Not able to discover server with UMP

Document ID : KB000097659
Last Modified Date : 24/05/2018
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Issue:
I am trying to install the agent on a server via UIM. Try several things without success. I also try to installed the agent directly on the server and point the agent to UIM servers. It was appearing in UIM GUI but on in UMP web interface.

The discovery is from a secondary HUB.
Environment:
UIM 8.51
Cause:
In the discovery_agent.log, the following message.
The probe discovery_agent cannot publish discovery results because an attach or post queue for the subject probe_discovery on the hub /*/*/*/hub is not configured.

Check the list of queues in the secondary hub and notice the probeDiscovery was missing.
check the list of queues in the primary hub and found it's also missing the queue for get.
Resolution:
Created a new queue on the secondary hub with the following settings.
Name - probeDiscoveryFrom<hostname of secondary hub>
Type - attach
Subject - probe_discovery

Created a new queue on the primary hub with the following settings.
Name - GetDiscoveryFor<hostname of secondary hub>
Type - get
Address - value for the secondary hub
Queue - probeDiscoveryFrom<hostname of secondary hub>

Deactivate and reactive the discovery_agent