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_CONTENT_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "dataplex.googleapis.com") used by MakeContentServiceConnection().
GOOGLE_CLOUD_CPP_DATAPLEX_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "dataplex.googleapis.com") used by MakeDataplexServiceConnection().
GOOGLE_CLOUD_CPP_METADATA_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "dataplex.googleapis.com") used by MakeMetadataServiceConnection().
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::TracingComponentsOptionGOOGLE_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 2025-03-05 UTC."],[[["This document provides version-specific documentation for the Dataplex C++ library, ranging from version 2.11.0 to 2.37.0-rc, including links to each version's dataplex-env details."],["Environment variables such as `GOOGLE_CLOUD_CPP_CONTENT_SERVICE_ENDPOINT`, `GOOGLE_CLOUD_CPP_DATAPLEX_SERVICE_ENDPOINT`, and `GOOGLE_CLOUD_CPP_METADATA_SERVICE_ENDPOINT` can be used to override the default endpoints for various Dataplex services."],["Tracing for gRPC calls can be enabled using the `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc` environment variable, allowing detailed monitoring of gRPC requests and responses, and requiring the setting of the `GOOGLE_CLOUD_CPP_ENABLE_CLOG` variable to see these logs."],["The `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` environment variable can be used to control how gRPC tracing behaves, such as whether messages are output on multiple lines or if string/bytes fields are truncated."],["The library's logging feature can be activated by setting `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes`, which enables output from the logging infrastructure, which otherwise has no backend to print anything."]]],[]]
