CommonGround Softworks/Phil McNamara schrieb:
Hi Folks,
Wondered if someone could help me with ideas on this?

Have a configuration where a separate tomcat instance is installed (So apple can't break it :)). Apple's copy of tomcat provided with the machine in not running. The new Tomcat (5.5.7) plays fine on port 8080. i.e.

As mentioned by others: 5.5.7 is *very old*.

http://localhost:8080/index.jsp

We want to move to using apache 2.2 with mod_jk to hand off URI's appropriately to tomcat. Have worked through the material in
http://tomcat.apache.org/connectors-doc/webserver_howto/apache.html

The mod_jk apache module provided with Apple's 10.5 server is enabled.

Added listener to the engine element of server.xml

<Listener className="org.apache.jk.config.ApacheConfig" modJK="/usr/libexec/apache2/mod_jk.so" />

Once you have your final configuration, this isn't needed any more. It's only used to produce a simple basic mod_jk configuration. Tomcat doesn't use the file by itself, instead the generated file needs to be put into the httpd configuration. The generated file is only a very simple default.

The default workers properties file was looked over and edited....

I tweaked the default workers.properties. Here is some of the file content:

# Normaly all you will need to do is un-comment and modify the first three
# properties, i.e. workers.tomcat_home, workers.java_home and ps.
# Most of the configuration is derived from these.
#
# When you are done updating workers.tomcat_home, workers.java_home and ps
# you should have 3 workers configured:
#
# - An ajp12 worker that connects to localhost:8007
# - An ajp13 worker that connects to localhost:8009
# - A jni inprocess worker.
# - A load balancer worker
#
# However by default the plugins will only use the ajp12 worker. To have
# the plugins use other workers you should modify the worker.list property.
#
#

These are only comments.

I did this:


workers.tomcat_home=/Applications/Qilan\ 3/Tomcat_Qilan #note below is the symlink recommended by Apple in technical QA1170 pgm workers.java_home=/Library/Java/Home

Those two don't do anything useful any more. The auto-generation is very outdated, it produces several non-functional configuration lines (although they don't technically harm)


but it was not clear to me what should be changed on worker.list. Left as is, to wit

#------ DEFAULT worket list ------------------------------------------
#---------------------------------------------------------------------
#
#
# The workers that your plugins should create and work with
#
# Add 'inprocess' if you want JNI connector worker.list=ajp12, ajp13

The worker.list contains a comma-separated list of your worker names. Worker names can be freely chosen (no special chars allowed). I would suggest for a simple configuration remove "ajp12" and keep "ajp13".

If your worker is not defined in workers.properties (lines of the form worker.ajp13.XXX=YYY), then it defaults to localhost port 8009 and protocol ajp13. This might be fine in your case, but I would suggest to do an explicit definition of the worker.

# , inprocess

---


Added listener to the engine element of server.xml
<Listener className="org.apache.jk.config.ApacheConfig" modJK="/usr/libexec/apache2/mod_jk.so" />

Once again?

Restarted Tomcat and mod_jk.conf was generated along with the auto
directory and so on.

And so on?
What are the contents of the mod_jk.conf???

Got the Include in Apache 2.2 httpd.conf pointing to mod_jk.conf squared away enough so that Apache starts OK. The include originally errored apache when I tried to backslash to escape the space between Qilan and 3. The below seems to work without an error

Include "/Applications/Qilan 3/Tomcat_Qilan/conf/auto/mod_jk.conf"

Yes, path with spaces ...

The mod_jk apache module provided with 10.5 server is enabled.

Which version of mod_jk?

I port scanned the machine to check that there is a response from port 8009. This would appear to indicate that the ajp13 worker is playing correctly as defined in workers properties.

I just can't seem to get the handoff to happen for URI's that should parse out to be handed to tomcat. All the other tutorial info I have located seems way too dated.

Specifically what I see when I test http://localhost/index.jsp:

Forbidden
You don't have permission to access /index.jsp on this server.
Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request.

Apache/2.2.8 (Unix) mod_ssl/2.2.8 OpenSSL/0.9.7l PHP/5.2.5 mod_jk/1.2.23 Server at localhost Port 80

Aha, so it's mod_jk 1.2.23.

I do see one console error when I start Apache:

4/8/08 10:35:36 PM org.apache.httpd[84287] [Tue Apr 08 22:35:36 2008] [warn] VirtualHost localhost:0 overlaps with VirtualHost localhost:0, the first has precedence, perhaps you need a NameVirtualHost directive

I keep thinking my httpd.conf include is not working properly, but I ran out of ideas on how to modify it without an Apache error.

Would appreciate any thoughts...

Not without the contents of mod_jk.conf :(

You can get a little more info by setting JkLogfLevel to debug and then start httpd and do a single request, which should get forwarded to Tomcat, but which does not work.

Regards,

Rainer

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