Setting this option enables the generation of traces by the client library. The library uses the global tracer provider to generate traces.
To create a client that traces, this option must be provided to the Make*Connection(...) factory functions. It does not have an effect when passed to a client's constructor. If you use custom credentials, this option must also be provided to the Make*Credentials(...) factory functions in order to trace the authentication components.
Exporting traces
Providing this option only enables the generation of traces. It does not enable the export of traces.
In order to export the traces, the application must set the global tracer provider. The client library recommends using #google::cloud::otel::ConfigureBasicTracing() to configure the global tracer provider. This will send the traces generated by the client library to Cloud Trace, Google Cloud's visualizer for distributed traces.
This option is controlled by the GOOGLE_CLOUD_CPP_OPENTELEMETRY_TRACING environment variable. If the environment variable is set to a non-empty value, tracing with OpenTelemetry is enabled.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-05 UTC."],[[["The webpage documents versions of `OpenTelemetryTracingOption` for tracing client library activity using OpenTelemetry, from the latest release candidate (2.37.0-rc) down to version 2.10.1."],["Enabling this option allows the client library to generate traces, leveraging the global tracer provider."],["The `OpenTelemetryTracingOption` requires the library to be compiled with OpenTelemetry to function, as outlined in the provided quickstart documentation."],["While the option enables trace generation, exporting the traces requires configuring the global tracer provider, preferably using `#google::cloud::otel::ConfigureBasicTracing()` to send the traces to Cloud Trace."],["Tracing can be toggled on or off using the `GOOGLE_CLOUD_CPP_OPENTELEMETRY_TRACING` environment variable."]]],[]]
