Apache与JBoss AS 5 HTTP集群配置
2012-11-09 10:33
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所需组件
Apache 2.2.22mod_jk 1.2.3
JBOSS 5.1.0GA
安装步骤
安装Apache2.2.22
将
mod_jk-1.2.30-httpd-2.2.3.so重命名为
mod_jk.so,复制到
%APACH_HOME%/modules
解压缩
jboss 5.1.0.GA
配置
在%APACHE_HOME%\conf\http.conf文件中添加如下内容:
LoadModule jk_module modules/mod_jk.so # Where to find workers.properties JkWorkersFile conf/workers.properties # where to find the log file JkLogFile logs/mod_jk.log # set the log level set the log level JkLogLevel info # map to the status server JkMount /private/admin/mystatus mystatus # router the request to the right host JkMount /* balance
然后再
%APACHE_HOME%\conf\下新建
workers.properties文件,并添加如下内容:
# define list of workers that will be used # for mapping requests worker.list=balance,mystatus # Define Node1 worker.node1.port=8009 worker.node1.host=xxx.xxx.xxx.xxx worker.node1.type=ajp13 worker.node1.lbfactor=1 worker.node1.socket_timeout=30 worker.node1.socket_keepalive=1 # Define Node2 worker.node2.port=8009 worker.node2.host=yyy.yyy.yyy.yyy worker.node2.type=ajp13 worker.node2.lbfactor=1 worker.node2.socket_timeout=30 worker.node2.socket_keepalive=1 # Load-balancing behaviour worker.balance.type=lb worker.balance.balance_workers=node1,node2 worker.balance.sticky_session=1 # Status worker for managing load balancer worker.mystatus.type=status
以上内容用于配置mod_jk,使其监听两个servlet容器(如JBOSS实例)node1和node2。
在node1中,打开
%JBOSS_HOME%/server/all/deploy/jbossweb.sar/server.xml,修改
Engine节点:
<Engine name="jboss.web" defaultHost="localhost" jvmRoute="node1">
同样,在node2中,将该文件的
Engine节点改为:
<Engine name="jboss.web" defaultHost="localhost" jvmRoute="node2">
JBOSS默认的session是共享的。
在部署Web应用时,需要在应用程序的
web.xml中加入
<distributable/>节点,如下所示:
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd"> <web-app> <display-name>Welcome to JBoss</display-name> <description> Welcome to JBoss </description> <distributable/> <!-- ……其他配置 --> </web-app>
启动
启动Apache
打开控制台,定位到%APACHE_HOME%,输入如下命令启动Apache服务器:
httpd.exe -k start
输入如下命令可以关闭Apache服务器:
httpd.exe -k shutdown
以集群方式启动JBOSS
以集群方式启动JBOSS的命令如下:run -c all -g DocsPartition -u 239.255.100.100 -b 0.0.0.0 -Djboss.messaging.ServerPeerID=1
在集群的其他JBOSS实例上,要修改
jboss.messaging.ServerPeerID所对应的值,该值要求在集群中是唯一的。
测试
新建一个test.war文件夹,在该文件夹下创建
index.jsp文件和
WEB-INF文件夹。在
WEB-INF文件夹下创建如前面所示的
web.xml文件。在
index.jsp文件中加入如下内容:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <%@page import="java.util.*"%> <%@page import="java.net.InetAddress;"%> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Cluster App Test</title> </head> <body> <% InetAddress ip = InetAddress.getLocalHost(); //out.println(ip.getHostAddress()); %> This is responsed by <font color="red"> <%=ip.getHostAddress() %></font><br> Host Name : <font color="red"><%=ip.getHostName() %></font><br> Time : <font color="red"><%=new Date() %></font><br> <% ip = null; %> <br/> <br/> <br/> <br/> Server Info: <% out.println(request.getLocalAddr() + " : " + request.getLocalPort()+"<br>");%> <% out.println("<br>Session ID " + session.getId()+"<br>"); // 如果有新的 Session 属性设置 String dataName = request.getParameter("dataName"); if (dataName != null && dataName.length() > 0) { String dataValue = request.getParameter("dataValue"); session.setAttribute(dataName, dataValue); } out.print("<br/> <b>Session 列表</b>"); Enumeration e = session.getAttributeNames(); while (e.hasMoreElements()) { String name = (String)e.nextElement(); String value = session.getAttribute(name).toString(); out.println( name + " = " + value+"<br>"); System.out.println( name + " = " + value); } %> <form action="index.jsp" method="POST"> 名称:<input type=text size=20 name="dataName"> <br> 值:<input type=text size=20 name="dataValue"> <br> <input type=submit> </form> </body> </html>
将该文件夹复制到集群中所有JBOSS实例的
%JBOSS_HOME%/server/all/deploy下,以集群方式重启所有JBOSS实例。
在浏览器中输入
http://localhost:8080/test,观察结果。
参考资料
UsingMod_jk1.2WithJBossTesting Cluster Formation with JGroups
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