Hi
im very new to tomcat ,i tried out to configure Load balancing in tomcat .configured tomcat1 and tomcat2 .tomcat 1 made to run on port 80 and tomcat 2 made it to run on pot 90.I had deployed the same patch on both the tomcat instant.But whenver tomcat1 get fails tomcat2 never servers tomcat1.server and site get down.Im very new to tomcat application can anyone help me how can i configured load balancing in tomcat server

Httpd.conf

#apache tomcat connector propertise file location
JkWorkersFile "/etc/httpd/conf/workers.properties"
JkLogFile "logs/mod_jk.log"

JkLogLevel debug,error,info
JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "

workers.properties

ps=/


worker.list=worker1,worker2
worker.list=balancer
worker.worker1.port=8081

worker.worker1.host=localhost
worker.worker1.type=ajp13
worker.worker1.lbfactor=1


worker.worker2.port=9092
worker.worker2.host=localhost
worker.worker2.type=ajp13
worker.worker2.lbfactor=2
worker.balancer.type=1b
worker.balancer.balance_workers=worker1,worker2
worker.balance.method=B
worker.balancer.sticky_session=True


worker.balancer.type=1b
worker,balancer.balance_workers=worker1,worker2
worker.balancer.method=B

worker.balancer.sticky_session =True


when i try to start the apache service it not starting up.when i uncomment the below line

worker.balancer.type=1b
worker,balancer.balance_workers=worker1,worker2
worker.balancer.method=B

worker.balancer.sticky_session =True


apache getting started up .Can anyone help me wat could b problem in my conf

Hi,


i had configured Multiple instant of tomcat and configured workers.properties for loadbalancing the worker1,worker2.when i stop the tomcat process on running on port 80 .i could int find worker2 running on port 90 serving apache automatically .Can any one help me how can u loadbalancethe tomcat application server when tomcat1 get crashed i m trying out thetomcat2 to server apache automatically on port 80.




[root@localhost ~]# cd /etc/httpd/conf
[root@localhost conf]# ls
bak1.workers httpd.conf httpd-qa.conf workers.properties
bak.workers.properties httpd-prod.conf magic
[root@localhost conf]# cat workers.properties
#workers.properties

ps=/

worker.list=loadbalancer,status,worker1,worker2


#worker.list=worker1,worker2
#worker.list=balancer

worker.worker1.port=8081
worker.worker1.host=localhost
worker.worker1.type=ajp13
worker.worker1.lbfactor=1

worker.worker2.port=9092
worker.worker2.host=localhost
worker.worker2.type=ajp13
worker.worker2.lbfactor=1

worker.loadbalancer.type=lb
worker.loadbalancer.balance_workers=worker1,worker2
worker.loadbalancer.sticky_session=True
#worker.loadbalancer.sticky_session_force=True
worker.status.type=status


[root@localhost conf]# cd
[root@localhost ~]# cd /opt/apps/tomcat1/conf/
[root@localhost conf]# cat server.xml
<?xml version='1.0' encoding='utf-8'?>
<Server port="6075" shutdown="SHUTDOWN">

<Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
<Listener className="org.apache.catalina.core.JasperListener" />
<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" />
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />

<Service name="Catalina">

<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8081" URIEncoding="UTF-8" />
<Connector port="8081" protocol="AJP/1.3" redirectPort="8081" />

<Engine name="Catalina" defaultHost="localhost">

<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">

<Listener className="org.apache.jk.config.ApacheConfig"
modJk="/etc/httpd/modules/mod_jk.so" />

</Host>
</Engine>
</Service>
</Server>

[root@localhost conf]# cat /opt/apps/tomcat2/conf/server.xml
<?xml version='1.0' encoding='utf-8'?>
<Server port="6095" shutdown="SHUTDOWN">

<Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
<Listener className="org.apache.catalina.core.JasperListener" />
<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" />
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />

<Service name="Catalina">

<Connector port="9090" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="9092" URIEncoding="UTF-8" />
<Connector port="9092" protocol="AJP/1.3" redirectPort="9092" />

<Engine name="Catalina" defaultHost="localhost">

<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">

<Listener className="org.apache.jk.config.ApacheConfig"
modJk="/etc/httpd/modules/mod_jk.so" />

</Host>
</Engine>
</Service>
</Server>