ApplicationInsights OperationId 为空

我正在实现自定义 ApplicationInsights 记录器，并且能够在跟踪、异常和请求等写入位置写入所有日志，但跟踪和异常中的 OperationId 为空。

昨天我使用相同的代码并在所有表中获取OperationId。之后我玩了多线程场景，但效果不佳。现在我再次开始使用简单的代码，但看不到OperationId。

我的代码有什么问题吗？

public static class Function2
{
    private static TelemetryClient telemetryClient = new TelemetryClient(new Microsoft.ApplicationInsights.Extensibility.TelemetryConfiguration
    {
        InstrumentationKey = "********-****-********-****"
    });

    [FunctionName("Function2")]
    public static HttpResponseMessage Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = null)]HttpRequestMessage req)
    {
        RequestTelemetry requestTelemetry = new RequestTelemetry { Name = "Function2" };
        var operation = telemetryClient.StartOperation(requestTelemetry);

        telemetryClient.TrackTrace("trace message", SeverityLevel.Error);
        telemetryClient.TrackException(new System.Exception("My custom exception"));


        operation.Telemetry.Success = true;
        telemetryClient.StopOperation(operation);

        return req.CreateResponse(HttpStatusCode.OK, "Hello ");
    }
}

这个问题非常棘手，这是由于仪器密钥设置造成的。 如果你使用Microsoft.ApplicationInsights.Extensibility.TelemetryConfiguration（您在代码中使用）设置检测密钥，然后应用程序见解中不会出现 operation_id 。

因此，请使用这行代码来设置检测密钥：

TelemetryClient telemetryClient = new TelemetryClient() { InstrumentationKey = "your_key" };

我的示例代码如下，仅更改instrumentation key设置方法：

public static class Function1
{

    private static TelemetryClient telemetryClient = new TelemetryClient() { InstrumentationKey = "your_key" };

    [FunctionName("Function2")]
    public static HttpResponseMessage Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = null)]HttpRequestMessage req)
    {
        RequestTelemetry requestTelemetry = new RequestTelemetry { Name = "Function211" };
        var operation = telemetryClient.StartOperation(requestTelemetry);

        telemetryClient.TrackTrace("trace message 111", SeverityLevel.Error);
        telemetryClient.TrackException(new System.Exception("My custom exception 111"));

        operation.Telemetry.Success = true;
        telemetryClient.StopOperation(operation);

        return req.CreateResponse(HttpStatusCode.OK, "Hello ");
    }
}

After executed, you can see the operation_id for trace / exception in azure portal: