Step 1 Download 3 software
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??? 1, Apache2.0.xx
??? 2,Tomcat5.5.1x
??? 3,mod_jk, it is connector of? tomcat
Step 2 Install Apache2.0 at d:\Apache2, start service, then browse http://localhost for testing, you can see welcome page of apache.
Step 3 Install 2?Tomcats at d:\tomcat1 and d:\tomcat2, set JAVA_HOME, PATH, start tomcat service, then browse http://localhost:8080 for test, you can see welcome page of tomcat.
Step 4 Config apache:?
?????? Copy mod_jk.so to d:\apache2\modules.
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?????? Add “include D:\Apache2\conf\mod_jk.conf” in the end of d:\apache2\conf\httpd.conf
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?????? Add a new file: d:\Apache2\conf\mod_jk.conf, the content is as following:
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# Load mod_jk module
LoadModule jk_module modules/mod_jk.so
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# Where to find workers.properties
JkWorkersFile conf/workers.properties
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# Where to put jk logs
JkLogFile logs/mod_jk.log
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# Set the jk log level [debug/error/info]
JkLogLevel info
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# Select the log format
JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "
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# JkOptions indicate to send SSL KEY SIZE
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JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories
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# JkRequestLogFormat set the request format
JkRequestLogFormat "%w %V %T"
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# Send servlet for context /examples to worker named ajp13
#JkMount /servlet/* ajp13
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# Send JSPs for context /examples to worker named ajp13
JkMount /*.jsp loadbalancer
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JkMount /*.htm loadbalancer
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??? Add a new file d:\Apache2\conf\ workers.properties, the content is as following:
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#
# workers.properties
#
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# In Unix, we use forward slashes:
ps=/
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# list the workers by name
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worker.list=tomcat1, tomcat2, loadbalancer
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# ------------------------
# First tomcat server
# ------------------------
worker.tomcat1.port=11009
worker.tomcat1.host=localhost
worker.tomcat1.type=ajp13
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# Specify the size of the open connection cache.
#worker.tomcat1.cachesize
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#
# Specifies the load balance factor when used with
# a load balancing worker.
# Note:
#? ----> lbfactor must be > 0
#? ----> Low lbfactor means less work done by the worker.
worker.tomcat1.lbfactor=100
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# ------------------------
# Second tomcat server
# ------------------------
worker.tomcat2.port=12009
worker.tomcat2.host=localhost
worker.tomcat2.type=ajp13
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# Specify the size of the open connection cache.
#worker.tomcat2.cachesize
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#
# Specifies the load balance factor when used with
# a load balancing worker.
# Note:
#? ----> lbfactor must be > 0
#? ----> Low lbfactor means less work done by the worker.
worker.tomcat2.lbfactor=100
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# ------------------------
# Load Balancer worker
# ------------------------
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#
# The loadbalancer (type lb) worker performs weighted round-robin
# load balancing with sticky sessions.
# Note:
#? ----> If a worker dies, the load balancer will check its state
#??????? once in a while. Until then all work is redirected to peer
#??????? worker.
worker.loadbalancer.type=lb
worker.loadbalancer.balanced_workers=tomcat1, tomcat2
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#
# END workers.properties
#
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Step 5 Config Tomcat
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?????? Modify conf/server.xml file
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??? 1 Add a unique jvmRoute to the Catalina engine
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Near line 100, replace:
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?<Engine name="Standalone" defaultHost="localhost" debug="0">
with:
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??? <Engine jvmRoute="tomcat1" name="Standalone" defaultHost="localhost" debug="0">
For tomcat2, put jvmRoute="tomcat2".
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2 Change the control port
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At line 13, replace:
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??? <Server port="8005"
with:
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??? <Server port="11005"
For the tomcat2 server, replace port 8005 with 12005. This will prevent the two servers from conflicting.
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3 Change the AJP13 port
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At line 75, in the AJP 13 connector definition, replace:
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??? port="8009"
with:
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??? port="11009"
For the tomcat2 server, replace port 8009 with 12009.
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4 Disable the standalone HTTP port
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We don't want or need our tomcat servers to directly respond to HTTP requests. So we comment out the HttpConnector section between lines and 58 in the server.xml file.
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Example:
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<!-- Define a non-SSL HTTP/1.1 Connector on port 8080 -->
<!--
??? <Connector className="org.apache.catalina.connector.http.HttpConnector"
?????????????? port="8080" minProcessors="5" maxProcessors="75"
???????????
???enableLookups="true" redirectPort="8443"
?????????????? acceptCount="10" debug="0" connectionTimeout="60000"/>
-->???
NOTE: If you don't comment this out, you will need to change the port numbers so they don't conflict between tomcat instances.
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Step 6 Test??
????????????1 Create a file named index.jsp and put it in the /usr/local/tomcat1/webapps/ROOT directory:
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<html>
<body bgcolor="red">
<center>
<%= request.getSession().getId() %>
<h1>Tomcat 1</h1>
</body>
</html>
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2 Create a file named index.jsp and put it in the /usr/local/tomcat2/webapps/ROOT directory:
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<html>
<body bgcolor="blue">
<center>
<%= request.getSession().getId() %>
<h1>Tomcat 2</h1>
</body>
</html>
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?????? 3 Browse http://localhost/index.jsp
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