检测dotnet core 2控制台应用程序时无法捕获跟踪 [英] can't capture traces when instrumenting dotnet core 2 console app

问题描述

我可以看到来自TelemetryClient的信息，但不能看到ILogger捕获的信息.

I can see the information from TelemetryClient but I can`t those captured by ILogger.

public class Program
{
	static IConfiguration _configuration;

	static void Main(string[] args)
	{
		var environmentName = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");

		IConfigurationBuilder builder = new ConfigurationBuilder();

		_configuration = Configure(builder, environmentName);

		var instrumentationKey = _configuration["ApplicationInsights:InstrumentationKey"];

		ILoggerFactory loggerFactory = new LoggerFactory();

		var config = new JobHostConfiguration();
		config.DashboardConnectionString = "xxxx";
		config.LoggerFactory = loggerFactory
			.AddApplicationInsights(instrumentationKey, null)
			.AddConsole();

		var host = new JobHost(config);
		host.CallAsync(typeof(Functions).GetMethod("ProcessMethod"));
		host.RunAndBlock();            
	}

	private static IConfiguration Configure(IConfigurationBuilder config, string environmentName)
	{
		return config
			.SetBasePath(Directory.GetCurrentDirectory())
			.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
			.AddJsonFile($"appsettings.{environmentName}.json", optional: true, reloadOnChange: true)
			.AddEnvironmentVariables()
			.Build();
	}

}



public class Functions
{
	[NoAutomaticTrigger]
	public static async Task ProcessMethod(ILogger log)
	{
		TelemetryClient client = new TelemetryClient();

		client.InstrumentationKey = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx";

		while (true)
		{
			// Do something.      

			log.LogTrace($"ILogger.LogTrace - ILogger.LogTrace");
			client.TrackTrace($"TrackTrace TelemetryClient - TrackTrace TelemetryClient");
			client.Flush();

			Console.WriteLine("This ProcessMethod method is executed");			await Task.Delay(TimeSpan.FromMinutes(1));
		}
	}
}

any tips?

any tips?

---

Thiago Custodio |软件工程师
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Thiago Custodio | Software Engineer
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推荐答案

当前不支持在Console App中从ILogger读取跟踪.仅常规Asp.Net Core应用程序支持.

Reading traces from ILogger in Console App is not currently supported. It is supported in regular Asp.Net Core apps only.

以下是跟踪此问题的问题:我们很可能将Ilogger适配器移到Asp.net Core程序包之外，以便与控制台应用程序一起使用.尚无预计到达时间，但很可能在接下来的2-3个月内.

The following is the issue tracking this: We are likely to move the Ilogger adaptor outside of the Asp.net Core package, so as to enable using it with console apps. No ETA yet, but likely in the next 2-3 months.

https://github.com/Microsoft/ApplicationInsights-aspnetcore/issues/507

https://github.com/Microsoft/ApplicationInsights-aspnetcore/issues/507

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