&!*$#&%*!@#$&!@*#&%!@#$*&!*@#&*!@#*#@
> $&!*%&$!*@#&$*!@#!@#%*!@#$&!*@#&$!*@#&$*!@&%*!@&#%**$#&@*&@!#*$&*@#&*&!
> @#%!&@#$*!@&#*!@%&*&@!#$$!*&@!#*$&!@#*&%*&!#$@*&!@&@#$**%&!@
>
> OK, I feel better now.
>
> So I spent the last few days learning/compiling/configuring mod_jk only
> to find out that ASF has invented a new way of doing it. As I research
> this I see many people expressing the same general discontent for this.
>
> Is there a noobies guide for migrating from mod_jk to mod_proxy_ajp
> running around that anyone recommends?
(I replyed to Timothy, then realized I needed to reply to the list)
Basicly, any webapp that you have deployed can be proxyed to with out
any mod_jk vodoo. It just happens. I've a helpdesk.war that I've
deployed. To access it I have the following:
LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
ProxyRequests Off
# Make sure that the virtual host name is passed through to the
# backend servlet container for virtual host support.
ProxyPreserveHost On
# Tell mod_mod proxy that it should not send back the body-content of
# error pages, but be fascist and use its local error pages if the
# remote HTTP stack is sending an HTTP 4xx or 5xx status code.
ProxyErrorOverride On
ProxyPassReverse / ajp://localhost:8009/
<Location "/helpdesk">
<LimitExcept POST GET PUT>
Order Deny,Allow
Deny from all
Allow from none
</LimitExcept>
DirectoryIndex logon.jsp
RewriteEngine On
RewriteRule \.(pl|php|cgi) - [PT,L]
RewriteRule \.(jpg|jpeg|gif|png|html)$ - [PT,L]
RewriteRule ".*/WEB-INF/?.*" - [L,F,NC]
RewriteRule \.(jsp|jspx|do) "ajp://localhost:8009%{REQUEST_URI}" [P,L]
RewriteRule ".*/servlet/.*" "ajp://localhost:8009%{REQUEST_URI}" [P,L]
</Location>
I use the [P,L] options to mod_rewrite to proxy to ajp://. It really is
simple. I beat my head against a wall once I realized how simple it was.
--
Brian Millett - [ Ivanova, "Deathwalker"]
"Justice or immortality. An intriguing choice."
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