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From "Short, Dave" <dave.sh...@pfizer.com>
Subject FW: mod_jk2, virtual hosts, JkUriSet
Date Sat, 21 Sep 2002 05:02:13 GMT
 <<Mod_jk2.zip>> 
 

-----Original Message-----
From: Short, Dave
To: 'Dmitry Letin '
Sent: 9/21/02 12:56 AM
Subject: RE: mod_jk2, virtual hosts, JkUriSet


I have not tried Dmitry's change yet, but attached is the W2K, Tomcat
4.1.10 and Apache 2.0.40 version (compiled tonight 09/20/2002).  For
those on the other side of the world, give it a try.  I'll do the same
tomorrow.

-----Original Message-----
From: Dmitry Letin
To: Tomcat Users List
Sent: 9/20/02 9:43 PM
Subject: Re: mod_jk2, virtual hosts, JkUriSet

I finally found the bug (or whatever it is) that caused problems:
 
in source file jk/native2/server/apache2/mod_jk2.c
in line 680 (I have revision 1.49) that reads:
 
uriEnv = workerEnv->uriMap->mapUri(env, workerEnv->uriMap,NULL,r->uri);
 
"NULL" should be replaced to "r->server->server_hostname" (without the
quotes of course)
 
This NULL - was the reason for invalid handling of virtual hosts.
I have not tested this a lot yet, but virtual hosts are dispached
properly now :-) :-)
 
This fix is for apache2 only.
I actually typed manually the stuff above - could not do copy/paste -
hope I made no typos
 
Recompile mod_jk2.so after this change - and all works!!!!
 
Dmitry
 
 

 

Hello all, 
I'm having the same problem, and I've been banging my head against it on
and 
off for about a week with no more success than anyone else...
Essentially, 
we're all trying to map the root of different virtual hosts to a
different 
context within tomcat, right?  I started looking elsewhere and found
that 
Resin's apache module utilizes the ServerName directive within a 
<VirtualHost> block to select different web apps...  If it's a
make-or-break 
deal, you might want to look there.  Another workaround possibility that
I'm 
toying with now is to use mod_rewrite within apache to redirect *.jsp 
requests from http://www.vhost1.com <http://www.vhost1.com>  to
http://www.vhost1.com/vh1/ <http://www.vhost1.com/vh1/>  and map 
the /vh1/*.jsp uri to the proper context.  It just seems virtual host 
support via mod_jk2 is not possible without duct tape and bubble gum,
which 
is a shame because the unix socket feature is fantastic... 

Ah, for the good old days of JServ/JSSI... 


----- Original Message ----- 
From: Dmitry Letin <dletin@i-com.com> 
To: Tomcat Users List <tomcat-user@jakarta.apache.org> 
Sent: Thursday, September 19, 2002 6:46 PM 
Subject: RE: mod_jk2, virtual hosts, JkUriSet 


> Hi Robert, 
> 
> In my config files I of course use real domains. 
> I did try to use only workers2.properties files for configuration. 
> It seems that virtual host part is ignored, so that these are the same

when 
> jk2 selects worker: 
> 
> 
> 
> # The virtual host part seems to be ignored anyway 
> # [uri:www.vhost1.com:80/*.jsp] - not working as well 
> [uri:www.vhost1.com/*.jsp] 
> worker=ajp13:localhost:8009 
> 
> # The virtual host part seems to be ignored anyway 
> # [uri:www.vhost2.com:80/*.jsp] - not working as well 
> [uri:www.vhost2.com/*.jsp] 
> worker=ajp13:localhost:8013 
> 
> 
> My problem comes from the fact that the virtual host part in uri seems
to 
be ignored 
> when jk2 selects a worker, and only url path is cheched by jk2 code. 
Because that part is the same 
> it is dispached to the same tomcat instance. 
> 
> I do have proper entries in my /etc/hosts file (I'm on Linux) and I
did 
try this as well 
> 
> [uri:142.54.3.10:80] 
> alias=www.vhost1.com:80 
> 
> It did not help. 
> 
> I promise to write a how-to on this if I manage to solve this problem
:-) 
> But I have doubts I can solve it :-( 
> 
> 
> Dmitry 
> 
> 
> 
> 
> -----Original Message----- 
> From: Robert L Sowders [mailto:rsowders@usgs.gov
<mailto:rsowders@usgs.gov> ] 
> Sent: Thursday, September 19, 2002 6:32 PM 
> To: Tomcat Users List 
> Subject: Re: mod_jk2, virtual hosts, JkUriSet 
> 
> Forgot to mention, 
> 
> Here's a snip from the default workers2.properties file from the src 
> 
> [uri:127.0.0.1:8003] 
> info=Example virtual host. Make sure myVirtualHost is in /etc/hosts to

