Nginx+Tomcat+MemCached 集群配置手册

2022-11-02 07:54:26

系统实施文档

Nginx+Tomcat+MemCached 集群配置手册

第1章概述

1.1 目标

互联网的快速发展带来了互联网系统的高负载和高可用性, 这要求我们在设计系统架构时会应用很多高性能的产品, 本文主要描述互联网架构中门户应用的集群的配置工作，最终用以指导系统实施。

1.2 预期读者

本文档用于指导系统工程师进行系统实施工作，架构师和系统工程师应该通读本文档，选择适当版本用于自己的系统架构。

第2章产品介绍

2.1 Nginx介绍

Nginx是一个高性能的 HTTP 和反向代理服务器；Nginx 支持简单的负载均衡和容错；Nginx支持作为基本 HTTP 服务器的功能。

2.2 Memcached介绍

Memcached 是一个高性能的分布式内存对象缓存系统，通过在内存里维护一个统一的巨大的hash表，Memcached能够用来存储各种格式的数据，包括图像、视频、文件以及数据库检索的结果等。

第3章配置Session共享

3.1 环境说明

一、准备两台虚拟机，虚拟机上安装CentOS5.4版本；

A服务器IP：192.168.134.135

B服务器IP：192.168.134.136

A机上安装nginx-1.2.0和apache-tomcat-6.0.33

B机上安装memcached-1.4.10和apache-tomcat-6.0.33

二、除此之外，我们还需要一些MSM相关的jar包：

javolution-5.4.3.1.jar

memcached-2.4.2.jar

memcached-session-manager-1.5.1.jar

memcached-session-manager-tc6-1.5.1.jar

msm-javolution-serializer-1.5.1.jar

msm-kryo-serializer-1.5.1.jar

msm-xstream-serializer-1.5.1.jar

以上jar包在http://code.google.com/p/memcached-session-manager/downloads/list中下载。

3.2 配置Session共享

一、将上面所述的MSM的jar包拷贝至Tomcat安装目录lib文件夹中；

二、编辑context.xml

<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"

memcachedNodes="n1: 192.168.134.136:11211"

requestUriIgnorePattern=".*/.(png|gif|jpg|css|js)$"

sessionBackupAsync="false"

sessionBackupTimeout="100"

transcoderFactoryClass="de.javakaffee.web.msm.serializer.javolution.JavolutionTranscoderFactory"

copyCollectionsForSerialization="false"/>

三、重启两个Tomcat。

3.3
配置Nginx负载均衡

一、Nginx安装完毕后，修改配置文件conf/nginx.conf

http {

    include       mime.types;

    default_type  application/octet-stream;

    sendfile        on;

    keepalive_timeout  65;

    upstream web_server {

       #ip_hash;

       server 192.168.134.135:8080 max_fails=3  fail_timeout=30s;

       server 192.168.134.136:8080 max_fails=3  fail_timeout=30s;

    }

server {

        listen       80;

        server_name  localhost;

        location ~ .*\.jsp$ {

             proxy_pass   http://web_server;

             proxy_redirect default ;

        }

        location / {

            root   html;

            index  index.html index.htm;

        }

   }

}

二、重启Nginx

3.4
测试

3.4.1 测试页面

在两个Tomcat的webapps目录下创建test目录，在test目录下，创建test_session.jsp文件，文件内容如下：

<%@ page contentType="text/html; charset=GBK" %>

<%@ page import="java.util.*" %>

<html><head><title>Cluster App Test</title></head>

<body>

   Server Info:

   <%

out.println(request.getLocalAddr() + ":" + request.getLocalPort());

%>

<br><br>

    <% 

out.println("<br> ID " + session.getId()+"<br>"); 

String dataName = request.getParameter("dataName");

if (dataName != null && dataName.length() > 0) { 

String dataValue = request.getParameter("dataValue") ;

session.setAttribute(dataName, dataValue); 

} 

out.print("<b>Session list</b> <br>"); 

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="test_session.jsp" method="POST">

          name:<input type=text size=20 name="dataName"> <br>

          key:<input type=text size=20 name="dataValue"> <br>

          <input type=submit>

    </form>

  </body>

</html>

3.4.2 测试步骤

先启动memcached

然后启动niginx和两个Tomcat。

打开浏览器，输入http:// 192.168.134.135/test/test_session.jsp

填写name和key，提交后看以看到

aaarticlea/png;base64,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" alt="" />

关闭192.168.134.135上的Tomcat，再刷新，如果ID的值相同且Session
List中值也存在，说明Session是被共享的。

码农公寓

第1章 概述