Merge branch 'main' into add_force_flush_log

opentelemetry-otlp/CHANGELOG.md

@@ -2,14 +2,6 @@
 
 ## vNext
 
-## v0.26.0
-Released 2024-Sep-30
-
-- Update `opentelemetry` dependency version to 0.26
-- Update `opentelemetry_sdk` dependency version to 0.26
-- Update `opentelemetry-http` dependency version to 0.26
-- Update `opentelemetry-proto` dependency version to 0.26
-- Bump MSRV to 1.71.1 [2140](https://github.com/open-telemetry/opentelemetry-rust/pull/2140)
 - **BREAKING**: 
   - ([#2217](https://github.com/open-telemetry/opentelemetry-rust/pull/2217)) **Replaced**: The `MetricsExporterBuilder` interface is modified from `with_temporality_selector` to `with_temporality` example can be seen below:
     Previous Signature:
@@ -31,6 +23,7 @@ Released 2024-Sep-30
     ```rust
     let logger_provider: LoggerProvider = opentelemetry_otlp::new_pipeline()
       .logging()
+      .with_resource(RESOURCE.clone())
       .with_exporter(
           opentelemetry_otlp::new_exporter()
               .tonic()
@@ -40,13 +33,15 @@ Released 2024-Sep-30
     ```
     Updated Signature:
     ```rust
-    let logger_provider: LoggerProvider = LoggerProvider::builder()
-      .install_batch_exporter(
-          LogExporter::builder()
-              .with_tonic()
-              .with_endpoint("http://localhost:4317")
-              .build()?,
-      ).build();
+    let exporter = LogExporter::builder()
+        .with_tonic()
+        .with_endpoint("http://localhost:4317")
+        .build()?;
+
+    Ok(LoggerProvider::builder()
+        .with_resource(RESOURCE.clone())
+        .with_batch_exporter(exporter, runtime::Tokio)
+        .build())
     ```
   - **Renamed**
     - ([#2255](https://github.com/open-telemetry/opentelemetry-rust/pull/2255)): de-pluralize Metric types.
@@ -56,6 +51,15 @@ Released 2024-Sep-30
   - [#2263](https://github.com/open-telemetry/opentelemetry-rust/pull/2263)
   Support `hyper` client for opentelemetry-otlp. This can be enabled using flag `hyper-client`. 
   Refer example: https://github.com/open-telemetry/opentelemetry-rust/tree/main/opentelemetry-otlp/examples/basic-otlp-http
+
+## v0.26.0
+Released 2024-Sep-30
+
+- Update `opentelemetry` dependency version to 0.26
+- Update `opentelemetry_sdk` dependency version to 0.26
+- Update `opentelemetry-http` dependency version to 0.26
+- Update `opentelemetry-proto` dependency version to 0.26
+- Bump MSRV to 1.71.1 [2140](https://github.com/open-telemetry/opentelemetry-rust/pull/2140)
 
 ## v0.25.0
 

opentelemetry-sdk/CHANGELOG.md

@@ -5,7 +5,7 @@
 - Bump MSRV to 1.70 [#2179](https://github.com/open-telemetry/opentelemetry-rust/pull/2179)
 - Implement `LogRecord::set_trace_context` for `LogRecord`. Respect any trace context set on a `LogRecord` when emitting through a `Logger`.
 - Improved `LoggerProvider` shutdown handling to prevent redundant shutdown calls when `drop` is invoked. [#2195](https://github.com/open-telemetry/opentelemetry-rust/pull/2195)
-- When creating new metric instruments, SDK would return a no-op instrument if the validation fails. [#2166](https://github.com/open-telemetry/opentelemetry-rust/pull/2166)
+- When creating new metric instruments by calling `build()`, SDK would return a no-op instrument if the validation fails (eg: Invalid metric name). [#2166](https://github.com/open-telemetry/opentelemetry-rust/pull/2166)
 - **BREAKING for Metrics users**:
   - **Replaced**
     - ([#2217](https://github.com/open-telemetry/opentelemetry-rust/pull/2217)): Removed `{Delta,Cumulative}TemporalitySelector::new()` in favor of directly using `Temporality` enum to simplify the configuration of MetricsExporterBuilder with different temporalities.