> test it 
> alias=myVirtualHost:8003 
> 
> On a windows machine the hosts file is in
c:\WinNT\system32\drivers\etc 
> You'll also have to define the connector in the server.xml file. 
> 
> 
> 
> 
> 
> 
> "Robert L Sowders" <rsowders@usgs.gov> 
> 09/19/2002 02:48 PM 
> Please respond to "Tomcat Users List" 
> 
> 
>         To:     "Tomcat Users List" <tomcat-user@jakarta.apache.org> 
>         cc: 
>         Subject:        Re: mod_jk2, virtual hosts, JkUriSet 
> 
> Hmmmm, 
> 
> looks like you got some funny domains for those VirtualHosts as well
as 
> some nonstandard JkUriSet statements.  You probably have a problem
with 
> one or both. 
> 
> Others have been successful. 
>
http://www.mail-archive.com/tomcat-user@jakarta.apache.org/msg66171.html
<http://www.mail-archive.com/tomcat-user@jakarta.apache.org/msg66171.htm
l>  
> 
> Make your virtual hosts as fully qualified domains and make your
JkUriSet 
> commands like the example.  Leave the port selection up to the 
> workers2.properties file. 
> 
> Regardless of how you do it, after you are successful a nice step by
step 
> How To would be appreciated by all. 
> 
> rls 
> 
> 
> 
> 
> 
> "Dmitry Letin" <dletin@i-com.com> 
> 09/19/2002 01:24 PM 
> Please respond to "Tomcat Users List" 
> 
> 
>         To:     <tomcat-user@jakarta.apache.org> 
>         cc: 
>         Subject:        mod_jk2, virtual hosts, JkUriSet 
> 
> Hi, 
> 
> Has anybody managed to successfully connect apache virtual hosts to 
> different 
> instances of tomcat using mod_jk2? 
> 
> I spent several days looking at all available documentation, mail
archives 
> 
> and 
> a bit of source code but could not make a working solution. 
> 
> I have no problem connecting to a single TomcatInstance. Problems
start 
> when 
> I need to connect to two separate instances. 
> 
> I did check docs in 
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jk2/index.html
<http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jk2/index.html>  
> and found them not helpful. 
> 
> 
> For simplicity: 
> I need to connect /*.jsp from apache VirtualHost1 to TomcatInstance1 
> and /*.jsp from apache VirtualHost2 to TomcatInstance2 
> 
> I would greatly appreciate if somebody could send required fragments
from 
> a WORKING config files: httpd.conf, workers2.conf and jk2.properties. 
> 
> 
> >From jakarta-tomcat-connectors/jk/native2/server/apache2/mod_jk2.c I 
> found: 
> 
>  * Example: 
>  *   <VirtualHost foo.com> 
>  *      <Location /examples> 
>  *         JkUriSet worker ajp13 
>  *      </Location> 
>  *   </VirtualHost> 
>  * 
>  * This is the best way to define a webapplication in apache. It is 
>  * scalable ( using apache native optimizations, you can have hundreds

>  * of hosts and thousands of webapplications ), 'natural' to any 
>  * apache user. 
> 
> Does it work properly at all? 
> 
> In my case I have: 
> 
> <VirtualHost vh1> 
>      <Location /*.jsp> 
>         JkUriSet worker ajp13:localhost:8009 
>      </Location> 
> </VirtualHost> 
> 
> <VirtualHost vh2> 
>      <Location /*.jsp> 
>         JkUriSet worker ajp13:localhost:8013 
>      </Location> 
> </VirtualHost> 
> 
> But in the end all requests (even from vh1) are routed to worker 
> ajp13:localhost:8013 
> But I expected them to be routed to ajp13:localhost:8009 
> 
> Looks like a bug to me. 
> 
> 
> Thanks, 
> Dmitry Letin 
> 
> 
> 
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