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_ALLOY_DB_ADMIN_ENDPOINT=... overrides the EndpointOption (which defaults to "alloydb.googleapis.com") used by MakeAlloyDBAdminConnection().
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 2025-03-14 UTC."],[[["The latest version of the AlloyDB environment is `2.37.0-rc`, with previous versions ranging from `2.36.0` down to `2.11.0` also being accessible."],["Environment variables can be used to configure the behavior of the library, especially useful when troubleshooting issues, with functions also available to configure this behavior directly in the code."],["The `GOOGLE_CLOUD_CPP_ALLOY_DB_ADMIN_ENDPOINT` environment variable can override the default endpoint used by `MakeAlloyDBAdminConnection()`, which is `alloydb.googleapis.com`."],["Tracing for gRPC calls can be enabled using `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, and logging output can be directed to the program's console by also setting `GOOGLE_CLOUD_CPP_ENABLE_CLOG`."],["The `GOOGLE_CLOUD_PROJECT` environment variable is used to configure the GCP project in examples and integration tests but does not directly affect the library's functionality."]]],[]]
