Tomcat 8 Session Replication with Redis

Question

Can session replication be implemented on Tomcat 8 with redis? I am not able to find redis session manager jar for tomcat 8!

Answer 1

There is a ready solution offered by Redisson framework - Redis based In-Memory Data Grid.

Two steps how to use it:

1. Add RedissonSessionManager into context.xml

    <Manager className="org.redisson.tomcat.RedissonSessionManager"
         configPath="${catalina.base}/redisson.yaml" />
   

configPath - path to Redisson JSON or YAML config. See configuration wiki page for more details.

2. Copy both jars into TOMCAT_BASE/lib directory: redisson-all-3.x.x.jar and redisson-tomcat-9-3.x.x.jar

Boost Tomcat Session Manager performance up to 4x times with Redisson PRO version.