一、规划
前端Apache:192.168.10.135
后端tomcat:192.168.10.132
192.168.10.133
二、配置Tomcat
①配置server.xml
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# vi /usr/local/tomcat/conf/server.xml ##位于103行 TomcatA: <Engine name="Catalina" defaultHost="localhost" jvmRoute="TomcatA"> TomcatB: <Engine name="Catalina" defaultHost="localhost" jvmRoute="TomcatB"> |
②配置测试页
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# cd /usr/local/tomcat/webapps/ROOT # mv index.jsp index.jsp.bak # vi index.jsp |
TomcatA:
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<%@ page language="java" %> <html> <head><title>TomcatA</title></head> <body> <h1><font color="green">TomcatA </font></h1> <table align="centre" border="1"> <tr> <td>Session ID</td> <% session.setAttribute("abc","abc"); %> <td><%= session.getId() %></td> </tr> <tr> <td>Created on</td> <td><%= session.getCreationTime() %></td> </tr> </table> </body> </html> |
TomcatB:
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<%@ page language="java" %> <html> <head><title>TomcatB</title></head> <body> <h1><font color="yellow">TomcatB </font></h1> <table align="centre" border="1"> <tr> <td>Session ID</td> <% session.setAttribute("abc","abc"); %> <td><%= session.getId() %></td> </tr> <tr> <td>Created on</td> <td><%= session.getCreationTime() %></td> </tr> </table> </body> </html> |
三、基于mod_jk实现
①配置mod_jk配置文件
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# vi /etc/httpd/conf/mod_jk.conf JkWorkersFile /etc/httpd/conf/workers.properties ##指出mod_jk工作所需文件位置 JkLogFile logs/mod_jk.log ##指定日志输出文件位置 JkLogLevel debug ##指定日志级别 JkLogStampFormat "[%a %b %d %H:%M:%S %Y]" JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories JkRequestLogFormat "%w %V %T" JkMount /* lbcluster1 ##指定负载均衡器名称 JkMount /status/ stat1 ##指定状态信息 |
②配置worker.properties
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# vi /etc/httpd/conf/workers.properties # workers 列表 worker.list = lbcluster1,stat1 #------------------------------------------------- # tomcat实例1 #------------------------------------------------- worker.TomcatA.type = ajp13 ##定向包协议 worker.TomcatA.host = 192.168.10.132 ##tomcat主机地址 worker.TomcatA.port = 8009 ##TomcatA实例端口 worker.TomcatA.lbfactor = 1 ##负载均衡权重为1 #------------------------------------------------- # tomcat实例2 #------------------------------------------------- worker.TomcatB.type = ajp13 worker.TomcatB.host = 192.168.10.133 worker.TomcatB.port = 8009 worker.TomcatB.lbfactor = 1 #------------------------------------------------- # load balancer worker --负载均衡控制器 # ------------------------------------------------ worker.lbcluster1.type = lb ##负载均衡work，lb内置类 worker.lbcluster1.sticky_session = 0 ##会话是否绑定 worker.lbcluster1.balance_workers = TomcatA, TomcatB ##指定集群拥有实例 worker.stat1.type = status ##状态信息 |
③配置httpd
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# vi /etc/httpd/conf/httpd.conf LoadModule jk_module modules/mod_jk.so ##加载mod_jk模块 Include /etc/httpd/conf/mod_jk.conf ##指定mod_jk配置文件 |
