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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_CLOUD_SCHEDULER_ENDPOINT=... overrides the EndpointOption (which defaults to "cloudscheduler.googleapis.com") used by MakeCloudSchedulerConnection().
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 2025-04-02 UTC."],[[["This document provides environment variable configurations for the Cloud Scheduler C++ library, spanning versions from 2.11.0 to 2.37.0-rc (latest)."],["The `GOOGLE_CLOUD_CPP_CLOUD_SCHEDULER_ENDPOINT` environment variable can be used to override the default endpoint used by `MakeCloudSchedulerConnection()`."],["Tracing of gRPC calls can be enabled using `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, and logging can be enabled with `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes`."],["The `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` environment variable provides options for modifying gRPC tracing behaviors, such as the formatting and truncation of messages."],["The `GOOGLE_CLOUD_PROJECT` environment variable is used in examples and tests to set the GCP project but does not affect the library itself."]]],[]]
