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Parallel Deployment with Tomcat 7
Monday, 13 May 2013
Tomcat 7 introduces the ability to perform parallel deployment. This means that multiple versions of a war file can exist on single Tomcat server at the same time. More importantly, those multiple versions of the war file can be used simultaneously by different users.
The idea is that this allows a new version of a war file to be deployed to a Tomcat server, without requiring any downtime. This (in theory) offers a simpler process than the more conventional approach involving multiple Tomcat servers and load balancers.
This blog post demonstrates this feature and also notes some limitations.
Tomcat Session Replication with BackupManager
Sunday, 22 September 2013
My current project is using BackupManager for session replication in Tomcat and I wanted to understand this a bit more. I set up a quick example to try it out on and thought that my experiences might be of some use to other people who are using this approach (or are considering it).