Chapter 13. Rolling Upgrades in JBoss Data Grid

13.1. About Rolling Upgrades

In JBoss Data Grid, rolling upgrades permit a cluster to be upgraded from one version to a new version without experiencing any downtime. This allows nodes to be upgraded without the need to restart the the application or risk losing data.
In JBoss Data Grid 6.1, rolling upgrades can only be performed in Remote Client-Server mode using Hot Rod.