Microsoft has really been pushing Application Insights in the Azure Functions space, to the point where you know can’t see individual function invocations without having Application Insights enabled. In cases where we’re already logging to another logging service (e.g. Splunk), the config below has been useful to maintain the invocation output, but otherwise minimize Application Insights transaction volume, thereby minimizing cost.
{
"version": "2.0",
"logging": {
"logLevel": {
"default": "Warning",
"Function": "Warning",
"Host.Aggregator": "Warning",
"Host.Results": "Information",
"Microsoft": "Warning"
},
"applicationInsights": {
"enableLiveMetrics": false,
"enableDependencyTracking": false,
"enablePerformanceCountersCollection": false,
"samplingSettings": {
"isEnabled": true,
"excludedTypes": "Request"
},
"enableLiveMetricsFilters": true
}
}
}
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