One of the biggest advantage of vRealize Orchestrator is that, within a matter of minutes, you are able to configure an active-active cluster.
It is come to my attention that the following recommendation is not well familiar to the orchestrator guys, so i thought it can be a good idea to post about it.
In an active-active configuration, If you want to make changes on the Orchestrator content, for example to edit a workflow or an action, you must stop all Orchestrator server nodes except one and cancel all running tasks that refer to the content you want to change. You can then make changes to the only server node that is active, and restart the other Orchestrator server instances in the cluster.
This is also documented in the official documentation: