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@anuraaga anuraaga released this 07 Jan 07:20
· 1522 commits to main since this release
v1.10.0
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(These release notes contain the content of the 1.10 RCs)

With this release, the OpenTelemetry metrics API has been marked stable - you can use it through the usual opentelemetry-api artifact. The SDK is still under development and not yet stable, but we hope this can open the door to instrumentation libraries using the metrics API.

API

  • Performance of GlobalOpenTelemetry.get improved
  • buildWithCallback for asynchronous metrics now return interfaces instead of void. The interfaces are empty but will allow adding functionality in the future
  • BREAKING CHANGE: Double/LongMeasurement.observe have been removed, replaced with the record method.
  • BREAKING CHANGE: GlobalMeterProvider has been removed
  • BREAKING CHANGE: ObservableMeasurement, an empty interface, has been removed. This type was not previously deprecated but is expected to have no use in apps due to the lack of functionality
  • The Metrics API has been merged into the opentelemetry-api artifact. OpenTelemetry.getMeterProvider() is the new entrypoint
  • BREAKING CHANGE: Bound metrics instruments have been removed for now to allow more time to bake while still providing a stable metrics API
  • A warning is logged now when registering async instruments with the same name. Previously subsequent invocations were just ignored.
  • GlobalOpenTelemetry extended with helpers for meter creation

SDK

  • The semantic conventions have been updated to 1.8.0
  • Deprecated methods have been removed from the opentelemetry-sdk-autoconfigure artifact.

Exporter

  • The OkHttp gRPC exporters now support experimental retry
  • OkHttp dispatcher threads are now spawned as daemon threads
  • The JPMS module name for the logs exporter has been fixed
  • Metrics exporters can have temporality configured
  • HTTP exporters now support experimental retry
  • Jaeger exporter allows setting trusted certificates
  • gRPC exporter metric typos corected

Metrics

  • InMemoryMetricExporter has been moved to the opentelemetry-sdk-metrics-testing artifact. The current class has been deprecated in this release
  • Metric instrument usage violations consistently report issues as debug logs
  • Some user callbacks have been wrapped to catch exceptions instead of throwing
  • MinMaxSumCount/Count aggregation has been removed
  • Empty aggregator is renamed to drop
  • Cumulative aggregations will not be aggressively dropped every collection cycle

Logs

  • A opentelemetry-sdk-logs-testing module has been added
  • SdkLogEmitterProvider is now available through OpenTelemetrySdk
  • LogDataBuilder can now take a SpanContext directly
  • SdkLogEmitterProvider.get convenience method added

AWS

  • HTTP requests now use OkHttp instead of the JDK

OpenCensus Shim

  • Shim span attributes are set before the span is created instead of after
  • Exceptions are not thrown when activating a null span

SDK Extensions

  • BREAKING CHANGE: Deprecated trace incubator types (DelegatingSpanData, SpanDataBuidler) have been removed
  • BREAKING CHANGE: Deprecated ExecutorServiceSpanProcessor has been removed
  • cloud.platform is now populated in AWS Resource
  • Auto-configuration correctly uses configured class loader for configuring Resource
  • Auto-configuration prints a debug log with the resolved tracer configuration
  • Auto-configuration supports the logs signal
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