Product versions can be updated without having to stop the entire cluster. A rolling upgrade of the new product version is done on each node in a cluster one at a time.
These steps are required to upgrade the product version:
Install new product release.
Rebuild the application archive using the new product release.
For each node in the cluster perform these steps using the system management tools shipped with the updated product version:
Stop the node as described in the section called “Stopping”.
Remove the node as described in the section called “Removing”.
Re-install the node with the rebuilt application archive as described in the section called “Application installation”.
Start the re-installed node as described in the section called “Starting”.
After these steps are completed, the node has rejoined the cluster with the updated product version.