We are trying to install PAM in 2 nodes and successfully installed in Node1 but getting the below error while installing in Node2 when configuring runtime DB.
"The Runtime Database is being used by another orchestrator"
IT Process Automation 4.x
The error message you are getting seems to indicate that you either are
For a separate stand-alone Orchestrator it cannot share the runtime database with another Orchestrator. But, if you install them as a cluster you should not encounter that problem. However you have to configure the primary Domain Orchestrator to use a Load Balancer first.
Here's where you can read more about installing a cluster node: CA Process Automation - Graphical User Interface Installation