how to Stop an Azure Function from logging the “Executing” and “Executed” messages

Question

how to Stop an Azure Function from logging the “Executing” and “Executed” messages

chandan jha 6

I'm using host.json and I have configured the log level error, but still I'm seeing the trace log. Could you please guide me how to stop the trace.
{
"version": "2.0",
"logging": {
"logLevel": {
"Function.MyFunction": "Information",
"default": "Error",
"Function": "Error",
"Host.Aggregator": "Error",
"Host.Results": "Error",
"Host.Executor": "Error"
},
"extensionBundle": {
"id": "Microsoft.Azure.Functions.ExtensionBundle",
"version": "[1.*, 2.0.0)"
}
}
}

2 answers

Your answer

Answer 1

JayaC-MSFT 5,606

Hello @chandan jha I have tried with this simple configuration and it works for me :

"logging": {  
    "logLevel": {  
      "Function.MyFunctionName.User": "Information",  
      "Function": "Error"  
    }  
  }

Please let me know if this helps.

Siddarth Pattnaik 1 Reputation point

2022-07-06T11:02:51.63+00:00

Hello @JayaC-MSFT , I used the above configuration but I'm getting my custom logs twice, Once in the desired format and once in the standard logging format. Please refer to the below screenshot. I'm using python-json-logger for structured logging. When I log my information, I get the JSON logs and also in standard log format.

Here's my sample code,

Answer 2

Richard Barraclough 11

I've tried all of these and I'm still getting spammed.

I don't understand what to put on the left hand side of the :. Is it the namespace and class name and method name or is Function or maybe Functions a special magic word? And where did .User come from?

      "Namespace.CalculationsService.Functions.HealthFunction": "Warning",
      "Namespace.CalculationsService.Functions.HealthFunction.Health": "Warning",
      "Functions.Health": "Warning",
      "Function.Health": "Warning",
      "Health": "Warning"

Jordan Chang 0 Reputation points

2024-05-29T21:02:51.3366667+00:00

I am running to the same problem. This doesn't work for me. I see "Executing..." and "Executed..." logs in my Console and also in App Insights. I'm on Azure Functions v4.
Deswal, Ankur (Hyderabad) 0 Reputation points

2025-01-17T15:22:52.4466667+00:00

Running into the same problem, Did you guys find a solution for it?

Richard Barraclough 11

I can't remember now -- it's been a while and I work on lots of things other than AzureFunctions.

I remember making this:

    internal class CustomTelemetryProcessor : ITelemetryProcessor
    {
        private readonly ITelemetryProcessor _next;
        public PrestwoodTelemetryProcessor(ITelemetryProcessor next)
        {
            _next = next;
        }
        public void Process(ITelemetry item)
        {
            if (item is DependencyTelemetry) { return; }
            if (item is MetricTelemetry) { return; }
            //if (item is PerformanceCounterTelemetry) { return; }
            if (item is MetricTelemetry) { return; }
            if (item is RequestTelemetry)
            {
                // The Host.Results messages seem not to come through here.
                RequestTelemetry rt = (RequestTelemetry)item;
                if (rt.Name.ToLower().Contains("health")) { return; }
            }
            _next.Process(item);
        }
    }

And registering it

        z.AddApplicationInsightsTelemetryWorkerService();
        z.AddApplicationInsightsTelemetryProcessor<CustomTelemetryProcessor>();

Share via

how to Stop an Azure Function from logging the “Executing” and “Executed” messages

2 answers

Your answer