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tomcat session会话保持实验-之Nginx+tomcat+memcached
tomcat session会话保持实验-之Nginx+tomcat+memcached
实验要求
1、nginx+tomcat 负载均衡
2、memcached 会话保持
实验拓扑
ip网络规划
Nginxnode2:172.16.76.20
tomcatAnode3:172.16.76.30 memcached
tomcatBnode4:172.16.76.40 memcached
基础配置
node2
[root@node2~]# yum install nginx –y
node3
[root@node3~]# yum install tomcat –y [root@node3~]# cd /var/lib/tomcat/webapps/ [root@node3 webapps]# mkdir -pv test/{claess,lib,WEB-INF [root@node3 webapps]#vim test/index.jsp <%@ page language="java" %> <html> <head><title>TomcatA</title></head> <body> <h1><fontcolor="red">TomcatA.linuxinfo.top</font></h1> <tablealign="centre" border="1"> <tr> <td>SessionID</td> <%session.setAttribute("linuxinfo.top","linuxinfo.top");%> <td><%=session.getId() %></td> </tr> <tr> <td>Createdon</td> <td><%=session.getCreationTime() %></td> </tr> </table> </body> </html> [root@node3 ~]# systemctl restart tomcat
node4
[root@node4~]# yum install tomcat –y [root@node4~]# cd /var/lib/tomcat/webapps/ [root@node4 webapps]# mkdir -pv test/{claess,lib,WEB-INF [root@node4 webapps]#vim test/index.jsp <%@ page language="java" %> <html> <head><title>TomcatB</title></head> <body> <h1><font color="blue">TomcatA.linuxinfo.top</font></h1> <tablealign="centre" border="1"> <tr> <td>SessionID</td> <%session.setAttribute("linuxinfo.top","linuxinfo.top");%> <td><%=session.getId() %></td> </tr> <tr> <td>Createdon</td> <td><%=session.getCreationTime() %></td> </tr> </table> </body> </html> [root@node4 ~]# systemctl restart tomcat
Nginx配置
root@node2~]# cat /etc/nginx/nginx.conf
user nginx; worker_processes auto; error_log /var/log/nginx/error.log; pid /run/nginx.pid; include /usr/share/nginx/modules/*.conf; events { worker_connections 1024; } http { log_format main ‘$remote_addr - $remote_user [$time_local] "$request" ‘ ‘$status$body_bytes_sent "$http_referer" ‘ ‘"$http_user_agent" "$http_x_forwarded_for"‘; upstream tomcatser { #服务器组配置负载均衡 server172.16.76.30:8080; server172.16.76.40:8080; # ip_hash } access_log /var/log/nginx/access.log main; sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 65; types_hash_max_size 2048; include /etc/nginx/mime.types; default_type application/octet-stream; include/etc/nginx/conf.d/*.conf; server { listen 80default_server; listen [::]:80 default_server; server_name _; root /usr/share/nginx/html; # Load configurationfiles for the default server block. include/etc/nginx/default.d/*.conf; #location 代理至后端服务器组;负载均衡 location / { proxy_pass http://tomcatser; location ~* (\.jsp|do)${ proxy_passhttp://tomcatser; } } error_page 404 /404.html; location =/40x.html { } error_page 500 502 503504 /50x.html; location =/50x.html { } } [root@node2 ~]# systemctlrestart nginx
memcached
下载如下jar文件至各tomcat节点的tomcat安装目录下的lib目录中,其中的${version}要换成你所需要的版本号,tc${6,7,8}要换成与tomcat版本相同的版本号。
memcached-session-manager-${version}.jar
memcached-session-manager-tc${6,7,8}-${version}.jar
spymemcached-${version}.jar
msm-javolution-serializer-${version}.jar
javolution-${version}.jar
本实验所用jar包已上传(仅供实验版本),各位可以去下面链接下载:
http://down.51cto.com/3363989
或者到官方下载(这个应该被。。。)
memcached-session-manager项目地址,https://code.google.com/archive/p/memcached-session-manager/downloads
本实验环境版本如下:
[root@node3~]# tomcat version
Server version: Apache Tomcat/7.0.69
Server built: Nov 6 201601:55:51 UTC
Server number: 7.0.69.0
OS Name: Linux
OS Version: 3.10.0-327.el7.x86_64
Architecture: amd64
JVM Version: 1.8.0_121-b13
JVM Vendor: OracleCorporation
安装memcached
[root@node3~]# yum install memcached –y
[root@node4~]# yum install memcached -y
tomcat
ndoe3
1、[root@node3 ~]# vim /etc/tomcat/server.xml
分别在两个tomcat上的某host上定义一个用于测试的context容器,并在其中创建一个会话管理器,如下所示:
<Context path="/test"docBase="/usr/local/tomcat/webapps/test"reloadable="true">
<ManagerclassName="de.javakaffee.web.msm.MemcachedBackupSessionManager"
memcachedNodes="n1:172.16.100.9:11211,n2:172.16.100.10:11211"
failoverNodes="n1"
requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$" transcoderFactoryClass="de.javakaffee.web.msm.serializer.javolution.JavolutionTranscoderFactory"/>
</Context>
2、 在<Engine name="Catalina"defaultHost="localhost"> 中添加jvmRoute="TomcatA"即
<Enginename="Catalina" defaultHost="localhost"jvmRoute="TomcatA">
#tomcatB主机 则将此修改为tomcatB
node4:
1、 将node3 tomcat配置文件server.xml拷贝一份至本机;
[root@node4~]# cd /etc/tomcat/
[root@node4 tomcat]# scp172.16.76.30:/etc/tomcat/server.xml .
2、注:修改 <Engine> 中jvmRoute=TomcatB;
重启所有服务
[root@node2~]# systemctl restart nginx
[root@node3~]# systemctl restart tomcat
[root@node3~]# systemctl restart memcached
[root@node4~]# systemctl restart tomcat
[root@node4~]# systemctl restart memcached
测试
至此实验完成;访问172.16.76.20/test/实现nginx负载均衡同时利用memcached实现保持会话;
本文出自 “秋季” 博客,请务必保留此出处http://lxlxlx.blog.51cto.com/3363989/1897850
tomcat session会话保持实验-之Nginx+tomcat+memcached