A number of environment variables can be used to configure the behavior of the library. There are also functions to configure this behavior in code. The environment variables are convenient when troubleshooting problems.
Endpoint Overrides
GOOGLE_CLOUD_CPP_EXPORT_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "cloudprofiler.googleapis.com") used by MakeExportServiceConnection().
GOOGLE_CLOUD_CPP_PROFILER_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "cloudprofiler.googleapis.com") used by MakeProfilerServiceConnection().
GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc: turns on tracing for most gRPC calls. The library injects an additional Stub decorator that prints each gRPC request and response. Unless you have configured your own logging backend, you should also set GOOGLE_CLOUD_CPP_ENABLE_CLOG to produce any output on the program's console.
See Also
google::cloud::LoggingComponentsOptionGOOGLE_CLOUD_CPP_TRACING_OPTIONS=...: modifies the behavior of gRPC tracing, including whether messages will be output on multiple lines, or whether string/bytes fields will be truncated.
See Also
google::cloud::GrpcTracingOptionsOptionGOOGLE_CLOUD_CPP_ENABLE_CLOG=yes: turns on logging in the library, basically the library always "logs" but the logging infrastructure has no backend to actually print anything until the application sets a backend or they set this environment variable.
[[["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 2025-03-21 UTC."],[[["This page details environment variables and configurations for the C++ Profiler library, with the latest version being 2.37.0-rc."],["Environment variables can be utilized to configure the library's behavior, offering a convenient way to troubleshoot issues."],["`GOOGLE_CLOUD_CPP_EXPORT_SERVICE_ENDPOINT` and `GOOGLE_CLOUD_CPP_PROFILER_SERVICE_ENDPOINT` environment variables allow for overriding the default endpoints for service connections."],["Tracing of gRPC calls can be enabled via `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, which logs requests and responses, while `GOOGLE_CLOUD_CPP_ENABLE_CLOG` is used to enable output on the program's console."],["`GOOGLE_CLOUD_CPP_TRACING_OPTIONS` can be used to modify the behaviour of gRPC tracing, such as whether messages will be displayed on multiple lines, or whether string/bytes fields will be truncated."]]],[]]
