Add experimental synchronous gauge #1410

lalitb · 2023-11-29T00:58:13Z

Changes

Adds synchronous gauge, as described in specs - https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/api.md#gauge.

The feature is experimental in specs, so the API to create the Gauge instrument is behind the feature flag - otel_unstable. The feature flag can be removed once the specs are stable.

Merge requirement checklist

CONTRIBUTING guidelines followed
Unit tests added/updated (if applicable)
Appropriate CHANGELOG.md files updated for non-trivial, user-facing changes
Changes in public API reviewed (if applicable)

examples/metrics-basic/Cargo.toml

opentelemetry/src/metrics/mod.rs

opentelemetry-sdk/src/metrics/reader.rs

cijothomas

LGTM.
Lets also add changelog entry for api,sdks.

shaun-cox

Would like others to weigh in on the comment I left about feature flags design and where experimental features should reside, in general...

examples/metrics-basic/Cargo.toml

codecov · 2023-11-30T22:18:44Z

Codecov Report

Attention: 78 lines in your changes are missing coverage. Please review.

Comparison is base (66c1d5f) 58.6% compared to head (7b836ce) 57.8%.
Report is 3 commits behind head on main.

❗ Current head 7b836ce differs from pull request most recent head c1ac8dd. Consider uploading reports for the commit c1ac8dd to get more accurate results

Files	Patch %	Lines
opentelemetry/src/metrics/instruments/gauge.rs	10.7%	25 Missing ⚠️
opentelemetry/src/metrics/mod.rs	0.0%	24 Missing ⚠️
opentelemetry/src/metrics/meter.rs	0.0%	18 Missing ⚠️
opentelemetry-sdk/src/metrics/instrument.rs	0.0%	4 Missing ⚠️
opentelemetry-sdk/src/metrics/pipeline.rs	0.0%	3 Missing ⚠️
opentelemetry/src/metrics/noop.rs	0.0%	3 Missing ⚠️
opentelemetry-sdk/src/metrics/reader.rs	0.0%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #1410     +/-   ##
=======================================
- Coverage   58.6%   57.8%   -0.9%     
=======================================
  Files        146     146             
  Lines      18719   18605    -114     
=======================================
- Hits       10984   10764    -220     
- Misses      7735    7841    +106

☔ View full report in Codecov by Sentry.
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opentelemetry-sdk/CHANGELOG.md

lalitb · 2023-12-07T15:18:37Z

@shaun-cox do you think the requested changes can be unblocked with latest commits.

[![Mend Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com) This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [opentelemetry](https://togithub.com/open-telemetry/opentelemetry-rust) | dependencies | minor | `0.21` -> `0.22` | | [opentelemetry-http](https://togithub.com/open-telemetry/opentelemetry-rust) | dependencies | minor | `0.10` -> `0.11` | | [opentelemetry-otlp](https://togithub.com/open-telemetry/opentelemetry-rust/tree/main/opentelemetry-otlp) ([source](https://togithub.com/open-telemetry/opentelemetry-rust/tree/HEAD/opentelemetry-otlp)) | dependencies | minor | `0.14` -> `0.15` | | [opentelemetry_sdk](https://togithub.com/open-telemetry/opentelemetry-rust) | dependencies | minor | `0.21` -> `0.22` | | [tracing-opentelemetry](https://togithub.com/tokio-rs/tracing-opentelemetry) | dependencies | minor | `0.22` -> `0.23` | --- ### Release Notes <details> <summary>open-telemetry/opentelemetry-rust (opentelemetry)</summary> ### [`v0.22.0`](https://togithub.com/open-telemetry/opentelemetry-rust/releases/tag/v0.22.0) [Compare Source](https://togithub.com/open-telemetry/opentelemetry-rust/compare/v0.21.0...opentelemetry-0.22.0) ### API #### Added - [https://github.com/open-telemetry/opentelemetry-rust/pull/1410](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1410) Add experimental synchronous gauge. This is behind the feature flag, and can be enabled by enabling the feature otel_unstable for opentelemetry crate. - [https://github.com/open-telemetry/opentelemetry-rust/pull/1410](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1410) Guidelines to add new unstable/experimental features. #### Changed - Modified AnyValue.Map to be backed by HashMap instead of custom OrderMap, which internally used IndexMap. There was no requirement to maintain the order of entries, so moving from IndexMap to HashMap offers slight performance gains, and avoids IndexMap dependency. This affects body and attributes of LogRecord. [https://github.com/open-telemetry/opentelemetry-rust/pull/1353](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1353) - Add TextMapCompositePropagator [https://github.com/open-telemetry/opentelemetry-rust/pull/1373](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1373) - Turned off events for NoopLogger to save on operations [https://github.com/open-telemetry/opentelemetry-rust/pull/1455](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1455) #### Removed - Removed OrderMap type as there was no requirement to use this over regular HashMap. [https://github.com/open-telemetry/opentelemetry-rust/pull/1353](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1353) - Remove API for Creating Histograms with signed integers. [https://github.com/open-telemetry/opentelemetry-rust/pull/1371](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1371) - Remove global::shutdown_meter_provider, use SdkMeterProvider::shutdown directly instead ([#1412](https://togithub.com/open-telemetry/opentelemetry-rust/issues/1412)). ### SDK ##### Deprecated - XrayIdGenerator in the opentelemetry-sdk has been deprecated and moved to version 0.10.0 of the opentelemetry-aws crate. ##### Added - [#1410](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1410) Add experimental synchronous gauge - [#1471](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1471) Configure batch log record processor via [`OTEL_BLRP_*`](https://togithub.com/open-telemetry/opentelemetry-specification/blob/main/specification/configuration/sdk-environment-variables.md#batch-logrecord-processor) environment variables and via `OtlpLogPipeline::with_batch_config` - [#1503](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1503) Make the documentation for In-Memory exporters visible. - [#1526](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1526) Performance Improvement : Creating Spans and LogRecords are now faster, by avoiding expensive cloning of `Resource` for every Span/LogRecord. ##### Changed - **Breaking** [#1313](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1313) [#1350](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1350) Changes how Span links/events are stored to achieve performance gains. See below for details: *Behavior Change*: When enforcing `max_links_per_span`, `max_events_per_span` from `SpanLimits`, links/events are kept in the first-come order. The previous "eviction" based approach is no longer performed. *Breaking Change Affecting Exporter authors*: `SpanData` now stores `links` as `SpanLinks` instead of `EvictedQueue` where `SpanLinks` is a struct with a `Vec` of links and `dropped_count`. `SpanData` now stores `events` as `SpanEvents` instead of `EvictedQueue` where `SpanEvents` is a struct with a `Vec` of events and `dropped_count`. - **Breaking** Remove `TextMapCompositePropagator` [#1373](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1373). Use `TextMapCompositePropagator` in opentelemetry API. - [#1375](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1375/) Fix metric collections during PeriodicReader shutdown - **Breaking** [#1480](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1480) Remove fine grained `BatchConfig` configurations from `BatchLogProcessorBuilder` and `BatchSpanProcessorBuilder`. Use `BatchConfigBuilder` to construct a `BatchConfig` instance and pass it using `BatchLogProcessorBuilder::with_batch_config` or `BatchSpanProcessorBuilder::with_batch_config`. - **Breaking** [#1480](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1480) Remove mutating functions from `BatchConfig`, use `BatchConfigBuilder` to construct a `BatchConfig` instance. - **Breaking** [#1495](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1495) Remove Batch LogRecord\&Span Processor configuration via non-standard environment variables. Use the following table to migrate from the no longer supported non-standard environment variables to the standard ones. | No longer supported | Standard equivalent | |---------------------------------|---------------------------| | OTEL_BLRP_SCHEDULE_DELAY_MILLIS | OTEL_BLRP_SCHEDULE_DELAY | | OTEL_BLRP_EXPORT_TIMEOUT_MILLIS | OTEL_BLRP_EXPORT_TIMEOUT | | OTEL_BSP_SCHEDULE_DELAY_MILLIS | OTEL_BSP_SCHEDULE_DELAY | | OTEL_BSP_EXPORT_TIMEOUT_MILLIS | OTEL_BSP_EXPORT_TIMEOUT | - **Breaking** [1455](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1455) Make the LoggerProvider Owned - `Logger` now takes an Owned Logger instead of a `Weak<LoggerProviderInner>` - `LoggerProviderInner` is no longer `pub (crate)` - `Logger.provider()` now returns `&LoggerProvider` instead of an `Option<LoggerProvider>` - [1519](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1519) Performance improvements when calling `Counter::add()` and `UpDownCounter::add()` with an empty set of attributes (e.g. `counter.Add(5, &[])`) ##### Fixed - [#1481](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1481) Fix error message caused by race condition when using PeriodicReader </details> <details> <summary>open-telemetry/opentelemetry-rust (opentelemetry-otlp)</summary> ### [`v0.15.0`](https://togithub.com/open-telemetry/opentelemetry-rust/blob/HEAD/opentelemetry-otlp/CHANGELOG.md#v0150) [Compare Source](https://togithub.com/open-telemetry/opentelemetry-rust/compare/opentelemetry-otlp-0.14.0...opentelemetry-otlp-0.15.0) ##### Added - Support custom channels in topic exporters [#1335](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1335) - Allow specifying OTLP Tonic metadata from env variable [#1377](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1377) ##### Changed - Update to tonic 0.11 and prost 0.12 [#1536](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1536) ##### Fixed - Fix `tonic()` to the use correct port. [#1556](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1556) ##### Removed - **Breaking** Remove support for surf HTTP client [#1537](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1537) - **Breaking** Remove support for grpcio transport [#1534](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1534) </details> <details> <summary>tokio-rs/tracing-opentelemetry (tracing-opentelemetry)</summary> ### [`v0.23.0`](https://togithub.com/tokio-rs/tracing-opentelemetry/blob/HEAD/CHANGELOG.md#0230-February-26-2024) [Compare Source](https://togithub.com/tokio-rs/tracing-opentelemetry/compare/v0.22.0...v0.23.0) ##### Breaking Changes - Upgrade to opentelemetry 0.22. Refer to the upstream [changelog](https://togithub.com/open-telemetry/opentelemetry-rust/releases/tag/v0.22.0) for more information. In particular, i64 histograms will silently downgrade to key/value exports. </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 👻 **Immortal**: This PR will be recreated if closed unmerged. Get [config help](https://togithub.com/renovatebot/renovate/discussions) if that's undesired. --- - [ ] If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://developer.mend.io/github/TheHackerApp/logging).  Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [opentelemetry](https://togithub.com/open-telemetry/opentelemetry-rust) | workspace.dependencies | minor | `0.21` -> `0.24` | | [opentelemetry-otlp](https://togithub.com/open-telemetry/opentelemetry-rust/tree/main/opentelemetry-otlp) ([source](https://togithub.com/open-telemetry/opentelemetry-rust/tree/HEAD/opentelemetry-otlp)) | workspace.dependencies | minor | `0.14` -> `0.17` | | [opentelemetry_sdk](https://togithub.com/open-telemetry/opentelemetry-rust) | workspace.dependencies | minor | `0.21` -> `0.24` | --- ### Release Notes <details> <summary>open-telemetry/opentelemetry-rust (opentelemetry)</summary> ### [`v0.24.0`](https://togithub.com/open-telemetry/opentelemetry-rust/releases/tag/opentelemetry-0.24.0) [Compare Source](https://togithub.com/open-telemetry/opentelemetry-rust/compare/opentelemetry-0.23.0...opentelemetry-0.24.0) See individual crate changelogs for details. ### [`v0.23.0`](https://togithub.com/open-telemetry/opentelemetry-rust/releases/tag/opentelemetry-0.23.0): 0.23.0 [Compare Source](https://togithub.com/open-telemetry/opentelemetry-rust/compare/opentelemetry-0.22.0...opentelemetry-0.23.0) #### Whats changed? See individual crate changelogs for details. #### New Contributors [@svix-jplatte](https://togithub.com/svix-jplatte) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1568](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1568) [@rex4539](https://togithub.com/rex4539) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1587](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1587) [@divergentdave](https://togithub.com/divergentdave) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1584](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1584) [@pyohannes](https://togithub.com/pyohannes) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1578](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1578) [@masato-hi](https://togithub.com/masato-hi) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1621](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1621) [@rogercoll](https://togithub.com/rogercoll) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1624](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1624) [@LuisOsta](https://togithub.com/LuisOsta) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1638](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1638) [@svrnm](https://togithub.com/svrnm) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1664](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1664) [@Lev1ty](https://togithub.com/Lev1ty) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1672](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1672) [@ThomsonTan](https://togithub.com/ThomsonTan) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1675](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1675) [@ramgdev](https://togithub.com/ramgdev) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1585](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1585) [@utpilla](https://togithub.com/utpilla) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1701](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1701) [@ChieloNewctle](https://togithub.com/ChieloNewctle) made their first contribution in [https://github.com/open-telemetry/opentelemetry-rust/pull/1746](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1746) ### [`v0.22.0`](https://togithub.com/open-telemetry/opentelemetry-rust/releases/tag/v0.22.0) [Compare