Release v0.19.0

[MrAlias]

Added

• Added Marshaler config option to otlphttp to enable otlp over json or protobufs. (Add HTTP/JSON to the otlp exporter #1586)
• A ForceFlush method to the "go.opentelemetry.io/otel/sdk/trace".TracerProvider to flush all registered SpanProcessors. (Add ForceFlush method to TracerProvider #1608)
• Added WithSampler and WithSpanLimits to tracer provider. (Avoid overriding configuration of tracer provider #1633, Rename WithDefaultSampler TracerProvider option to WithSampler and update docs #1702)
• "go.opentelemetry.io/otel/trace".SpanContext now has a remote property, and IsRemote() predicate, that is true when the SpanContext has been extracted from remote context data. (Add flag to determine whether SpanContext is remote #1701)
• A Valid method to the "go.opentelemetry.io/otel/attribute".KeyValue type. (Comply with OpenTelemetry attributes specification #1703)

Changed

• trace.SpanContext is now immutable and has no exported fields. (Make SpanContext Immutable #1573)
  • trace.NewSpanContext() can be used in conjunction with the trace.SpanContextConfig struct to initialize a new SpanContext where all values are known.
• Update the ForceFlush method signature to the "go.opentelemetry.io/otel/sdk/trace".SpanProcessor to accept a context.Context and return an error. (Add ForceFlush method to TracerProvider #1608)
• Update the Shutdown method to the "go.opentelemetry.io/otel/sdk/trace".TracerProvider return an error on shutdown failure. (Add ForceFlush method to TracerProvider #1608)
• The SimpleSpanProcessor will now shut down the enclosed SpanExporter and gracefully ignore subsequent calls to OnEnd after Shutdown is called. (Update the SimpleSpanProcessor #1612)
• "go.opentelemetry.io/sdk/metric/controller.basic".WithPusher is replaced with WithExporter to provide consistent naming across project. (exporter: swap pusher for exporter #1656)
• Added non-empty string check for trace Attribute keys. (Add non-empty string check for attribute keys #1659)
• Add description to SpanStatus only when StatusCode is set to error. ( SpanStatus description set only when status code is set to Error #1662)
• Jaeger exporter falls back to resource.Default's service.name if the exported Span does not have one. (Populate Jaeger's Span.Process from Resource #1673)
• Jaeger exporter populates Jaeger's Span Process from Resource. (Populate Jaeger's Span.Process from Resource #1673)
• Renamed the LabelSet method of "go.opentelemetry.io/otel/sdk/resource".Resource to Set. (Rename resource pkg label vars and methods #1692)
• Changed WithSDK to WithSDKOptions to accept variadic arguments of TracerProviderOption type in go.opentelemetry.io/otel/exporters/trace/jaeger package. (sdk/trace: removing ApplyConfig and Config #1693)
• Changed WithSDK to WithSDKOptions to accept variadic arguments of TracerProviderOption type in go.opentelemetry.io/otel/exporters/trace/zipkin package. (sdk/trace: removing ApplyConfig and Config #1693)
• "go.opentelemetry.io/otel/sdk/resource".NewWithAttributes will now drop any invalid attributes passed. (Comply with OpenTelemetry attributes specification #1703)
• "go.opentelemetry.io/otel/sdk/resource".StringDetector will now error if the produced attribute is invalid. (Comply with OpenTelemetry attributes specification #1703)

Removed

• Removed serviceName parameter from Zipkin exporter and uses resource instead. (Zipkin exporter should take service.name from Resource #1549)
• Removed WithConfig from tracer provider to avoid overriding configuration. (Avoid overriding configuration of tracer provider #1633)
• Removed the exported SimpleSpanProcessor and BatchSpanProcessor structs.
  These are now returned as a SpanProcessor interface from their respective constructors. (Unexport the simple and batch SpanProcessors #1638)
• Removed WithRecord() from trace.SpanOption when creating a span. (Remove WithRecord() option from trace.SpanOption when starting a span #1660)
• Removed setting status to Error while recording an error as a span event in RecordError. (Removed setting error status while recording err as span event #1663)
• Removed jaeger.WithProcess configuration option. (Populate Jaeger's Span.Process from Resource #1673)
• Removed ApplyConfig method from "go.opentelemetry.io/otel/sdk/trace".TracerProvider and the now unneeded Config struct. (sdk/trace: removing ApplyConfig and Config #1693)

Fixed

• Jaeger Exporter: Ensure mapping between OTEL and Jaeger span data complies with the specification. (Jaeger Exporter: Fix minor mapping discrepancies #1626)
• SamplingResult.TraceState is correctly propagated to a newly created span's SpanContext. (Add tests for propagation of Sampler Tracestate changes #1655)
• The otel-collector example now correctly flushes metric events prior to shutting down the exporter. (Flush metric events prior to shutdown in OTLP example #1678)
• Do not set span status message in SpanStatusFromHTTPStatusCode if it can be inferred from http.status_code. (Span status from HTTP code: Do not set status message if it can be inferred #1681)
• Synchronization issues in global trace delegate implementation. (Fix synchronization issues in global trace delegate implementation #1686)
• Reduced excess memory usage by global TracerProvider. (Fix issue #1490, apply same logic as in the SDK #1687)

[codecov]

Codecov Report

Merging #1710 (df7d303) into main (4beb704) will not change coverage.
The diff coverage is 0.0%.

@@          Coverage Diff          @@
##            main   #1710   +/-   ##
=====================================
  Coverage   77.9%   77.9%           
=====================================
  Files        131     131           
  Lines       6997    6997           
=====================================
  Hits        5451    5451           
  Misses      1296    1296           
  Partials     250     250           

Impacted Files	Coverage Δ
version.go	0.0% <0.0%> (ø)

[XSAM]

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