keepalived + nginx + tomcat+memcache+负载均衡时session共享

第一步:

     在tomcat中memcached的jar包

第二步:

     修改tomcat/conf/context.xml 

     添加:

<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager" 

memcachedNodes="n1:192.168.159.31:11211"  #这个IP为memcached的服务器的IP

    sticky="false" 

    lockingMode="auto"

    sessionBackupAsync="false"

requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$"

    sessionBackupTimeout="1000" transcoderFactoryClass="de.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory" 

/>

以上二步就可以了