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::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 AlloyDB C++ library, with version 2.37.0-rc being the latest release candidate and 2.11.0 being the oldest documented release."],["Environment variables, such as `GOOGLE_CLOUD_CPP_ALLOY_DB_ADMIN_ENDPOINT`, can be used to override default settings like the AlloyDB endpoint, useful for troubleshooting and configuration."],["Tracing of gRPC calls can be enabled via the `GOOGLE_CLOUD_CPP_ENABLE_TRACING` environment variable, which will print each gRPC request and response, and the behavior of gRPC tracing can be modified by using `GOOGLE_CLOUD_CPP_TRACING_OPTIONS`."],["The `GOOGLE_CLOUD_CPP_ENABLE_CLOG` variable activates logging output to the console, and the library supports custom logging backends through `google::cloud::LogBackend`."],["`GOOGLE_CLOUD_PROJECT` can be set to specify the default GCP project, primarily for examples and integration tests, as it does not have any effect within the library itself."]]],[]]
