How to Migrate a Simple WildFly Cluster to Payara Server 5 Deployment Group

Migrating applications from WildFly to Payara Server can be a simple and straightforward process because both servers rely on the Jakarta EE (Java EE) specifications. However, there are differences in many areas like clustering, which is not covered by any specification and is, in fact, very different in both servers.

This guide will explain the differences between clustering in WildFly and Payara Server, how to plan migration of an existing WildFly cluster to Payara Server, and will also show you how to migrate an example cluster step-by-step. In this guide:

• Comparison of Clustering in WildFly and Payara Server
• High Availability Support
• A Simple WildFly Cluster
• Types of Nodes in Payara Server
• Set Up a Payara Server Cluster
• High Availability for Deployment Group
• Load Balancing HTTP Requests with Shared HTTP Session
• Where to get Migration Help