Source](https://togithub.com/open-telemetry/opentelemetry-rust/compare/v0.21.0...opentelemetry-0.22.0) ### API #### Added - [https://github.com/open-telemetry/opentelemetry-rust/pull/1410](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1410) Add experimental synchronous gauge. This is behind the feature flag, and can be enabled by enabling the feature otel_unstable for opentelemetry crate. - [https://github.com/open-telemetry/opentelemetry-rust/pull/1410](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1410) Guidelines to add new unstable/experimental features. #### Changed - Modified AnyValue.Map to be backed by HashMap instead of custom OrderMap, which internally used IndexMap. There was no requirement to maintain the order of entries, so moving from IndexMap to HashMap offers slight performance gains, and avoids IndexMap dependency. This affects body and attributes of LogRecord. [https://github.com/open-telemetry/opentelemetry-rust/pull/1353](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1353) - Add TextMapCompositePropagator [https://github.com/open-telemetry/opentelemetry-rust/pull/1373](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1373) - Turned off events for NoopLogger to save on operations [https://github.com/open-telemetry/opentelemetry-rust/pull/1455](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1455) #### Removed - Removed OrderMap type as there was no requirement to use this over regular HashMap. [https://github.com/open-telemetry/opentelemetry-rust/pull/1353](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1353) - Remove API for Creating Histograms with signed integers. [https://github.com/open-telemetry/opentelemetry-rust/pull/1371](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1371) - Remove global::shutdown_meter_provider, use SdkMeterProvider::shutdown directly instead ([#1412](https://togithub.com/open-telemetry/opentelemetry-rust/issues/1412)). ### SDK ##### Deprecated - XrayIdGenerator in the opentelemetry-sdk has been deprecated and moved to version 0.10.0 of the opentelemetry-aws crate. ##### Added - [#1410](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1410) Add experimental synchronous gauge - [#1471](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1471) Configure batch log record processor via [`OTEL_BLRP_*`](https://togithub.com/open-telemetry/opentelemetry-specification/blob/main/specification/configuration/sdk-environment-variables.md#batch-logrecord-processor) environment variables and via `OtlpLogPipeline::with_batch_config` - [#1503](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1503) Make the documentation for In-Memory exporters visible. - [#1526](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1526) Performance Improvement : Creating Spans and LogRecords are now faster, by avoiding expensive cloning of `Resource` for every Span/LogRecord. ##### Changed - **Breaking** [#1313](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1313) [#1350](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1350) Changes how Span links/events are stored to achieve performance gains. See below for details: *Behavior Change*: When enforcing `max_links_per_span`, `max_events_per_span` from `SpanLimits`, links/events are kept in the first-come order. The previous "eviction" based approach is no longer performed. *Breaking Change Affecting Exporter authors*: `SpanData` now stores `links` as `SpanLinks` instead of `EvictedQueue` where `SpanLinks` is a struct with a `Vec` of links and `dropped_count`. `SpanData` now stores `events` as `SpanEvents` instead of `EvictedQueue` where `SpanEvents` is a struct with a `Vec` of events and `dropped_count`. - **Breaking** Remove `TextMapCompositePropagator` [#1373](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1373). Use `TextMapCompositePropagator` in opentelemetry API. - [#1375](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1375/) Fix metric collections during PeriodicReader shutdown - **Breaking** [#1480](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1480) Remove fine grained `BatchConfig` configurations from `BatchLogProcessorBuilder` and `BatchSpanProcessorBuilder`. Use `BatchConfigBuilder` to construct a `BatchConfig` instance and pass it using `BatchLogProcessorBuilder::with_batch_config` or `BatchSpanProcessorBuilder::with_batch_config`. - **Breaking** [#1480](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1480) Remove mutating functions from `BatchConfig`, use `BatchConfigBuilder` to construct a `BatchConfig` instance. - **Breaking** [#1495](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1495) Remove Batch LogRecord\&Span Processor configuration via non-standard environment variables. Use the following table to migrate from the no longer supported non-standard environment variables to the standard ones. | No longer supported | Standard equivalent | |---------------------------------|---------------------------| | OTEL_BLRP_SCHEDULE_DELAY_MILLIS | OTEL_BLRP_SCHEDULE_DELAY | | OTEL_BLRP_EXPORT_TIMEOUT_MILLIS | OTEL_BLRP_EXPORT_TIMEOUT | | OTEL_BSP_SCHEDULE_DELAY_MILLIS | OTEL_BSP_SCHEDULE_DELAY | | OTEL_BSP_EXPORT_TIMEOUT_MILLIS | OTEL_BSP_EXPORT_TIMEOUT | - **Breaking** [1455](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1455) Make the LoggerProvider Owned - `Logger` now takes an Owned Logger instead of a `Weak<LoggerProviderInner>` - `LoggerProviderInner` is no longer `pub (crate)` - `Logger.provider()` now returns `&LoggerProvider` instead of an `Option<LoggerProvider>` - [1519](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1519) Performance improvements when calling `Counter::add()` and `UpDownCounter::add()` with an empty set of attributes (e.g. `counter.Add(5, &[])`) ##### Fixed - [#1481](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1481) Fix error message caused by race condition when using PeriodicReader </details> <details> <summary>open-telemetry/opentelemetry-rust (opentelemetry-otlp)</summary> ### [`v0.17.0`](https://togithub.com/open-telemetry/opentelemetry-rust/blob/HEAD/opentelemetry-otlp/CHANGELOG.md#v0170) [Compare