Apache & Tomcat Load balancing via Mod_jk issue

Question

I hope this finds you all in the best of your health and spirits. I have an issue with a new setup where I currently have 1 APACHE 2.2.15 & Tomcat 6.0.14 on RHEL. Mod_JK version 1.2.30. Ill add the second Tomcat when this starts working.

So when I try to point my browser to apache-host: port i get IT WORKS , but if point browser to host: port //examples/jsp/ i get a 404....apache isnt forwarding requests to Tomcat Tomcat works fine , i can browse to the JSP examples page and run stuff. I just cannot do it through the apache. Any help is very much appreciated...please help!!!!!

Here are my configs.... no virtual hosts configured...

HTTPD.CONF 
Include conf/jk/mod_jk.conf 
LoadModule jk_module modules/mod_jk.so 

MOD_JK.CONF 
JkWorkersFile conf/jk/workers.properties 
JkShmFile logs/mod_jk.shm 
JkLogFile logs/mod_jk.log 
JkLogLevel info 
JkLogStampFormat "[%a %b %d %H:%M:%S %Y] " 

WORKERS.PROPERTIES 
worker.list=loadbalancer,status 

# Node #1 properties 
worker.worker1.type=ajp13 
worker.worker1.host=localhost 
worker.worker1.port=8009 
worker.worker1.lbfactor=1 

# Node #2 properties(will be configured later when apache and node 1 start working) 
worker.worker2.type=ajp13 
worker.worker2.host=localhost 
worker.worker2.port=001 
worker.worker2.lbfactor=1 

# Load-balancing behaviour 
worker.loadbalancer.type=lb 
worker.loadbalancer.balance_workers=worker1,worker2 

# Status worker for managing load balancer 
worker.status.type=status 

#JkMount /* loadbalancer 
JkMount /examples/jsp lb 
JkMount /examples/jsp/* lb 


tomcat server.xml has this 
<Service name="Catalina"> 
... 
<!-- Define an AJP 1.3 Connector on port 8009 --> 
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> 
... 
</Service>

Solution

WORKERS.PROPERTIES

# Load-balancing behaviour 
worker.loadbalancer.type=lb 
worker.loadbalancer.balance_workers=worker1,worker2 

#JkMount /* loadbalancer 
JkMount /examples/jsp lb 
JkMount /examples/jsp/* lb

This is wrong. Move the JkMount directive to the mod_jk.conf, something like this:

JkWorkersFile conf/jk/workers.properties 
JkShmFile logs/mod_jk.shm 
JkLogFile logs/mod_jk.log 
JkLogLevel info 
JkLogStampFormat "[%a %b %d %H:%M:%S %Y] " 

JkMount /examples/jsp loadbalancer
JkMount /examples/jsp/* loadbalancer

Notice that the Tomcat worker should be loadbalancer as you defined in the workers.properties, instead of lb.

Comments

[LiuYan 刘研]

where did you put JkMount config? workers.properties? it should be putted in Apache config file (or a file under /etc/httpd/conf.d directory).

[vikingz]

Got it working...

[vikingz]

OK got it working.....after those 2 changes , i found out tomcat ajp port's configuration has an issue...i had this....<Service name="Catalina"> <!-- Define an AJP 1.3 Connector on port 8009 --> <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> </Service> .............................i removed <Service name="Catalina"> and removed /service....and only used <!-- Define an AJP 1.3 Connector on port 8009 --> <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />...tomcat worked fine...no errors.....apache work fine no errors....thank you Quanta & Liu Yuan!!!!