Railo session storage using DynamoDB on AWS

Question

We are hosting Tomcat / Railo on AWS Elastic Beanstalk and it appears that database session storage is the best option for coping with the multiple servers that a request may be passed between as a consequence of load-balancing.

Amazon have some dedicated modules for doing this in PHP, and I would like to know if anything similar exists for Railo?

Incidentally, I am aware that enabling "sticky sessions" is another option, but it seems to me that sessions will be lost if machines are taken off-line (i.e. spun-down by the load balancer), which would be annoying for the user.

Answer 1

I'm not aware of a DynamoDB cache provider, however Railo can store sessions in any cache or datasource that it currently supports (see the docs) if you enable it for storage and then specify it in the Application.cfc

In the railo web admin create a datasource to use for storing sessions, half way down the page tick "Storage: Allow to use this datasource as client/session storage."

In you Application.cfc add the following

this.sessionStorage = "my_sessions_dsn";
this.sessionCluster = true;