We have a setup in DEV environment where two weblogic instances are set as one cluster on a single machine. We have 4 clusters on that machine.
The issue is Set-2 is FAILING.
The EXCEPTION: The request to start the server AppServer1B of domain XXXDomain failed because the node manager did not hear from the managed server in the configured timeout period. Despite this, if the managed server has not failed, it will come up and the node manager will start monitoring it. To adjust this timeout so that the task does not fail prematurely, please refer to the node manager property ScavangerDelaySeconds (Default value : 180 seconds. Current value : 180 seconds)
On Linux box console, $ more AppServer1B_error.log Exception in thread "main" java.lang.NoClassDefFoundError: weblogic/Server
Any other information is required can be provided.