Nginx +Tomcat集群架构介绍
[root@lb 01 conf.d]#cat proxy_zrlog.oldxu.com.conf
upstream zrlog {
server 172.16.1.7:8080;
server 172.16.1.8:8080;
}
server {
listen 80;
server_name zrlog.oldxu.com;
location / {
proxy_pass http://zrlog;
include proxy_params;
}
}
Nginx + Tomcat 集群会话共享 redis cluster
[root@web 01 conf]# vim /soft/tomcat/conf/server.xml
<!--session站点-->
<Host name="session.oldxu.com" appBase="/code/session"
unpackWARs="true" autoDeploy="true">
</Host>
2.准备index.jspw文件（为了区分需要调整输出的web0、
web02）
[root@web 01 conf]#cat /code/session/ROOT/index.jsp
<body>
<%
//HttpSession session=request.getSession(true);
System.out.printlh(session.getCreationTime());
out.printlh("<br> web 01 SESSION ID:" +session.getld()+"<br>");
out.printlh(Session created time is :"+session.getld()+ "<br>");
</body>
3.下载TomcatClusterRedisSessionManager（所有web集群都需要操作）
GitHub地址 http：//github.com/ran-jit/tomcat-cluster-redis-session-manager
[root@tomcat ~]# wget https://github.com/ran-jit/tomcat-cluster-redis-session-manager/releases/download/3.0.3/tomcat-cluster-redis-session-manager.zip
[root@tomcat ~]# unzip tomcat-cluster-redis-session-manager.zip
[root@web01 ~]# cd tomcat-cluster-redis-session-manager
1.拷贝jar包
[root@web01 tomcat-cluster-redis-session-manager]# cp lib/* /soft/tomcat/lib/
2.拷贝tomcat连接redis配置文件
[root@web01 tomcat-cluster-redis-session-manager]# cp conf/redis-data-cache.properties /soft/tomcat/conf/
3.修改redis-data-cache.properties
[root@web01 ~]# vim /soft/tomcat/conf/redis-data-cache.properties
...
redis.hosts=172.16.1.51:6379
redis.password=123456 #有密码就写密码,没有不要写
...
4.添加如下两行至tomcat/conf/context.xml
[root@web01 ~]# vim /soft/tomcat/conf/context.xml
<Context>
.....
<Valve className="tomcat.request.session.redis.SessionHandlerValve" />
<Manager className="tomcat.request.session.redis.SessionManager" />
....
</Context>
5.修改tomcat/conf/web.xml 配置文件session的超时时间 ,单位是分钟
<session-config>
<session-timeout>60</session-timeout> #根据情况调整
</session-config>
.安装redis，当然也可以自行搭建redis集群，anyway
[root@redis ~]# yum install redis -y
[root@redis ~]# cat /etc/redis.conf
...
bind 172.16.1.51 127.0.0.1
requirepass 123456 #如果不需要密码,则不要配置
...
[root@redis ~]# systemctl start redis
[root@redis ~]# systemctl enable redis
7.重启多台机器的Tomcat
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