Configuring Mod_JK 1.2 with Apache httpd 2.2

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　　1. install Apache Httpd server

# intall path, ie. /apache2.2

gunzip -d httpd*.tar.gz
tar -xvf httpd*.tar
cd httpd*
./configure --prefix=/ apache2.2 --enable-ssl
make
make install
 　　2. download mod_jk load balancing module for Apache Httpd Server
　　http://tomcat.apache.org/download-connectors.cgi?Preferred=http://www.apache.org/dist/
　　3. compile & install mod_jk

gunzip *jk*.tar.gz
tar -xvf *jk(.tar
cd *jk*/native
./configure --with-apxs=/apache2.2/bin/apxs
cp apache-2.0/mod_jk.so /apache2.2/modules/
 　　4.edit Apache Httpd conf/httpd.conf

# add the following line
include "conf/mod_jk.conf"
 　　
　　5. create mod_jk.conf within conf/ directory of Apache Httpd Server

LoadModule jk_module modules/mod_jk.so   
JkWorkersFile conf/workers.properties   
JkLogFile logs/mod_jk.log   
JkLogLevel info   
JkLogStampFormat "[%a %b %d %H:%M:%S %Y]"  
# JkOptions indicates to send SSK KEY SIZE   
JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories   
# JkRequestLogFormat   
JkRequestLogFormat "%w %V %T"  
# Add shared memory.   
# This directive is present with 1.2.10 and   
# later versions of mod_jk, and is needed for   
# for load balancing to work properly   
JkShmFile logs/jk.shm   
# Add jkstatus for managing runtime data   
<Location /jkstatus/>   
JkMount status   
Order deny,allow   
Allow from all   
</Location>   

#JkMount /*.html loadbalancer
JkMount /*.seam loadbalancer
 






6. create workers.properties within conf/ directory of Apache Httpd Server





#Definelistofworkersthatwillbeused
#formappingrequests
worker.list=loadbalancer,status
worker.maintain=60
#worker.node0-templateThis feature has been added in jk 1.2.19
worker.node_template.port=8009
worker.node_template.type=ajp13
worker.node_template.lbfactor=1
worker.node_template.socket_timeout=600
worker.node_template.lbfactor=1
#worker.node1
worker.node1.reference=worker.node_template
worker.node1.host=10.18.2.161

#worker.node2
worker.node2.reference=worker.node_template
worker.node2.host=10.18.2.162

#worker.loadbalancer
worker.loadbalancer.type=lb
worker.loadbalancer.balance_workers=node1,node2
worker.loadbalancer.sticky_session=1

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






7 Edit Tomcat/JBoss server.xml

for tomcat: config/server.xml or

for jboss  : server/<server name>/deploy/jbossweb.sar




add jvmRoute attribute to Engine element, eg:




<Engine name="jboss.web" defaultHost="localhost" jvmRoute="node1">




8 Done!