PFSense node_exporter is not emitting node_uname_info metric

[willagc]

Host operating system: output of uname -a

FreeBSD pfSense.home.arpa 14.0-CURRENT FreeBSD 14.0-CURRENT amd64 1400094 #1 RELENG_2_7_2-n255948-8d2b56da39c: Wed Dec  6 20:45:47 UTC 2023     root@freebsd:/var/jenkins/workspace/pfSense-CE-snapshots-2_7_2-main/obj/amd64/StdASW5b/var/jenkins/workspace/pfSense-CE-snapshots-2_7_2-main/sources/FreeBSD-src-RELENG_2_7_2/amd64.amd64/sys/pfSense amd64

node_exporter version: output of node_exporter --version

node_exporter --version
node_exporter, version  (branch: , revision: unknown)
  build user:       
  build date:       
  go version:       go1.20.8
  platform:         freebsd/amd64
  tags:             unknown

node_exporter command line flags

node_exporter log output

ts=2024-08-20T19:22:05.904Z caller=collector.go:169 level=error msg="collector failed" name=uname duration_seconds=1.284e-05 err="cannot allocate memory"

Are you running node_exporter in Docker?

No

What did you do that produced an error?

I am using the following grafana dashboard.

When I try to search for my PFSense target that I configured similar to this photo:

It fails to appear.

What did you expect to see?

The hostname.

What did you see instead?

Nothing.

[willagc]

To elaborate further, the dashboard is searching for this value node_uname_info:

"definition": "label_values(node_uname_info{job=\"$job\"}, instance)",
        "hide": 0,
        "includeAll": false,
        "label": "Host",
        "multi": false,
        "name": "node",
        "options": [],
        "query": {
          "query": "label_values(node_uname_info{job=\"$job\"}, instance)",
          "refId": "Prometheus-node-Variable-Query"

The PFsense node exporter is not emitting that specific metric.

[ljasinskipl]

I've got same error :(

[eriksejr]

It seems to be something related to pfSense specifically or perhaps FreeBSD 14.0. I have some other FreeBSD 14.1 hosts with node-exporter running and node_uname_info is emitted there - but not on pfSense - at least not the community edition which is on 14.0-CURRENT.

Same issue on pfSense+ with FreeBSD 15.0-CURRENT.

In all cases the same version of node-exporter is being used from the ports tree (1.6.1)