prometheus / prometheus/client_python
_count Histogram metrics in multirprocess mode
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- Python
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Description
Hi, is there a reason that the Histogram metric doesn't hold a ValueClass for the _count so they can be exposed in multiprocess mode? It would be really useful for computing averages. Thanks!
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by tracing how Histogram metrics are represented and aggregated in multiprocess mode, focusing on the missing ValueClass for _count. Check existing tests for multiprocess Histogram behavior and define how exposing _count should support average calculations. Done means the behavior is specified, implemented, and covered by tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- observability
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100