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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 OverridesGOOGLE_CLOUD_CPP_ALERT_POLICY_SERVICE_ENDPOINT=...
overrides the EndpointOption
(which defaults to "monitoring.googleapis.com") used by MakeAlertPolicyServiceConnection()
.GOOGLE_CLOUD_CPP_DASHBOARDS_SERVICE_ENDPOINT=...
overrides the EndpointOption
(which defaults to "monitoring.googleapis.com") used by MakeDashboardsServiceConnection()
.GOOGLE_CLOUD_CPP_GROUP_SERVICE_ENDPOINT=...
overrides the EndpointOption
(which defaults to "monitoring.googleapis.com") used by MakeGroupServiceConnection()
.GOOGLE_CLOUD_CPP_METRICS_SCOPES_ENDPOINT=...
overrides the EndpointOption
(which defaults to "monitoring.googleapis.com") used by MakeMetricsScopesConnection()
.GOOGLE_CLOUD_CPP_METRIC_SERVICE_ENDPOINT=...
overrides the EndpointOption
(which defaults to "monitoring.googleapis.com") used by MakeMetricServiceConnection()
.GOOGLE_CLOUD_CPP_NOTIFICATION_CHANNEL_SERVICE_ENDPOINT=...
overrides the EndpointOption
(which defaults to "monitoring.googleapis.com") used by MakeNotificationChannelServiceConnection()
.GOOGLE_CLOUD_CPP_QUERY_SERVICE_ENDPOINT=...
overrides the EndpointOption
(which defaults to "monitoring.googleapis.com") used by MakeQueryServiceConnection()
.GOOGLE_CLOUD_CPP_SERVICE_MONITORING_SERVICE_ENDPOINT=...
overrides the EndpointOption
(which defaults to "monitoring.googleapis.com") used by MakeServiceMonitoringServiceConnection()
.GOOGLE_CLOUD_CPP_UPTIME_CHECK_SERVICE_ENDPOINT=...
overrides the EndpointOption
(which defaults to "monitoring.googleapis.com") used by MakeUptimeCheckServiceConnection()
.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.
google::cloud::TracingComponentsOption
GOOGLE_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.
google::cloud::GrpcTracingOptionsOption
GOOGLE_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.
GOOGLE_CLOUD_PROJECT=...
: is used in examples and integration tests to configure the GCP project. This has no effect in the library.
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Last updated 2025-08-14 UTC.
[[["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 2025-08-14 UTC."],[[["This document details environment variables and functions for configuring the behavior of the monitoring library, primarily used for troubleshooting."],["The latest version available is 2.37.0-rc, with a range of versions provided down to 2.11.0, including links to access specific version documentation."],["Multiple endpoint overrides are available using environment variables like `GOOGLE_CLOUD_CPP_ALERT_POLICY_SERVICE_ENDPOINT` to specify service-specific endpoints."],["Logging and tracing can be enabled via environment variables like `GOOGLE_CLOUD_CPP_ENABLE_TRACING` and `GOOGLE_CLOUD_CPP_ENABLE_CLOG`, allowing for detailed monitoring of gRPC calls and general library logging output."],["Setting the default project uses the environment variable `GOOGLE_CLOUD_PROJECT`, but only affects examples and integration tests, not the core library functionality."]]],[]]
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