DisplayData convertion didn't work as expected

[ThomasUllrich666]

Host operating system: output of uname -a

Linux sekidp-snmp-exporter-756d7b848c-5qj2h 4.18.0-477.13.1.el8_8.x86_64 #1 SMP Thu May 18 10:27:05 EDT 2023 x86_64 GNU/Linux

snmp_exporter version: output of snmp_exporter -version

snmp_exporter, version 0.23.0 (branch: HEAD, revision: 20657d2)
build user: root@f2310b8dd92c
build date: 20230816-09:56:45
go version: go1.20.7
platform: linux/amd64
tags: netgo

What device/snmpwalk OID are you using?

ThinkSystem SR630 V2
OID: 1.3.6.1.4.1.19046.11.1.1.1.2.1.3
https://www.circitor.fr/Mibs/Html/L/LENOVO-XCC-MIB.php#tempReading

If this is a new device, please link to the MIB(s).

https://www.circitor.fr/Mibs/Html/L/LENOVO-XCC-MIB.php

What did you do that produced an error?

I want to override the Display string parameter of the temperature value to a gauge datatype.
Currently the temperature value is represented as a String that lead to the situation that each value will be represented as a label in prometheus.

Therefore I added the overrides parameter to mark it as gauge.

Unfortunately this didn't work. The snmp agent captures always 0 instead of the values.

lenovo-xcc:
walk:
- temperature
- voltage
- fans
- systemHealth
- leds
- hostMACAddressTable
- xccVpdEntry
- spTxtId
- machineVpd
overrides:
voltReading:
type: gauge
voltNominalReading:
type: gauge
voltNonRecovLimitHigh:
type: gauge
voltNonCritLimitHigh:
type: gauge
voltNonRecovLimitLow:
type: gauge
voltCritLimitHigh:
type: gauge
voltCritLimitLow:
type: gauge
voltNonCritLimitLow:
type: gauge
tempReading:
type: gauge
tempNominalReading:
type: gauge
tempNonRecovLimitHigh:
type: gauge
tempNonCritLimitHigh:
type: gauge
tempNonRecovLimitLow:
type: gauge
tempCritLimitLow:
type: gauge
tempNonCritLimitLow:
type: gauge

What did you expect to see?

the temperature values

What did you see instead?

just 0