https://docs.jelastic.com/replication-memcached/
1. Jar files attached need adding in both server libs
2. context xml in all servers needs below adding (NOTE CHAGE THE host TO THE IP OF THE MEMCACHE INSTANCE)
<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"
memcachedNodes="n1:10.10.123.116:11211"
requestUriIgnorePattern=".*\.(png|gif|jpg|css|js)$"
sessionBackupAsync="false"
sessionBackupTimeout="100"
copyCollectionsForSerialization="false"/>
3. haproxy config needs below after server webserver entries in backend
#---------test additions for clustering TT
stick-table type string len 52 size 5M expire 30m
stick store-response set-cookie(JSESSIONID)
stick on cookie(JSESSIONID)
cookie JSESSIONID prefix nocache