UIM What is the queue with Subject _$HUBALL for?

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Article ID: 209097

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Updated On:

Products

CA Unified Infrastructure Management On-Premise (Nimsoft / UIM)

Issue/Introduction

Each of the hubs have a temp queue t_x with Subject/Queue = _$HUBALL, ID = discovery_server, & Adress = Primary Hub IP address, what is it for. 

Environment

Release : 20.3

Component : UIM - DISCOVERY_SERVER

Resolution

This queue is used to communicate robot changes to discovery_server. Things like removing, adding, or moving a robot, stopping or starting the service and potentially communication failures making is seem like it is stopped. Also changes to probes such as activating or deactivating, adding or removing will result in messages getting created in the queue.