mod_jk not forwarding requests to Tomcat

[Ian Stevens <ia...@phantomfiber.com>]

I am running Tomcat4.1.24 with Apache1.3.26 and libapache-mod-jk1.2.5 on a
Debian Woody system.  I have tried to set up mod-jk using the instructions
found at http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jk2/jk/aphowto.html
and using the auto-generated config file.

I added this to the end of my httpd.conf:

	Include /etc/tomcat4/auto/mod_jk.conf

That file contains the following:

	<IfModule !mod_jk.c>
	  LoadModule jk_module /usr/lib/apache/1.3/mod_jk.so
	</IfModule>

	JkWorkersFile "/usr/local/share/tomcat4/conf/jk/workers.properties"
	JkLogFile "/usr/local/share/tomcat4/logs/mod_jk.log"

	JkLogLevel emerg

and was generated by this directive:

	<Listener className="org.apache.ajp.tomcat4.config.ApacheConfig"
        modJk="/usr/lib/apache/1.3/mod_jk.so" forwardAll="true"/>

The workers.properties file contains the following:

	workers.tomcat_home=/usr/local/share/tomcat4
	workers.java_home=/usr/local/j2sdk1.4.1/
	ps=/
	
	worker.list=ajp12, ajp13

	worker.ajp12.port=8007
	worker.ajp12.host=localhost
	worker.ajp12.type=ajp12
	worker.ajp12.lbfactor=1

	worker.ajp13.port=8009
	worker.ajp13.host=localhost
	worker.ajp13.type=ajp13
	worker.ajp13.lbfactor=1

	worker.loadbalancer.type=lb
	worker.loadbalancer.balanced_workers=ajp12, ajp13

	
worker.inprocess.class_path=$(workers.tomcat_home)$(ps)lib$(ps)tomcat.jar

	worker.inprocess.cmd_line=start

	
worker.inprocess.stdout=$(workers.tomcat_home)$(ps)logs$(ps)inprocess.stdout
	
worker.inprocess.stderr=$(workers.tomcat_home)$(ps)logs$(ps)inprocess.stderr

As the above directive indicates, I would like to have all requests to
Apache forwarded to Tomcat.  However, that is not happening and any URL I
try results in a 404 with an error indicating such in Apache's error.log.
No errors indicating failure appear in the obvious spots, and no output
exists in the mod_jk.log indicated above.  The inprocess log files do not
exist, either.

Any ideas as to what could be wrong?  I would like Apache to forward all
requests to Tomcat because I cannot run Tomcat on ports under 1024, and
because I do not really wish to recompile the kernel to enable
port-forwarding.  I had thought mod_jk would be an easier venture.

thanks,
ian.


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RE: mod_jk not forwarding requests to Tomcat

[Ian Stevens <ia...@phantomfiber.com>]

> As the above directive indicates, I would like to have all 
> requests to Apache forwarded to Tomcat.  However, that is not 
> happening and any URL I try results in a 404 with an error 
> indicating such in Apache's error.log.
> No errors indicating failure appear in the obvious spots, and 
> no output exists in the mod_jk.log indicated above.  The 
> inprocess log files do not exist, either.

I have since abandoned attempts to forward everything, and have isolated a
few choice URLs.  I also changed my workers.properties to the following, as
suggested in the Quickstart HOWTO
(http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jk2/jk/quickhowto.html):

	# Define 1 real worker using ajp13
	worker.list=worker1
	# Set properties for worker1 (ajp13)
	worker.worker1.type=ajp13
	worker.worker1.host=localhost
	worker.worker1.port=8009
	worker.worker1.lbfactor=50
	worker.worker1.cachesize=10
	worker.worker1.cache_timeout=600
	worker.worker1.socket_keepalive=1
	worker.worker1.socket_timeout=300

In addition, I uncommented the ajp13 connector, although I am not sure why
it was commented out.

Adding the following line to your mod_jk configuration may forward all
requests, except root:

	JkMount /* worker1

I just tried that and it worked on my system, so if you are having problems
it may work on yours.  

ian.


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