Prometheus exporter: Stabilize Default Aggregation#5113
Merged
jack-berg merged 3 commits intoJun 2, 2026
Merged
Conversation
Member
Author
|
@dashpole, should we work on at least one extra implementation before calling this stable? |
Contributor
|
Yeah, one more implementation would be ideal. |
jack-berg
approved these changes
May 22, 2026
jack-berg
left a comment
jack-berg
left a comment
Member
There was a problem hiding this comment.
Realized this option isn't supported in declarative config: open-telemetry/opentelemetry-configuration#626
Member
Author
|
PRs are up for two more implementations |
reyang
approved these changes
May 26, 2026
Signed-off-by: Arthur Silva Sens <arthursens2005@gmail.com>
Signed-off-by: Arthur Silva Sens <arthursens2005@gmail.com>
ArthurSens
force-pushed
the
promexporter-stabilize-aggregation
branch
from
June 1, 2026 19:02
d20efee to
12a6881
Compare
jmacd
approved these changes
Jun 2, 2026
dashpole
pushed a commit
to dashpole/opentelemetry-specification
that referenced
this pull request
Jun 8, 2026
Fixes open-telemetry#4986 ## Changes Stabilizes the section `Default Aggregation` in the Prometheus exporter spec. Among existing implementors, it seems that only Go[[1](https://github.com/open-telemetry/opentelemetry-go/blob/e5bdc311108b8283b3d2c97636de96657dde2d4a/exporters/prometheus/config.go#L74-L82)] and Java[[2](https://github.com/open-telemetry/opentelemetry-java/blob/32440c1f83c6b1b90dee78dcdcfcecfbab42af44/exporters/prometheus/src/main/java/io/opentelemetry/exporter/prometheus/PrometheusHttpServerBuilder.java#L152-L163)] implement it correctly, I haven't found any other implementations. Collector's Prometheus exporter and Remote Write exporters aren't applicable since they don't go through the MetricReader interfaces. For non-trivial changes, follow the [change proposal process](https://github.com/open-telemetry/opentelemetry-specification/blob/main/CONTRIBUTING.md#proposing-a-change). * [x] Related issues open-telemetry#4986 * [ ] Related [OTEP(s)](https://github.com/open-telemetry/oteps) # * [ ] Links to the prototypes (when adding or changing features) * [X] [`CHANGELOG.md`](https://github.com/open-telemetry/opentelemetry-specification/blob/main/CHANGELOG.md) file updated for non-trivial changes * For trivial changes, include `[chore]` in the PR title to skip the changelog check * [ ] [Spec compliance matrix](https://github.com/open-telemetry/opentelemetry-specification/blob/main/spec-compliance-matrix/template.yaml) updated if necessary * [ ] [Declarative config data model](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/configuration/data-model.md#overview) is updated if SDK config surface is changed --------- Signed-off-by: Arthur Silva Sens <arthursens2005@gmail.com>
Merged
jack-berg
pushed a commit
to cijothomas/opentelemetry-specification
that referenced
this pull request
Jun 22, 2026
### Context - Clarify that environment variable propagation carriers normalize requested keys, carrier keys, and returned keys. ([open-telemetry#5102](open-telemetry#5102)) - Specify that environment variable propagation carriers only read and return normalized environment variable names. ([open-telemetry#5144](open-telemetry#5144)) - Specify that an empty environment variable propagation name is non-normalized and normalizes to `_`. ([open-telemetry#5163](open-telemetry#5163)) ### Profiles - Remove duplicate information from and extend Profiles documentation (README.md, pprof.md). ([open-telemetry#4932](open-telemetry#4932)) ### Entities - Add specification for communicating entity information as structured log events. ([open-telemetry#4836](open-telemetry#4836)) ### Common - Add an in-development [SDK self-observability](specification/self-observability.md) section, referenced from the Tracing, Metrics, and Logs SDK specs. ([open-telemetry#5087](open-telemetry#5087)) - Clarify non-OTLP representation guidance for nested `AnyValue` values in arrays and maps. ([open-telemetry#5053](open-telemetry#5053)) - Add in-development guidance recommending a JSON object as the string representation for an attribute in non-OTLP protocols. ([open-telemetry#5028](open-telemetry#5028)) - Add in-development guidance recommending a JSON object as the string representation for an attribute collection in non-OTLP protocols. ([open-telemetry#5110](open-telemetry#5110)) ### Compatibility - Deprecate OpenCensus compatibility requirements in the specification. ([open-telemetry#5138](open-telemetry#5138)) - Stabilize sections of Prometheus Metrics Exporter. - Clarify resource attributes configuration. ([open-telemetry#5084](open-telemetry#5084)) - Stabilize the conversion of OTLP Summaries into Prometheus Summaries. ([open-telemetry#5107](open-telemetry#5107)) - Stabilize client libs section. ([open-telemetry#5106](open-telemetry#5106)) - Stabilize Prometheus Metrics Exporter default aggregation configuration. ([open-telemetry#5113](open-telemetry#5113)) - Stabilize sections of Prometheus and OpenMetrics Compatibility. - Stabilize OpenTelemetry Histogram to Prometheus Histogram transformation. ([open-telemetry#5091](open-telemetry#5091)) - Add optional OpenTelemetry Histogram to Prometheus Native Histogram with Custom Buckets transformation. ([open-telemetry#5091](open-telemetry#5091)) ### SDK Configuration - Add link to declarative config IdGenerator type ([open-telemetry#5133](open-telemetry#5133)) ### OTEPs - Context-scoped Attributes. ([open-telemetry#4931](open-telemetry#4931)) --------- Co-authored-by: Reiley Yang <reyang@microsoft.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
5 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Fixes #4986
Changes
Stabilizes the section
Default Aggregationin the Prometheus exporter spec.Among existing implementors, it seems that only Go[1] and Java[2] implement it correctly, I haven't found any other implementations. Collector's Prometheus exporter and Remote Write exporters aren't applicable since they don't go through the MetricReader interfaces.
For non-trivial changes, follow the change proposal process.
CHANGELOG.mdfile updated for non-trivial changes[chore]in the PR title to skip the changelog check