Correlation id

As explained in Cloud Observability in Action

A trace identifier is the identifier shared by spans belonging to one distributed request trace.

a_counter 42.0 # {traceID="a6427ef2021cce03"}

How Cloud Observability in Action covers it

How deep it goes

Defines propagation and correlation, but defers detailed span-emission implementation.

Examples

Demonstrates metric exemplars linking to Jaeger traces during an error-rate investigation.

What it assumes

Assumes basic familiarity with microservices, observability signals, metrics, logs, and distributed tracing terminology.

What you can do after

Diagnose distributed failures by navigating from a metric exemplar to traces and associated logs.

How it connects

Connects distributed tracing, spans, context propagation, metrics, logs, exemplars, Jaeger, and OpenMetrics.

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Also explained in

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  liveBookmanning.com
  Secure APIsA trace ID is an identifier shared by telemetry records belonging to the same request execution or distributed processing path.
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  liveBookmanning.com
  Go by ExampleA trace ID is an identifier that correlates processing and log records belonging to the same request or distributed operation.
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  liveBookmanning.com
  gRPC Microservices in GoA trace ID is an identifier that correlates all operations belonging to one distributed request.
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  liveBookmanning.com
  Kafka for ArchitectsA correlation ID is an identifier carried with related request and response messages so they can be matched.

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Related concepts

• trajectoryused by · A trajectory is an ordered sequence of states, actions, events, or operations that records or describes progression through successive steps or over time.
• request-response APIused by · A request-response API is an interaction pattern in which a requester sends a request to a provider and receives a corresponding response.
• loguses · A log is a record of events, activity, or diagnostic information produced during the operation of a system or process, often ordered by time.
• spanhas part · A span is a record of an individual operation within a trace, typically including its timing, context, outcome, and relationships to other operations.
• contextuses · In Go, context.Context is an interface carrying cancellation signals, deadlines, and request-scoped values across function and service boundaries.

This explainer was generated by Manning's knowledge graph from the text of Cloud Observability in Action. The section links point to the parts of the book it draws on.