While setting up some new nodes to be monitored via SNMPv3 manually I noticed strange behavior with the credentials assigned to the node after setup. I discovered this behavior with a report that utilizes a SQL query created by mahmoud.fathy to show the nodes a credential is assigned to: List nodes with their assigned SNMPv3 credentials - Forum - The Orion Platform - THWACK (solarwinds.com)
We have a total of 5x SNMPv3 credentials with no username that are being added to nodes in addition to the SNMP credentials selected at setup. I am not sure why we have credentials with no username in the first place. After I discovered this I looked back at some of my prior setups and this appears to have been an issue for a long time, likely years. As far as I can tell almost every manual SNMP setup has two sets of credentials assigned. These 'no username' credentials are assigned to 500+ nodes making cleanup tricky and time-consuming.
This does not appear to affect data collection with the correct credentials so it may be a non-issue, but has anybody else seen this before and if so, what causes it and/or how much of an issue is it?