GetRaplZones fails with zone names of the form package-N-die-M

[tomhughes]

I have a machine which, since a recent kernel upgrade, has rapl zones with names like package-0-die-0 and package-0-die-3 which confuse GetRaplZones as the name parsing at

procfs/sysfs/class_powercap.go

Line 102 in 4ba3093

func getIndexAndName(countNameUsages map[string]int, name string) (int, string) {

tries to parse 0-die-0 as a number and fails, leading to the whole thing being returned as the name.

In turn that leads to node_collector crashing due an invalid metric name of node_rapl_package-0-die-0_joules_total.

[SuperQ]

This is actually a bug in the node_exporter, not the library.

prometheus/node_exporter#2299

[tomhughes]

Ah apologies for that. I had actually started with the code when trying to figure this out but didn't realise it included unreleased fixes.