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_RAPID_MIGRATION_ASSESSMENT_ENDPOINT=... overrides the EndpointOption (which defaults to "rapidmigrationassessment.googleapis.com") used by MakeRapidMigrationAssessmentConnection().
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 2025-03-14 UTC."],[[["The latest release candidate version for Rapid Migration Assessment is 2.37.0-rc, which can be accessed via the provided link."],["This document outlines the available versions of Rapid Migration Assessment, starting from 2.37.0-rc and going down to version 2.13.0."],["Environment variables like `GOOGLE_CLOUD_CPP_RAPID_MIGRATION_ASSESSMENT_ENDPOINT` can override the default endpoint, and variables such as `GOOGLE_CLOUD_CPP_ENABLE_TRACING` are available for logging and troubleshooting."],["Using `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` turns on logging within the library, which allows the printing of any logged information to the console."],["While `GOOGLE_CLOUD_PROJECT` configures the GCP project in examples, it does not impact the behavior of the library itself."]]],[]]
