CA Process Automation Manager in a cluster is failing. Version: 04.3.03

Products

• CA Process Automation Base

Issue/Introduction

After windows patching our PAM server failed to come up correctly. We have two PAM server in a cluster and one is working and processing workflows but the other is not. The database connections to the PAM DB look good. We have restarted the windows service and rebooted the server several times. I will attach the PAM server logs.

Environment

Release : 4.3

Component : Process Automation

Resolution

Reported Issue: When we are starting node2, it's not joining the cluster after the windows patch is applied.

RCA: The first started node in the cluster is called the master node and we deploy a few services only in the master node. Somehow, the 2nd node is not able to look up the service and not able to join the cluster.  

Node 2 is not able to resolve node1 through the short name (without a fully qualified domain name)

Fix: To fix the connectivity issue, we mapped the hostname to a fully qualified domain in the host file.