The related stacktrace can be seen in the nnm-trace.log file, if the discovery module is set for FINEST.
2020-02-12 12:47:38.618 FINE [com.hp.ov.nms.disco.analyzer.nc.NodeNameChooser] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Choosing name for node 11.1.1.1/<NodeFQDN>
2020-02-12 12:47:38.618 FINER [com.hp.ov.nms.disco.analyzer.nc.NodeNameChooser] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Trying 1st naming algorithm: Short DNS Name
2020-02-12 12:47:38.618 FINER [com.hp.ov.nms.disco.analyzer.nc.NodeNameChooser] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Invalid hostname 10.7.7.3
2020-02-12 12:47:38.618 FINER [com.hp.ov.nms.disco.analyzer.nc.NodeNameChooser] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Trying 2nd naming algorithm: Short sysName
2020-02-12 12:47:38.619 FINER [com.hp.ov.nms.disco.analyzer.nc.NodeNameChooser] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Preferred Display Name: <NodeFQDN>
2020-02-12 12:47:38.639 FINEST [com.hp.ov.nms.disco.analyzer.nc.ProfileController] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Management address[before/after profile]:[11.1.1.1/11.1.1.1]
2020-02-12 12:47:38.639 FINEST [com.hp.ov.nms.disco.analyzer.nc.ProfileController] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Get Profilers for Node: <NodeFQDN>
2020-02-12 12:47:38.640 FINER [com.hp.ov.nms.disco.analyzer.nc.SnmpProfiler] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Agent version: 2
2020-02-12 12:47:38.640 FINER [com.hp.ov.nms.disco.analyzer.nc.ProfileController] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Done to profile node uuid=<NodeUUID>, address=11.1.1.1, name=11.1.1.1, callback=BasicNodeEntryPoint, managementAddressHint=null
2020-02-12 12:47:38.640 FINE [com.hp.ov.nms.disco.analyzer.nc.CiscoAciProfiler] (Thread-28 (group:HornetQ-client-global-threads-767529744)) CiscoAciProfiler is profiling node: <NodeFQDN>
2020-02-12 12:47:38.640 FINER [com.hp.ov.nms.disco.analyzer.nc.RestProfiler] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Profiling Node: 11.1.1.1 with UUID: <NodeUUID>
2020-02-12 12:47:38.640 FINEST [com.hp.ov.nms.disco.analyzer.nc.RestProfiler] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Create WebAgentConfigEntry for Node: <NodeFQDN>
2020-02-12 12:47:38.643 FINEST [com.hp.ov.nms.disco.analyzer.nc.RestProfiler] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Create WebAgentConfigEntry for NodeInfo: <NodeFQDN> Hostname: 11.1.1.1MgmtIP: /11.1.1.1
2020-02-12 12:47:38.645 FINE [com.hp.ov.nms.disco.target.resolver.DiscoSoapServiceTargetResolver] (Thread-28 (group:HornetQ-client-global-threads-767529744)) Cannot resolve SoapTargetConfig b/c WebAgentConfig does not specify agent's nodePid, hostname or name/ip