linux中tomcat群集(tomcat+mod_jk+apache)

 1.在httpd配置添加以下内容。

# Example:
 LoadModule jk_module modules/mod_jk.so
#
JkWorkersFile  conf/workers.properties
JkLogFile logs/mod_jk.log
JkLogLevel info
JkMount /jsp-examples/*.*    machine

2.在workers.properties文件中加入以下内容

worker.list=machine

worker.tomcat1.port=8009
worker.tomcat1.host=192.168.0.21
worker.tomcat1.type=ajp13
worker.tomcat1.lbfactor=10

worker.tomcat2.port=8010
worker.tomcat2.host=192.168.0.21
worker.tomcat2.type=ajp13
worker.tomcat2.lbfactor=10

worker.tomcat3.port=8011
worker.tomcat3.host=192.168.0.21
worker.tomcat3.type=ajp13
worker.tomcat3.lbfactor=10

worker.machine.type=lb
worker.machine.balance_workers=tomcat1,tomcat2,tomcat3

3.在tomcat的server.xml文件中添加以下内容

1.修改Server端口。

<Server port="8005" shutdown="SHUTDOWN">

2.注释默认的连接的端口（ <Connector port="8080"）

 <!--   --><script>
   
   </script> 

 Define a non-SSL HTTP/1.1 Connector on port 8080 
    <Connector port="8080" maxHttpHeaderSize="8192"
               maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
               enableLookups="false" redirectPort="8443" acceptCount="100"
               connectionTimeout="20000" disableUploadTimeout="true" />

3.修改jk端口（要和workers.properties中的端口号中对应）

 <Connector port="8009" enableLookups="false" redirectPort="8443" protocol="AJP/1.3" /> 

4.添加jvmRoute="tomcat1"(要和workers.properties中的对应)

<Engine name="Standalone" defaultHost="localhost" jvmRoute="tomcat1">

5.注释<Engine name="Catalina" 

<!--   --><script>
   
   </script> 

 Define the top level container in our container hierarchy 
    <Engine name="Catalina" defaultHost="localhost">