bowenli-oai opened a new pull request, #28464:
URL: https://github.com/apache/flink/pull/28464
## What is the purpose of the change
Expose histogram min and max from the Prometheus reporters as summary
quantiles `0.0` and `1.0`.
## Brief change log
- Export histogram min and max from `AbstractPrometheusReporter` as
summary quantiles.
- Cover the new samples in the Prometheus reporter tests.
- Document the additional histogram quantiles in the metric reporter docs.
## Verifying this change
This change added tests and can be verified as follows:
- `./mvnw -pl flink-metrics/flink-metrics-prometheus -am -DskipITs
-Dspotless.check.skip=true -Dcheckstyle.skip=true
-Dsurefire.failIfNoSpecifiedTests=false
-Dtest=PrometheusReporterTest,PrometheusReporterTaskScopeTest test`
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (no)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (no)
- The serializers: (no)
- The runtime per-record code paths (performance sensitive): (no)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (no)
- The S3 file system connector: (no)
## Documentation
- Does this pull request introduce a new feature? (yes)
- If yes, how is the feature documented? (docs)
---
##### Was generative AI tooling used to co-author this PR?
- [X] Yes (Codex (GPT-5))
Generated-by: Codex (GPT-5)
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