prometheus / prometheus/procfs

Error Handling for Offline Thermal Zones

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Dominant language
Go
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883
Forks
388
Avg merge
13h 28m
Merged PRs (30d)
3

Description

Description:

When procfs try to read the offline thermal zones, it gets stuck. please check this issue for more details.

Device:

  • Jetson Orin Nano
  • Linux 5.15.136-tegra
  • node_exporter version 1.9.0

for ex, when it tries to read thermal_zone2, it gets stuck.

$ cat /sys/class/thermal/thermal_zone2/temp
cat: /sys/class/thermal/thermal_zone2/temp: Resource temporarily unavailable

It would be helpful if it could handle this scenario more gracefully.

I have attempted to trace the error, here is the backtrace:

Image

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the procfs code that reads Linux thermal zones and reproduce the failure with the Jetson Orin Nano details and thermal_zone2 path. Trace how the Resource temporarily unavailable error is handled, then verify that offline zones no longer leave collection stuck and that the existing thermal-zone behavior remains intact.

Written by the indexing model from the issue text.

Assessment

Tech stack
go, linux
Domain
operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
52/100

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