负载均衡sesion共享

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nginx+tomcat+memcached负载均衡session

我使用的版本

tomcat-7.0.42
nginx-1.9.2
memcached-win32-1.4.4-14

安装方法这里就不再说明一大堆

注意：这里需要注意的是tomcat里需要memcached jar包
链接：http://pan.baidu.com/s/1pLRICUB
密码：u72i
下载完把jar直接放到tomcat的lib文件下

第一步tomcat配置

⑴ conf/context.xml中在<Context></Context> 节点中加入以下配置每个tomcat1，tomcat2各配置一个

<Manager  className="de.javakaffee.web.msm.MemcachedBackupSessionManager"  memcachedNodes="n1:localhost:11211"  sticky="false"  sessionBackupAsync="false"  lockingMode="uriPattern:/path1|/path2"  requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$"  transcoderFactoryClass="de.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory"/>

⑵ conf/server.xml 加入 jvmRoute=”tomcat7-1”
依次类推tomcat2，jvmRoute=”tomcat7-2”
<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat7-1">

第二步nginx配置

这是我的nginx配置，在upstream 里配置了俩个服务

#user  nobody;worker_processes  auto;worker_rlimit_nofile 100000; #error_log  logs/error.log;#error_log  logs/error.log  notice;#error_log  logs/error.log  info;#pid        logs/nginx.pid;events {    worker_connections 204800;     multi_accept on; }http {    include       mime.types;    default_type  application/octet-stream;    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '    #                  '$status $body_bytes_sent "$http_referer" '    #                  '"$http_user_agent" "$http_x_forwarded_for"';    #access_log  logs/access.log  main;    sendfile        on;    #tcp_nopush     on;    #keepalive_timeout  0;    keepalive_timeout  10;    #gzip  on;    server_names_hash_max_size 512;    server_names_hash_bucket_size 128;upstream localhost {    server 192.168.23.24:8080 weight=1 fail_timeout=5s;    server 192.168.23.24:8012 weight=5 fail_timeout=5s;}server {        listen       80;        server_name  192.168.23.24;             location / {                   root   html;                   index  index.html index.htm;                   proxy_pass   http://localhost;                  proxy_redirect    off;                   proxy_set_header   Host $host;                   proxy_set_header   X-Real-IP $remote_addr;                   proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;                    client_max_body_size   10m;                   client_body_buffer_size   128k;                   proxy_connect_timeout 10;                  proxy_send_timeout   90;                   proxy_read_timeout   90;                   proxy_buffer_size   4k;                   proxy_buffers   4 32k;                   proxy_busy_buffers_size   64k;                   proxy_temp_file_write_size  64k;                       }       }     }

第三测试页面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <base href="<%=basePath%>">    <title>session测试页面</title>    <meta http-equiv="pragma" content="no-cache">    <meta http-equiv="cache-control" content="no-cache">    <meta http-equiv="expires" content="0">        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">    <meta http-equiv="description" content="This is my page">  </head> <body>    SessionID:<%=session.getId()%>    <BR>      SessionIP:<%=request.getServerName()%>    <BR>      SessionPort:<%=request.getServerPort()%>    <BR></body> </html>

第一次写不是很详细见谅^_^

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