How to use hwmon labels?

[cmsj]

Host operating system: output of uname -a

Linux nucker 3.10.0-514.26.2.el7.x86_64 #1 SMP Tue Jul 4 15:04:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

node_exporter version: output of node_exporter -version

node_exporter, version 0.14.0 (branch: master, revision: 840ba5d)
build user: root@bb6d0678e7f3
build date: 20170321-12:12:54
go version: go1.7.5

Are you running node_exporter in Docker?

No

What did you do that produced an error?

Not an error as such, but I'm looking at the hwmon values for this machine and struggling to get decent labels.

What did you expect to see?

node_hwmon_sensor_label{chip="platform_coretemp_0",label="core_0",sensor="temp1"} 1
node_hwmon_temp_celsius{chip="platform_coretemp_0",sensor="temp1",name="core_0"} 46

What did you see instead?

node_hwmon_sensor_label{chip="platform_coretemp_0",label="core_0",sensor="temp1"} 1
node_hwmon_temp_celsius{chip="platform_coretemp_0",sensor="temp1"} 46

ie what I'm asking for here would be to include the label value for each sensor as part of its metadata.

(it's also possible that I am being stupid and there is a great way to relate these things together so my Grafana legends can have "core_0" instead of "temp1" :)

[grobie]

This is by design, as labels are not available for all sensors. If all you sensors have a label, you can do something like this to join them:

node_hwmon_temp_celsius{...} * ignoring(label) group_left(label) node_hwmon_sensor_label

[mdlayher]

It appears this is a question and the question has been answered, so closing. Feel free to re-open if I am mistaken.

[nh2]

If all you sensors have a label, you can do something like this to join them

For other people googling how to join them when some of the sensors do NOT have labels, I've asked that question here:

https://stackoverflow.com/questions/72217597/prometheus-queries-how-to-give-a-default-label-when-it-is-missing