Source](https://togithub.com/open-telemetry/opentelemetry-rust/compare/opentelemetry-otlp-0.16.0...opentelemetry-otlp-0.17.0) - Add "metrics", "logs" to default features. With this, default feature list is "trace", "metrics" and "logs". - `OtlpMetricPipeline.build()` no longer invoke the `global::set_meter_provider`. User who setup the pipeline must do it themselves using `global::set_meter_provider(meter_provider.clone());`. - Add `with_resource` on `OtlpLogPipeline`, replacing the `with_config` method. Instead of using `.with_config(Config::default().with_resource(RESOURCE::default()))` users must now use `.with_resource(RESOURCE::default())` to configure Resource when using `OtlpLogPipeline`. - **Breaking** The methods `OtlpTracePipeline::install_simple()` and `OtlpTracePipeline::install_batch()` would now return `TracerProvider` instead of `Tracer`. These methods would also no longer set the global tracer provider. It would now be the responsibility of users to set it by calling `global::set_tracer_provider(tracer_provider.clone());`. Refer to the [basic-otlp](https://togithub.com/open-telemetry/opentelemetry-rust/blob/main/opentelemetry-otlp/examples/basic-otlp/src/main.rs) and [basic-otlp-http](https://togithub.com/open-telemetry/opentelemetry-rust/blob/main/opentelemetry-otlp/examples/basic-otlp-http/src/main.rs) examples on how to initialize OTLP Trace Exporter. - **Breaking** Correct the misspelling of "webkpi" to "webpki" in features [#1842](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1842) - Bump MSRV to 1.70 [#1840](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1840) - Fixing the OTLP HTTP/JSON exporter. [#1882](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1882) - The exporter was broken in the previous release. - **Breaking** [1869](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1869) The OTLP logs exporter now overrides the [InstrumentationScope::name](https://togithub.com/open-telemetry/opentelemetry-proto/blob/b3060d2104df364136d75a35779e6bd48bac449a/opentelemetry/proto/common/v1/common.proto#L73) field with the `target` from `LogRecord`, if target is populated. - Groups batch of `LogRecord` and `Span` by their resource and instrumentation scope before exporting, for better efficiency [#1873](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1873). - **Breaking** Update to `http` v1 and `tonic` v0.12 [#1674](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1674) - Update `opentelemetry` dependency version to 0.24 - Update `opentelemetry_sdk` dependency version to 0.24 - Update `opentelemetry-http` dependency version to 0.13 - Update `opentelemetry-proto` dependency version to 0.7 ### [`v0.16.0`](https://togithub.com/open-telemetry/opentelemetry-rust/blob/HEAD/opentelemetry-otlp/CHANGELOG.md#v0160) [Compare Source](https://togithub.com/open-telemetry/opentelemetry-rust/compare/opentelemetry-otlp-0.15.0...opentelemetry-otlp-0.16.0) ##### Fixed - URL encoded values in `OTEL_EXPORTER_OTLP_HEADERS` are now correctly decoded. [#1578](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1578) - OTLP exporter will not change the URL added through `ExportConfig` [#1706](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1706) - Default grpc endpoint will not have path based on signal(e.g `/v1/traces`) [#1706](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1706) - Fix feature flags for `OTEL_EXPORTER_OTLP_PROTOCOL_DEFAULT` [#1746](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1746) ##### Added - Added `DeltaTemporalitySelector` ([#1568]) - Add `webkpi-roots` features to `reqwest` and `tonic` backends [#1568]: https://togithub.com/open-telemetry/opentelemetry-rust/pull/1568 ##### Changed - **Breaking** Remove global provider for Logs [#1691](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1691/) - The method OtlpLogPipeline::install_simple() and OtlpLogPipeline::install_batch() now return `LoggerProvider` instead of `Logger`. Refer to the [basic-otlp](https://togithub.com/open-telemetry/opentelemetry-rust/blob/main/opentelemetry-otlp/examples/basic-otlp/src/main.rs) and [basic-otlp-http](https://togithub.com/open-telemetry/opentelemetry-rust/blob/main/opentelemetry-otlp/examples/basic-otlp-http/src/main.rs) examples for how to initialize OTLP Log Exporter to use with OpenTelemetryLogBridge and OpenTelemetryTracingBridge respectively. - Update `opentelemetry` dependency version to 0.23 - Update `opentelemetry_sdk` dependency version to 0.23 - Update `opentelemetry-http` dependency version to 0.12 - Update `opentelemetry-proto` dependency version to 0.6 ### [`v0.15.0`](https://togithub.com/open-telemetry/opentelemetry-rust/blob/HEAD/opentelemetry-otlp/CHANGELOG.md#v0150) [Compare Source](https://togithub.com/open-telemetry/opentelemetry-rust/compare/opentelemetry-otlp-0.14.0...opentelemetry-otlp-0.15.0) ##### Added - Support custom channels in topic exporters [#1335](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1335) - Allow specifying OTLP Tonic metadata from env variable [#1377](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1377) ##### Changed - Update to tonic 0.11 and prost 0.12 [#1536](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1536) ##### Fixed - Fix `tonic()` to the use correct port. [#1556](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1556) ##### Removed - **Breaking** Remove support for surf HTTP client [#1537](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1537) - **Breaking** Remove support for grpcio transport [#1534](https://togithub.com/open-telemetry/opentelemetry-rust/pull/1534) </details> --- ### Configuration 📅 **Schedule**: Branch creation - "on the first day of the month" in timezone America/Los_Angeles, Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 👻 **Immortal**: This PR will be recreated if closed unmerged. Get [config help](https://togithub.com/renovatebot/renovate/discussions) if that's undesired. --- - [ ] If you want to rebase/retry this PR, check this box --- This PR was generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View the [repository job log](https://developer.mend.io/github/get-convex/convex). GitOrigin-RevId: 81963454ddea644957059f98bcf8ecbcf4b47255

