在 Azure Application Insights 中找不到 OpenTelemetry 标签和事件

Question

我有一个示例 ASP.NET Core 6 Web 服务，它配置为使用 OpenTelemetry 和 Azure Monitor，如下所示：

// Program.cs.
using Azure.Monitor.OpenTelemetry.AspNetCore;
using OpenTelemetry.Resources;
using OpenTelemetry.Trace;

var resourceAttributes = new Dictionary<string, object> {
    { "service.name", "my-service" },
    { "service.namespace", "my-namespace" },
    { "service.instance.id", "my-instance" }};

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddOpenTelemetry().UseAzureMonitor(options => {
    options.ConnectionString = "<my-connection-string>";
});
builder.Services.ConfigureOpenTelemetryTracerProvider((sp, builder) => {
    builder.ConfigureResource(resourceBuilder => resourceBuilder.AddAttributes(resourceAttributes));
});

// Add services to the container.

builder.Services.AddControllersWithViews();

var app = builder.Build();

// The rest of the logic.

然后这是我的控制器的方法：

        [HttpGet]
        public IEnumerable<WeatherForecast> Get()
        {
            _logger.LogInformation($"my-weather-{(Random.Shared.Next(1, 99)):00}");

            using (var activity = WeatherActivities.MainSource.StartActivity("Weather.Random"))
            {
                _logger.LogInformation("my-weather-inside-activity!");
                activity?.SetTag("my-tag", Random.Shared.Next(1, 99));
                activity?.AddEvent(new ActivityEvent("my-activity-event"));

                return Enumerable.Range(1, 5).Select(index => new WeatherForecast
                {
                    Date = DateTime.Now.AddDays(index),
                    TemperatureC = Random.Shared.Next(-20, 55),
                    Summary = Summaries[Random.Shared.Next(Summaries.Length)]
                })
                .ToArray();
            }
        }

当我点击该服务时，调用

_logger.LogInformation()

发出的信息将登陆 Azure Monitor 并可以查询。我找不到

activity?.SetTag()

和

activity.AddEvent()

调用中记录的信息。我也不确定如何查找活动源名称或资源属性。感觉好像因为某种原因没有发送。

我尝试了以下查询但没有成功：

union dependencies, traces | where customDimensions["my-tag"] != ""
customEvents | where name == "my-activity-event"

我错过了什么？预先感谢！

Answer 1

不幸的是，

Custom Event

目前不支持

OpenTelemetry

，仅支持

custom metric

、

dependency

、

Exception

和

Resquest

。 如需参考，请查看此Microsoft 文档。

我在应用程序 Insights 中遵循了此 Microsoft document for

Opentelemetry

，它对我有用。

我在 VS 2022 中创建了一个示例

ASP.NET Core Web App

。

Program.cs

:

using Azure.Monitor.OpenTelemetry.AspNetCore;
 
var builder = WebApplication.CreateBuilder(args);

builder.Services.AddOpenTelemetry().UseAzureMonitor();

// Add services to the container.
builder.Services.AddControllersWithViews();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Home/Error");
    app.UseHsts();
}

app.UseHttpsRedirection();
app.UseStaticFiles();

app.UseRouting();

app.UseAuthorization();

app.MapControllerRoute(
    name: "default",
    pattern: "{controller=Home}/{action=Index}/{id?}");

app.Run();

OUTPUT

: