Release Notes - WildFly 11
Posted by on 29 January 2018 04:08 PM
Overview - WildFly 11
This Release Note covers all point releases for WildFly 11 that are offered by eApps. Upgrade instructions are included.
WildFly is the continuation of the JBoss Application Server (JBoss AS) project. It is essentially JBoss AS 8, but the project was renamed by Red Hat in order to differentiate the open source JBoss AS project from the commercial Red Hat JBoss Middleware project.
WildFly 11 and above is only available for Virtual Servers running CentOS 6 or CentOS 7. If you are on a CentOS 5 (Webmin) or CentOS 4 (VPS) plan and need WildFly, you will need to migrate to a CentOS 6 or CentOS 7 plan. Contact eApps Sales for more information.
WildFly 11 and above requires Java SE 8. It will not run with Java SE 6 or Java SE 7.
eApps recommends, as a best practice, to maintain a staging server where you can test software upgrades before moving them into production. This approach will allow you to minimize the risk of data loss and downtime of your production service when performing software upgrades. If necessary, you can rebuild your staging Virtual Server on demand so that you have a fresh installation to test on. If you need more information about setting up a Virtual Server for staging or testing, please contact eApps Sales.
IMPORTANT: WildFly 11 has an extensive list of new features and changes. See the Official WildFly 11 Release Notes for a list of changes that may cause issues when upgrading: WildFly 11 Release Notes. Please read this document carefully to understand all the changes in WildFly 11. Upgrading to this version may significantly impact the operation of your database and applications. All WildFly 10 documentation is located here: WildFly 11 Documentation
Highlighted Features and Fixes in WildFly 11.0.0
The official Release Notes for WildFly 11.0.0 are available here
How to Upgrade
It is your responsibility to ensure that your application will work on the newer version of WildFly. There may be incompatibilities that will affect how your application works. Please make sure that you have read the official Release Notes and Changelog, and have done any necessary testing before upgrading a production application.
You should also make a backup of your application, your configuration, and any tunings or changes you have made. If you do not have current backups and something goes wrong during the upgrade process, you could have data loss.
WildFly 9 or WildFly 10 to WildFly 11
There is no direct upgrade path from WildFly 9 or WildFly 10 to WildFly 11 To upgrade from WildFly 9 or WildFly 10 you will need to make a backup of your existing application, database, configuration, and any customizations and tunings, and then uninstall WildFly 9 or WildFly 10 and install WildFly 11. Once WildFly 11 is installed, you will need to redeploy your application and all configurations and databases.
It is highly recommended that you provision a test Virtual Server, install WildFly 11 and your database server, and then copy your existing application, configurations, and database to the test VS. This will allow you to fully test that your existing application will work with WildFly 11 before moving it into production. Once you have completed your testing you can then upgrade your production Virtual Server, and then cancel the test VS. Instructions on how to install WildFly 11 are available here - WildFly Installation
To upgrade from WildFly 9 or WildFly 10 to WildFly 11, you will need to do the following:
To uninstall WildFly 9 or 10, log in as root to the ISPmanager Control Panel.
Wait a few minutes, and then click on the link to Applications or Features again to see if the uninstall process has completed. You may have to click several times before you see the application removed.
Once the older version of WildFly 9 or 10 has been removed, install WildFly 11.
Wait a few minutes, then click on the link to Applications or Features again to see if the install process has completed. You may have to click several times before you see the application installed.
Once the update completes, you will need to redeploy and restart your applications, customizations, and databases. Deploying your applications on WildFly is different than deploying on JBoss, see the relevant User Guide for more information: WildFly Deployment in Standalone Mode