prometheus-community / prometheus-community/stackdriver_exporter
[Feature Request] Add support for native histogram
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- Dominant language
- Go
- Stars
- 295
- Forks
- 117
- Avg merge
- 9d 14h
- Merged PRs (30d)
- 7
Description
Hi,
we currently try to implement a SLO on the GCP metric 'loadbalancing.googleapis.com/https/backend_latencies'. This currently gets handled by the exporter in what is now called a conventional histogram in prometheus. This does not allow the usage of new histogram functions like https://prometheus.io/docs/prometheus/latest/querying/functions/#histogram_fraction. We would like to be able to use it so we can select latencies under 500ms with histogram_fraction(0, 500, rate(stackdriver_https_lb_rule_loadbalancing_googleapis_com_https_backend_latencies_bucket[5m])) and above with this histogram_fraction(500, +Inf, rate(stackdriver_https_lb_rule_loadbalancing_googleapis_com_https_backend_latencies_bucket[5m]))
If wanted i could also provide a PR with that feature.
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 the GCP metric loadbalancing.googleapis.com/https/backend_latencies is converted into Prometheus histogram series. Compare the current conventional histogram output with Prometheus native histogram requirements, then verify that histogram_fraction queries for ranges below and above 500ms work as requested.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- go, google-cloud, prometheus
- Domain
- cloud, observability-sre
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100