CODEWITHSUNDEEP
azureazure-functionsazure-monitoring
MrPanucci
MrPanucci

Reputation: 587

How do I view Azure Function host start up time in Azure?

I'd like to know how long the Azure host is taking to start up when instances are added to serve requests. When running locally the runtime summarizes the start up time next to the "host start" log. I'm not able to see this anywhere in Azure AFAIK.

Upvotes: 2

Views: 249

Answers (1)

Peter Bons
Peter Bons

Reputation: 29770

Best to query the underlying integrated Application Insights resource:

traces
| where customDimensions.Category == "Host.Startup"

11/30/2020, 7:34:24.132 AM Initializing Host. OperationId: '03640da2-e000-4af1-8e87-d83382d94347'. 11/30/2020, 7:34:24.147 AM Host initialization: ConsecutiveErrors=0, StartupCount=1, OperationId=03640da2-e000-4af1-8e87-d83382d94347
11/30/2020, 7:34:26.877 AM Starting Host (HostId=nb001681-725949297, InstanceId=745ced93-4234-4ca3-b998-1e6b0af234a0, Version=3.0.14916.0, ProcessId=9196, AppDomainId=1, InDebugMode=False, InDiagnosticMode=False, FunctionsExtensionVersion=(null)) 11/30/2020, 7:34:26.915 AM Loading functions metadata
11/30/2020, 7:34:26.946 AM 2 functions loaded
11/30/2020, 7:34:27.070 AM Generating 2 job function(s)
11/30/2020, 7:34:27.181 AM Found the following functions: FunctionApp.Function1.Run FunctionApp.HttpTriggered.Run
11/30/2020, 7:34:27.229 AM Host initialized (331ms)
11/30/2020, 7:34:27.250 AM Host started (355ms)
11/30/2020, 7:34:27.256 AM Job host started

Upvotes: 2

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