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Add support for Prometheus Exemplars

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See gh-30472
This commit is contained in:
Jonatan Ivanov
2022-03-29 18:29:09 -07:00
committed by Moritz Halbritter
parent 51c45d5b10
commit d0bc31a5e9
3 changed files with 56 additions and 2 deletions
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spring-boot-project/spring-boot-docs/src/docs/asciidoc/actuator/metrics.adoc
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@@ -455,6 +455,9 @@ The following example `scrape_config` adds to `prometheus.yml`:
- targets: ["HOST:PORT"]
----
https://prometheus.io/docs/prometheus/latest/feature_flags/#exemplars-storage[Prometheus Exemplars] are also supported. To enable this feature, a `SpanContextSupplier` bean should present. If you use https://spring.io/projects/spring-cloud-sleuth[Spring Cloud Sleuth], this will be auto-configured for you, but you can always create your own if you want. +
Please check the https://prometheus.io/docs/prometheus/latest/feature_flags/#exemplars-storage[Prometheus Docs], since this feature needs to be explicitly enabled on Prometheus' side, and it is only supported using the https://github.com/OpenObservability/OpenMetrics/blob/v1.0.0/specification/OpenMetrics.md#exemplars[OpenMetrics] format.
For ephemeral or batch jobs that may not exist long enough to be scraped, you can use https://github.com/prometheus/pushgateway[Prometheus Pushgateway] support to expose the metrics to Prometheus.
To enable Prometheus Pushgateway support, add the following dependency to your project: