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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_STORAGE_INSIGHTS_ENDPOINT=... overrides the EndpointOption (which defaults to "storageinsights.googleapis.com") used by MakeStorageInsightsConnection().
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 2025-04-22 UTC."],[[["The latest release candidate version is 2.37.0-rc, with the most recent stable release being version 2.36.0, and the oldest version listed is 2.11.0."],["Environment variables can be used to customize the library's behavior, or settings can be changed directly within the code itself."],["The `GOOGLE_CLOUD_CPP_STORAGE_INSIGHTS_ENDPOINT` variable can be utilized to override the default endpoint used by `MakeStorageInsightsConnection()`."],["Tracing of gRPC calls can be enabled via `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, and you can set `GOOGLE_CLOUD_CPP_ENABLE_CLOG` to produce output to the program's console, if no other logging is configured."],["The `GOOGLE_CLOUD_PROJECT` environment variable can be used to set the default GCP project in examples and tests, but it does not affect library behavior."]]],[]]
