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_NET_APP_ENDPOINT=... overrides the EndpointOption (which defaults to "netapp.googleapis.com") used by MakeNetAppConnection().
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 2025-03-05 UTC."],[[["The latest release candidate version for the NetApp C++ library is 2.37.0-rc, with the most recent stable release being 2.36.0, and a list of older releases down to 2.16.0 are available for reference."],["Environment variables can be used to customize library behavior, especially useful for troubleshooting, such as `GOOGLE_CLOUD_CPP_NET_APP_ENDPOINT` to override the default endpoint, and `GOOGLE_CLOUD_CPP_ENABLE_TRACING` to enable tracing for gRPC calls."],["Logging can be activated by setting `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes`, which enables the output of the logging infrastructure in the library."],["The `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` environment variable can be used to modify the behaviour of gRPC tracing."],["The `GOOGLE_CLOUD_PROJECT` environment variable can be used to set the default GCP project, but only impacts integration tests and examples, not the behavior of the library."]]],[]]
