tomcat负载均衡:实战中整理出tomcat集群和负载均衡来源: 发布时间:星期二, 2008年12月16日 浏览:14次 评论:0
实战中整理出tomcat集群和负载均衡
(  )环境介绍说明 (1)服务器有4台  台安装apache, 3台安装tomcat (2)apache2.0.55、tomcat5.5.15、jk2.0.4、jdk1.5.6或jdk1.4.2 (3)ip配置, 台安装apache ip为192.168.0.88, 3台安装tomcat服务器ip分别为192.168.0.1/2/4 ( 2)安装过程 (1)在 3台要安装tomcat 服务器上先安装jdk (2)配置jdk 安装路径,在环境变量path中加入jdkbin路径,新建环境变量JAVA_HOME指向jdk安装路径 (3)在 3台要安装tomcat 服务器上分别安装tomcat,调试 3个tomcat到能够正常启动 (4)tomcat 默认WEB服务端口是8080,默认模式是单独服务,我 3个tomcatWEB服务端口修改为7080/8888/9999 修改位置为tomcat 安装目录下conf/server.xml 修改前 配置为 <Connector port="8080" maxHttpHeaderSize="8192" maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" /> 修改后 配置为 <Connector port="7080" maxHttpHeaderSize="8192" maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" /> 依次修改每个tomcat 监听端口(7080/8888/9999) (5)分别测试每个tomcat 启动是否正常 http://192.168.0.1:7080 http://192.168.0.2:8888 http://192.168.0.4:9999 ( 3)负载均衡配置过程 (1)在那台要安装apache 服务器上安装apache2.0.55,我安装路径为默认C:\Program Files\Apache Group\Apache2 (2)安装后测试apache能否正常启动 调试到能够正常启动http://192.168.0.88 (3)下载jk2.0.4后解压缩文件 (4)将解压缩后 目录中modules目录中mod_jk2.so文件复制到apache安装目录下modules目录中,我为C:\Program Files\Apache Group\Apache2\modules (5)修改apache 安装目录中conf目录配置文件httpd.conf在文件中加LoadModule模块配置信息最后加上句LoadModule jk2_module modules/mod_jk2.so (6)分别修改 3个tomcat 配置文件conf/server.xml修改内容如下 修改前 <!-- An Engine represents the entry po  (within Catalina) that processes every request. The Engine implementation for Tomcat stand alone analyzes the HTTP headers  d with the request, and passes them on to the appropriate Host (virtual host). --> <!-- You should  jvmRoute to support load-balancing via AJP ie : <Engine name="Standalone" defaultHost="localhost" jvmRoute="jvm1"> --> <!-- Define the top level container in our container hierarchy --> <Engine name="Catalina" defaultHost="localhost"> 修改后 <!-- An Engine represents the entry po (within Catalina) that processes every request. The Engine implementation for Tomcat stand alone analyzes the HTTP headers d with the request, and passes them on to the appropriate Host (virtual host). --> <!-- You should jvmRoute to support load-balancing via AJP ie :--> <Engine name="Standalone" defaultHost="localhost" jvmRoute="tomcat1"> <!-- Define the top level container in our container hierarchy <Engine name="Catalina" defaultHost="localhost"> --> 将其中 jvmRoute="jvm1"分别修改为jvmRoute="tomcat1"和jvmRoute="tomcat2"和jvmRoute="tomcat3" (7)然后重启 3个tomcat 调试能够正常启动 (8)在apache 安装目录中conf目录下创建文件workers2.propertie写入文件内容如下 # fine the communication channel [channel.  :192.168.0.1:8009] info=Ajp13 forwarding over #配置第 个服务器 tomcatId=tomcat1 #要和tomcat 配置文件server.xml中jvmRoute="tomcat1"名称致 debug=0 lb_factor=1 #负载平衡因子 数字越大请求被分配几率越高 # Define the communication channel [channel. :192.168.0.2:8009] info=Ajp13 forwarding over tomcatId=tomcat2 debug=0 lb_factor=1 # Define the communication channel [channel. :192.168.0.4:8009] info=Ajp13 forwarding over tomcatId=tomcat3 debug=0 lb_factor=1 [status:] info=Status worker, displays runtime information. [uri:/jkstatus.jsp] info=Display status information and checks the config file for changes. group=status: [uri:/*] info=Map the whole webapp debug=0 (9)在 3个tomcat 安装目录中webapps建立相同应用,我和应用目录名为TomcatDemo,在 3个应用目录中建立相同 WEB-INF目录和页面index.jsp,index.jsp页面内容如下 <%@ page contentType="text/html; char =GBK" %> <%@ page import="java.util.*" %> <html><head><title>Cluster App Test</title></head> 0
相关文章
读者评论
发表评论 |
 |
专注于互联网--专注于架构 |
最新标签 网站地图 文章索引 Rss订阅 |
