通过 Memcached 解决多台tomcat session同步问题

准备工作

Nginx 负载均衡已配置
Tomcat 已开启多个容器
Tomcat 8
官方文档: https://github.com/magro/memcached-session-manager/wiki/SetupAndConfiguration
参考资料: https://www.cnblogs.com/jsonhc/p/7344902.html
下载所需jar包, 每个tomcat版本对应的包不同
wget http://repo1.maven.org/maven2/de/javakaffee/msm/memcached-session-manager/2.1.1/memcached-session-manager-2.1.1.jar
wget http://repo1.maven.org/maven2/de/javakaffee/msm/memcached-session-manager-tc8/2.1.1/memcached-session-manager-tc8-2.1.1.jar
wget http://repo1.maven.org/maven2/net/spy/spymemcached/2.11.1/spymemcached-2.11.1.jar
如果仅仅只是用java来做序列化器只需上面这三个包就ok
下面两个包,配置后一直报错,未测试通过
wget http://repo1.maven.org/maven2/de/javakaffee/msm/msm-javolution-serializer/1.8.3/msm-javolution-serializer-1.8.3.jar
wget http://repo1.maven.org/maven2/de/javakaffee/msm/msm-javolution-serializer/2.1.1/msm-javolution-serializer-2.1.1.jar
下载完成后放入tomcat/lib目录中

修改两个tomcat配置文件

vim {tomcat}/conf/context.xml

<Context>
    <!-- web application will be reloaded.                                   -->
    <WatchedResource>WEB-INF/web.xml</WatchedResource>
    <WatchedResource>${catalina.base}/conf/web.xml</WatchedResource>

    <!-- Uncomment this to disable session persistence across Tomcat restarts -->
    <!--
    <Manager pathname="" />
    -->
    <Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"
    memcachedNodes="n1:127.0.0.1:11211,n2:127.0.0.1:22122"
    failoverNodes="n1"
    requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$"
    />
</Context>

准备工作

下载所需jar包, 每个tomcat版本对应的包不同

修改两个tomcat配置文件