After upgrading WCC from 12.0 to 12.0.1, WCC does not start anymore

Products

• CA Workload Automation AE

Issue/Introduction

Getting the following error repeatedly in the CA-wcc.log

INFO   | jvm 1    | 2021/01/13 10:06:09 |        8 | @tomcat-resource <WrapperStartStopAppMain> []  WARN #ClusterProviderDAO                 # Lets give 5 seconds for <default-collector> to get added, instancename : <WCC-Real-Hostname>
INFO   | jvm 1    | 2021/01/13 10:06:14 |       13 | @tomcat-resource <WrapperStartStopAppMain> []  WARN #ClusterProviderDAO                 # Wait complete, check for <default-collector> node existance
INFO   | jvm 1    | 2021/01/13 10:06:14 |       13 | @tomcat-resource <WrapperStartStopAppMain> []  WARN #ClusterProviderDAO                 # Check whether <default-collector> node exists - node <WCC-Real-Hostname>, clusterport 7004
INFO   | jvm 1    | 2021/01/13 10:06:14 |       13 | @tomcat-resource <WrapperStartStopAppMain> []  WARN #ClusterProviderDAO                 # is collector node exists with host <WCC-Real-Hostname>and port 7004? false
I

Environment

Release : 12

Component : CA Workload Automation AE (AutoSys)

Cause

WCC's /opt/CA/WorkloadAutomationAE/wcc/data/config/application/config/resources/connection.properties has a HA node value which does not correspond to the entries in the WCC database table cfg_ha_instance.nodename

It has to match the exact value 

Resolution

1) Backup /opt/CA/WorkloadAutomationAE/wcc/data/config/application/config/resources/connection.properties file first 

2) Edit the connection.properties and set the  ha.node   to the same exact value as the associated cfg_ha_instance.nodename  value

3) Restart WCC