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."],[[["The latest release candidate version for AlloyDB is 2.37.0-rc, followed by stable versions ranging from 2.36.0 down to 2.11.0, with links provided for each version's documentation."],["Environment variables are a way to configure the library's behavior and can be particularly useful for troubleshooting, with the possibility to override default endpoints via `GOOGLE_CLOUD_CPP_ALLOY_DB_ADMIN_ENDPOINT`."],["Tracing for gRPC calls can be enabled by setting `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, and for outputting to the console, `GOOGLE_CLOUD_CPP_ENABLE_CLOG` also needs to be set."],["The behavior of gRPC tracing can be further customized using the `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` environment variable."],["Setting `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` activates the library's logging system to output logs."]]],[]]
