open-telemetry/opentelemetry-dotnet core-1.7.0-rc.1

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OpenTelemetry

• The AddService ResourceBuilder extension method will now generate the same service.instance.id for the lifetime of a process when autoGenerateServiceInstanceId is true. (#4988)

• Fixed a Metrics SDK bug which led to ExemplarReservoir.Offer always being called regardless of whether or not the ExemplarFilter sampled the measurement. (#5004) (#5016)

• Update Metrics SDK to override the default histogram buckets for the followingmetrics from ASP.NET Core and HttpClient runtime:

  • signalr.server.connection.duration
  • kestrel.connection.duration
  • http.client.connection.duration

  These histogram metrics which have their Unit as s (second) will have their default histogram buckets as [ 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, 30, 60, 120, 300 ]. (#5008) (#5021)

• Remove the bucket with value 0 for histogram buckets for all metrics from ASP.NET Core and HttpClient. (#5021)

• Updated Microsoft.Extensions.Logging.Configuration package version to 8.0.0. (#5051)

• Updated Microsoft.Extensions.Logging package version to 8.0.0. (#5051)

• Revert the default behavior of Metrics SDK for Delta aggregation. It would not reclaim unused Metric Points by default. You can enable the SDK to reclaim unused Metric Points by setting the environment variable OTEL_DOTNET_EXPERIMENTAL_METRICS_RECLAIM_UNUSED_METRIC_POINTS to true before setting up the MeterProvider. (#5052)

• Update Metrics SDK to override the default histogram buckets for ASP.NET (.NET Framework).

  Histogram metrics for the meter name OpenTelemetry.Instrumentation.AspNet and instrument name http.request.server.duration which have their Unit as s (second) will have their default histogram buckets as [ 0.005, 0.01, 0.025, 0.05, 0.075, 0.1, 0.25, 0.5, 0.75, 1, 2.5, 5, 7.5, 10 ]. (#5063)

• Added AddProcessor overload on OpenTelemetryLoggerOptions which exposes the factory pattern (Func<IServiceProvider, BaseProcessor<LogRecord>> implementationFactory). (#4916)

• Add support for Instrumentation Scope Attributes (i.e Meter Tags), fixing issue #4563. (#5089)

• Added the ILoggingBuilder.UseOpenTelemetry experimental API extension for registering OpenTelemetry ILogger integration using LoggerProviderBuilder which supports the full DI (IServiceCollection \ IServiceProvider) API surface (mirrors tracing & metrics). (#5072)

• Changed the ILoggingBuilder registration extensions (AddOpenTelemetry & UseOpenTelemetry) to fire the optional OpenTelemetryLoggerOptions configuration delegate AFTER the "Logging:OpenTelemetry" IConfiguration section has been applied. (#5072)

OpenTelemetry.Api

• Updated System.Diagnostics.DiagnosticSource package version to 8.0.0. (#5051)

OpenTelemetry.Api.ProviderBuilderExtensions

• Updated Microsoft.Extensions.DependencyInjection.Abstractions package version to 8.0.0. (#5051)

OpenTelemetry.Exporter.Console

• Add support for Instrumentation Scope Attributes (i.e Meter Tags), fixing issue #4563. (#5089)

OpenTelemetry.Exporter.OpenTelemetryProtocol

• Made OpenTelemetry.Exporter.OtlpLogExporter public. (#4979)

• Updated the OpenTelemetryLoggerOptions.AddOtlpExporter extension to retrieve OtlpExporterOptions and LogRecordExportProcessorOptions using the IServiceProvider / Options API so that they can be controlled via IConfiguration (similar to metrics and traces). (#4916)

• Added an OpenTelemetryLoggerOptions.AddOtlpExporter extension overload which accepts a name parameter to support named options. (#4916)

• Add support for Instrumentation Scope Attributes (i.e Meter Tags),
  fixing issue #4563. (#5089)

OpenTelemetry.Extensions.Hosting

• Updated Microsoft.Extensions.Hosting.Abstractions package version to 8.0.0. (#5051)

• The OpenTelemetryBuilder.WithMetrics method will now register an IMetricsListener named 'OpenTelemetry' into the IServiceCollection to enable metric management via the new Microsoft.Extensions.Diagnostics .NET 8 APIs. (#4958)

• The OpenTelemetryBuilder.WithLogging experimental API method will now register an ILoggerProvider named 'OpenTelemetry' into the IServiceCollection to enable ILoggerFactory integration. (#5072)