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_BACKUP_FOR_GKE_ENDPOINT=... overrides the EndpointOption (which defaults to "gkebackup.googleapis.com") used by MakeBackupForGKEConnection().
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."],[[["Version 2.37.0-rc is the latest release candidate, with links provided for various previous versions ranging from 2.36.0 down to 2.12.0."],["Environment variables can be utilized to adjust the library's behavior, especially when troubleshooting, and functions within the code also allow for configuration."],["The `GOOGLE_CLOUD_CPP_BACKUP_FOR_GKE_ENDPOINT` variable is available for overriding the default endpoint used by `MakeBackupForGKEConnection()`."],["Logging can be activated using `GOOGLE_CLOUD_CPP_ENABLE_TRACING` and `GOOGLE_CLOUD_CPP_ENABLE_CLOG` to help monitor gRPC calls and print output to the console, respectively."],["The `GOOGLE_CLOUD_PROJECT` environment variable is used in examples and integration tests to configure the GCP project, but does not directly impact the library's functions."]]],[]]
