Hi Jon, On Mon, 2010-02-15 at 11:55 -0600, Jon Brisbin wrote: > I'm trying to figure out today how I can implement a Valve or something that > can store a session to a backend DB and reload that session on another Tomcat > instance similar to how the PersistentManager loads user's session after a > restart. > > Would a Valve based on PersistentValve allow me to implement a cluster-like > solution such that a user login causes a write to a central database and a > load balanced request to another server would see that user without forcing > another login? You might have a look at the http://code.google.com/p/memcached-session-manager/ which is a session failover solution storing sessions in memcached.
When the project was created I only thought of applications using sticky sessions but it should also work with non-sticky sessions if sessions are stored in memcached synchronously (sessionBackupAsync needs to be set to false, see [1]). The memcached-session-manager basically is a session manager implemention, the most interesting part is the MemcachedBackupSessionManager ([2]) if you want to have a look at the code. Cheers, Martin [1] http://code.google.com/p/memcached-session-manager/wiki/SetupAndConfiguration [2] http://github.com/magro/memcached-session-manager/blob/master/core/src/main/java/de/javakaffee/web/msm/MemcachedBackupSessionManager.java > > Jon Brisbin > Portal Webmaster > NPC International, Inc. > > > > On Feb 15, 2010, at 11:05 AM, Simone Tripodi wrote: > > > Hi all guys and very nice to meet the Tomcat community, > > I've a web-application that needs to be replicated in more than one > > Tomcat, and since it is HttpSession based, I need to enable the > > session replication. > > Even if I work with very good sysadmins that know how to do it, I'm > > curious and would like to know if I could replace the HttpSession > > implementation with a my own one, I'd like to integrate Hazelcast[1] > > for data synchronization. > > Thanks in advance, every suggestion will be very appreciated. > > Simo > > > > [1] http://www.hazelcast.com/ > > > > http://people.apache.org/~simonetripodi/ > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > --
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