Package openconsensus.trace

API for distributed tracing.

See: Description

Interface Summary

Interface	Description
Span	An interface that represents a span.
Span.Builder	Span.Builder is used to construct Span instances which define arbitrary scopes of code that are sampled for distributed tracing as a single atomic unit.
Tracer	Tracer is a simple, interface for Span creation and in-process context interaction.

Class Summary

Class	Description
AttributeValue	A class that represents all the possible values for an attribute.
BlankSpan	The BlankSpan is a singleton class, which is the default Span that is used when no Span implementation is available.
Event	A text annotation with a set of attributes.
Link	A link to a Span from a different trace.
NoopTrace	No-op implementations of trace classes.
Sampler	Sampler is used to make decisions on Span sampling.
SpanContext	A class that represents a span context.
SpanData	Immutable representation of all data collected by the Span class.
SpanData.TimedEvent	A timed event representation.
SpanData.Timestamp	A representation of an instant in time.
SpanId	A class that represents a span identifier.
Status	Defines the status of a Span by providing a standard Status.CanonicalCode in conjunction with an optional descriptive message.
Trace	Class that manages a global instance of the Tracer.
TraceId	A class that represents a trace identifier.
TraceOptions	A class that represents global trace options.
TraceOptions.Builder	Builder class for TraceOptions.
Tracestate	Carries tracing-system specific context in a list of key-value pairs.
Tracestate.Builder	Builder class for Tracestate.
Tracestate.Entry	Immutable key-value pair for Tracestate.

Enum Summary

Enum	Description
AttributeValue.Type	An enum that represents all the possible value types for an AttributeValue.
Span.Kind	Type of span.
Status.CanonicalCode	The set of canonical status codes.

Package openconsensus.trace Description

API for distributed tracing.

Distributed tracing, also called distributed request tracing, is a technique that helps debugging distributed applications.

Trace represents a tree of spans. A trace has a root span that encapsulates all the spans from start to end, and the children spans being the distinct calls invoked in between.

Span represents a single operation within a trace.

Spans are propagated in-process in the io.grpc.Context and between process using one of the wire propagation formats supported in the openconsensus.trace.propagation package.