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.Net: Create a classifiable Kernel Function logger #6011

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.Net: Create a classifiable Kernel Function logger #6011

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.Net: Create a classifiable Kernel Function logger
feiyun0112 Apr 26, 2024
d715d92
Update dotnet/src/SemanticKernel.Abstractions/Functions/KernelFunctio…
feiyun0112 Apr 30, 2024
3208823
Update KernelFunction.cs
feiyun0112 Apr 30, 2024
bb0911c
Merge branch 'main' into issues-5989
markwallace-microsoft May 27, 2024
522666b
Merge branch 'main' into issues-5989
feiyun0112 May 28, 2024
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4 changes: 2 additions & 2 deletions dotnet/src/SemanticKernel.Abstractions/Functions/KernelFunction.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -157,7 +157,7 @@ public async Task<FunctionResult> InvokeAsync(
Verify.NotNull(kernel);

using var activity = s_activitySource.StartActivity(this.Name);
ILogger logger = kernel.LoggerFactory.CreateLogger(this.Name) ?? NullLogger.Instance;
ILogger logger = kernel.LoggerFactory.CreateLogger($"{this.GetType()}.{this.Name}") ?? NullLogger.Instance;
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  1. This means that the implementation detail of the internal derived type's name will end up showing up in logging. That name could easily change. Is this desirable?
  2. We don't need to allocate a new string on each invocation. It can be cached once and then used on each access. That also avoids the duplication between InvokeAsync and InvokeStreamingAsync.

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  1. This means that the implementation detail of the internal derived type's name will end up showing up in logging. That name could easily change. Is this desirable?

I think we want to avoid creating logger with name based on function name, because in this case the number of different loggers created will be equal to number of different functions users execute.

Having Microsoft.SemanticKernel.KernelFunction logger name and specific logs like this._logger.LogInformation("Start function execution: {PluginName}-{FunctionName}", this.PluginName, this.Name"); should be enough, and it will be possible to filter logs by FunctionName property in monitoring tool.


// Ensure arguments are initialized.
arguments ??= [];
Expand Down Expand Up @@ -283,7 +283,7 @@ public async IAsyncEnumerable<TResult> InvokeStreamingAsync<TResult>(
Verify.NotNull(kernel);

using var activity = s_activitySource.StartActivity(this.Name);
ILogger logger = kernel.LoggerFactory.CreateLogger(this.Name) ?? NullLogger.Instance;
ILogger logger = kernel.LoggerFactory.CreateLogger($"{this.GetType()}.{this.Name}") ?? NullLogger.Instance;

arguments ??= [];
logger.LogFunctionStreamingInvoking(this.Name);
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