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 latest version available is 2.37.0-rc, with numerous older versions, starting at 2.36.0 and going all the way to 2.10.1, available for browsing."],["This documentation pertains to the `OpenTelemetryTracingOption`, which enables the client library to generate distributed traces using the global tracer provider."],["Compiling the library with OpenTelemetry is a prerequisite for the `OpenTelemetryTracingOption` to take effect and generate traces."],["Enabling tracing does not export traces automatically, and the global tracer provider must be configured to export them, such as by using `#google::cloud::otel::ConfigureBasicTracing()`."],["Tracing can be toggled with the `GOOGLE_CLOUD_CPP_OPENTELEMETRY_TRACING` environment variable, where a non-empty value will enable tracing with OpenTelemetry."]]],[]]
