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 2025-03-21 UTC."],[[["This document outlines environment variables and settings for configuring the behavior of the Storage Insights C++ library, specifically covering version 2.13.0 and onwards."],["The latest version available is 2.37.0-rc, with a list of past versions from 2.36.0 down to 2.11.0 provided for reference, with each having its own associated page."],["Environment variables can be used to adjust library settings, such as overriding the default endpoint using `GOOGLE_CLOUD_CPP_STORAGE_INSIGHTS_ENDPOINT`, or enabling gRPC call tracing with `GOOGLE_CLOUD_CPP_ENABLE_TRACING`."],["The `GOOGLE_CLOUD_CPP_ENABLE_CLOG` environment variable controls whether the library logs to the console, while `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` changes the formatting and truncation of tracing output."],["The environment variable `GOOGLE_CLOUD_PROJECT` is only used for examples and integration testing, and will not affect the operation of the library itself."]]],[]]
