Need help with table definitions

[volkland]

Hi, first off: We are using v0.21.0 because that is what ships with Debian Bookworm. If needed, we can update to a current release, but we rather wouldn't.

We want to use snmp-exporter to scrape data from a SNMP table that looks something like this:

You can find the MIB file on GitHub: https://github.com/yatevoip/yate/blob/master/share/data/YATE-MIB.txt

Some "columns" of the table are Counters (i.e. linksetRxOctets) which we would like to see as metrics, and some are text fields (i.e. linksetType) which should be added as labels. In the end, we would like to have a prometheus output that has the values for all rows of the table:

linksetRxOctets{linksetType="$firstType", linksetStatus="$firstStatus"} $firstRxOctets
linksetRxOctets{linksetType="$secondType", linksetStatus="$secondStatus"} $secondRxOctets

linksetTxOctets{linksetType="$firstType", linksetStatus="$firstStatus"} $firstTxOctets
linksetTxOctets{linksetType="$secondType", linksetStatus="$secondStatus"} $secondTxOctets

Can someone help us with setting up the generator.yml? It seems like a simple task but all examples that we have found on the web are rather complicated.

---

We have tried the following, very minimal generator.yml:

modules:
  yate:
    walk:
      - "linksetTable" # "1.3.6.1.4.1.34501.1.6.2.2"

    lookups:
      - source_indexes: [linksetIndex]
        lookup: linksetType
    overrides:
      linksetIndex:
        ignore: true
      linksetType:
        ignore: true
      linksetStatus:
        ignore: true
      linksetId:
        ignore: true

But since we have two items in the table, a curl to the /snmp endpoint shows this:

An error has occurred while serving metrics:

5 error(s) occurred:
* collected metric "linksetTxMSU" { counter:<value:2013 > } was collected before with the same name and label values
* collected metric "linksetRxOctets" { counter:<value:19382 > } was collected before with the same name and label values
* collected metric "linksetTxOctets" { counter:<value:26061 > } was collected before with the same name and label values
* collected metric "linksetDownAlarms" { counter:<value:1 > } was collected before with the same name and label values
* collected metric "linksetRxMSU" { counter:<value:1766 > } was collected before with the same name and label values