lalitb added 4 commits November 28, 2023 23:53

add synchronous gauge

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add experimental feature

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fix comments

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enable gauge in metrics example

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Proposal: Naming for features #1411

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use otel_unstable cfg

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lalitb added 4 commits November 30, 2023 22:26

update contributing.md

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Merge branch 'main' into sync-gauge

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changelog

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lalitb and others added 5 commits December 1, 2023 18:27

update changelog

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switch to feature flag

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update contributing

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cijothomas approved these changes Dec 5, 2023

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cijothomas and others added 2 commits December 4, 2023 17:37

Merge branch 'main' into sync-gauge

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Merge branch 'main' into sync-gauge

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cijothomas merged commit 038b91b into open-telemetry:main Dec 12, 2023
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lalitb mentioned this pull request Dec 19, 2023

Add API support for bound instruments #1444

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lalitb mentioned this pull request Jan 19, 2024

There should be a way to create a synchronous guage. #1483

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whoahbot mentioned this pull request Feb 22, 2024

Start working on custom metrics for Kafka bytewax/bytewax#404

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0xForerunner mentioned this pull request Feb 27, 2024

Support for synchronous guages tokio-rs/tracing-opentelemetry#109

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cijothomas mentioned this pull request Apr 29, 2024

Stabilize synchronous gauge instrument API open-telemetry/opentelemetry-specification#3893

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cijothomas mentioned this pull request Nov 9, 2024

Rename logs_level_enabled flag to spec_unstable_logs_enabled #2291

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Update all non-major dependencies x7c1/gesha#99

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Add experimental synchronous gauge #1410

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Add experimental synchronous gauge #1410

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