Symptoms
VMware Aria Operations reporting alarm belowThe Critical symptom Management Service runtime state is not running has been observed on nsx-message-bus (Self)Console/SSH to the NSX manager node, run command "get service nsx-message-bus" which shows this service is stopped
Impact / Risks
There is no operational impact because this nsx-message-bus service is no longer used from NSX-T Data Center 3.0.
Resolution
The nsx-message-bus service has been deprecated starting from NSX-T Data Center 3.0.Please refer to doc below
nsx-message-bus: This service is not used in NSX-T Data Center 3.0.
https://docs.vmware.com/en/VMware-NSX-T-Data-Center/3.0/installation/GUID-FA0ABBBD-34D8-4DA9-882D-085E7E0D269E.html