opentelemetry/CHANGELOG.md

@@ -8,11 +8,9 @@
 - Introduced `SyncInstrument` trait to replace the individual synchronous instrument traits (`SyncCounter`, `SyncGauge`, `SyncHistogram`, `SyncUpDownCounter`) which are meant for SDK implementation. [#2207](https://github.com/open-telemetry/opentelemetry-rust/pull/2207)
 - Ensured that `observe` method on asynchronous instruments can only be called inside a callback. This was done by removing the implementation of `AsyncInstrument` trait for each of the asynchronous instruments. [#2210](https://github.com/open-telemetry/opentelemetry-rust/pull/2210)
 - Removed `PartialOrd` and `Ord` implementations for `KeyValue`. [#2215](https://github.com/open-telemetry/opentelemetry-rust/pull/2215)
-- **Breaking change** Removed `try_init` methods from the instrument builders. Users should only use `init` method to create instruments. [#2227](https://github.com/open-telemetry/opentelemetry-rust/pull/2227)
-- Updated the return types of `InstrumentProvider` trait methods to return the instrument instead of a `Result`. [#2227](https://github.com/open-telemetry/opentelemetry-rust/pull/2227)
 - **Breaking change for exporter authors:** Marked `KeyValue` related structs and enums as `non_exhaustive`. [#2228](https://github.com/open-telemetry/opentelemetry-rust/pull/2228)
 - **Breaking change for log exporter authors:** Marked `AnyValue` enum as `non_exhaustive`. [#2230](https://github.com/open-telemetry/opentelemetry-rust/pull/2230)
-- **Breaking change for Metrics users:** The `init` method used to create instruments has been renamed to `build`.
+- **Breaking change for Metrics users:** The `init` method used to create instruments has been renamed to `build`. Also, `try_init()` method is removed from instrument builders. The return types of `InstrumentProvider` trait methods modified to return the instrument struct, instead of `Result`. [#2227](https://github.com/open-telemetry/opentelemetry-rust/pull/2227)
 
 Before:
 ```rust
@@ -32,16 +30,16 @@ let counter = meter.u64_counter("my_counter").build();
   - Replaced these methods with `LoggerProvider::logger_with_scope`, `TracerProvider::logger_with_scope`, `MeterProvider::meter_with_scope`
   - Replaced `global::meter_with_version` with `global::meter_with_scope`
   - Added `global::tracer_with_scope`
+  - Refer to PR description for migration guide.
+- **Breaking change**: replaced `InstrumentationScope` public attributes by getters [#2275](https://github.com/open-telemetry/opentelemetry-rust/pull/2275)  
 
 - **Breaking change**: [#2260](https://github.com/open-telemetry/opentelemetry-rust/pull/2260)
   - Removed `global::set_error_handler` and `global::handle_error`. 
   - `global::handle_error` usage inside the opentelemetry crates has been replaced with `global::otel_info`, `otel_warn`, `otel_debug` and `otel_error` macros based on the severity of the internal logs.
-  - The default behavior of `global::handle_error` was to log the error using `eprintln!`. With otel macro, the internal logs get emitted via `tracing` macros of matching severity. Users now need to configure the `tracing` layer to capture these logs.
-  - Refer to this PR description for migration guide. Also refer to [self-diagnostics](https://github.com/open-telemetry/opentelemetry-rust/tree/main/examples/self-diagnostics) example on how to configure the tracing layer for internal logs.
-- **Breaking change**: replaced `InstrumentationScope` public attributes by getters [#2275](https://github.com/open-telemetry/opentelemetry-rust/pull/2275)
+  - The default behavior of `global::handle_error` was to log the error using `eprintln!`. With otel macros, the internal logs get emitted via `tracing` macros of matching severity. Users now need to configure a `tracing` layer/subscriber to capture these logs.
+  - Refer to PR description for migration guide. Also refer to [self-diagnostics](https://github.com/open-telemetry/opentelemetry-rust/tree/main/examples/self-diagnostics) example to learn how to view internal logs in stdout using `tracing::fmt` layer.
 
-
-- [#2266](https://github.com/open-telemetry/opentelemetry-rust/pull/2266)
+- **Breaking change for exporter/processor authors:** [#2266](https://github.com/open-telemetry/opentelemetry-rust/pull/2266)
    - Moved `ExportError` trait from `opentelemetry::ExportError` to `opentelemetry_sdk::export::ExportError`
    - Created new trait `opentelemetry::trace::ExportError` for trace API. This would be eventually be consolidated with ExportError in the SDK.
    - Moved `LogError` enum from `opentelemetry::logs::LogError` to `opentelemetry_sdk::logs::LogError`