Hi!
Some devices have sensors which are regularly deleted.
In my case it’s Cisco WS-C3850-24T-S (Cisco IOS-XE CAT3K_CAA-UNIVERSALK9-M 16.3.6 (Denali)).
Deletion means that custom thresholds are deleted.
So my feature request is new setting to prevent discovered items from being deleted.
Keep lost items period: x hours/days
Similar feature has Zabbix.
Example log:
Timestamp Type Hostname Message User
2021-12-02 00:39:12 sensor 172.16.1.1 Sensor Deleted: voltage cisco-entity-sensor 1101 Gi1/1/1 Receive Power Sensor - Gi1/1/2 Supply Voltage System
2021-11-30 06:39:10 sensor 172.16.1.1 Sensor Deleted: voltage cisco-entity-sensor 1101 Gi1/1/1 Receive Power Sensor - Gi1/1/2 Supply Voltage System
2021-11-28 00:39:39 sensor 172.16.1.1 Sensor Deleted: voltage cisco-entity-sensor 1101 Gi1/1/1 Receive Power Sensor - Gi1/1/2 Supply Voltage System
2021-11-11 12:39:19 sensor 172.16.1.1 Sensor Deleted: voltage cisco-entity-sensor 1101 Gi1/1/1 Receive Power Sensor - Gi1/1/2 Supply Voltage System