This document records the process of Nginx+redis+tomcat implementing session sharing.
Nginx Installation: http://blog.csdn.net/grhlove123/article/details/47834673
Redis Installation: http://blog.csdn.net/grhlove123/article/details/47783471
Prepare two Tomcat and modify the appropriate port 8080,9090
Modify nginx.conf Plus:
Upstream Backend {
Server 10.10.49.23:8080 Max_fails=1 fail_timeout=10s;
Server 10.10.49.15:8081 Max_fails=1 fail_timeout=10s;
}
Modify the location of the nginx.conf into
Location/{
root HTML;
Index index.html index.htm;
Proxy_pass Http://backend;
}
Start Nginx.
Download Tomcat-redis-session-manager the corresponding jar package, there are three main:
wget https://github.com/downloads/jcoleman/tomcat-redis-session-manager/ Tomcat-redis-session-manager-1.2-tomcat-7-java-7.jar
wget Http://central.maven.org/maven2/redis/clients/jedis/2.5.2/jedis-2.5.2.jar
wget Http://central.maven.org/maven2/org/apache/commons/commons-pool2/2.0/commons-pool2-2.0.jar
Copy to $tomcat_home/lib when download is complete
Modify the Context.xml of two tomcat:
<Context>
<!--Default set of monitored resources--
<WatchedResource>WEB-INF/web.xml</WatchedResource>
<!--uncomment this to disable session persistence across Tomcat restarts-
<!--
<manager pathname= ""/>
-
<!--uncomment this to enable Comet connection tacking (provides events
On session expiration as well as WebApp lifecycle)--
<!--
<valve classname= "Org.apache.catalina.valves.CometConnectionManagerValve"/>
-
<valve classname= "Com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve"/>
<manager classname= "Com.orangefunction.tomcat.redissessions.RedisSessionManager"
Host= "10.10.49.20"
Port= "6379"
database= "0"
Maxinactiveinterval= "/>"
</Context>
Put a index.jsp in tomcat/webapps/test.
<%@ page language= "java"%>
<body>
<table align= "centre" border= "1" >
<tr>
<td>session id</td>
<td><%= Session.getid ()%></td>
</tr>
<tr>
<td>created on</td>
<td><%= session.getcreationtime ()%></td>
</tr>
</table>
</body>
Sessionid:<%=session.getid ()%>
<br>
Sessionip:<%=request.getservername ()%>
<br>
Sessionport:<%=request.getserverport ()%>
<%
To differentiate, the second one can be 222.
Out.println ("This is Tomcat Server 1111");
%>
Started Tomcat, found an exception: Com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve class could not find
Open three jar packages respectively, do not have this class, the solution can be consulted:
http://blog.csdn.net/qinxcb/article/details/42041023
by visiting http://10.10.49.20/test/
Refresh:
You can see that although server has changed from 1111 to 2222, the session creation time has not changed, which completes the session sharing.
CentOS 6.6 builds Nginx1.80+redis-3.0.2.tar + tomcat8 for load balancing
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