Aws XRay .net控制台应用程序中的“实体在CallContext中不存在”

Question

I have a setup for SQSClient like this:

var client = new AmazonSQSClient();
new AWSSdkTracingHandler(AWSXRayRecorder.Instance).AddEventHandler(client);
return client;

now when i call the client

var receiveResult = _amazonSqs.ReceiveMessage(_longPollRequest);

I get the following exception

Amazon.XRay.Recorder.Core.Exceptions.EntityNotAvailableException was 
unhandled by user code
HResult=-2146233088
Message=Entity doesn't exist in CallContext
Source=AWSXRayRecorder.Core
StackTrace:
   at Amazon.XRay.Recorder.Core.Internal.Utils.TraceContext.GetEntity() in c:\Jenkins\jobs\net-release\workspace\sdk\src\Core\Internal\Utils\TraceContext.cs:line 47
   at Amazon.XRay.Recorder.Handlers.AwsSdk.AWSSdkTracingHandler.ExceptionEventHandler(Object sender, ExceptionEventArgs e) in c:\Jenkins\jobs\net-release\workspace\sdk\src\Handlers\AwsSdk\AWSSdkTracingHandler.cs:line 324
   at Amazon.Runtime.AmazonServiceClient.ProcessExceptionHandlers(IExecutionContext executionContext, Exception exception)
   at Amazon.Runtime.Internal.ErrorCallbackHandler.HandleException(IExecutionContext executionContext, Exception exception)
   at Amazon.Runtime.Internal.ErrorCallbackHandler.InvokeSync(IExecutionContext executionContext)
   at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
   at Amazon.Runtime.Internal.MetricsHandler.InvokeSync(IExecutionContext executionContext)
   at Amazon.Runtime.Internal.RuntimePipeline.InvokeSync(IExecutionContext executionContext)
   at Amazon.Runtime.AmazonServiceClient.Invoke[TRequest,TResponse](TRequest request, IMarshaller`2 marshaller, ResponseUnmarshaller unmarshaller)
   at Amazon.SQS.AmazonSQSClient.ReceiveMessage(ReceiveMessageRequest request)
   at BasePriceCalculator.Library.Services.AwsSqsCalculationMessageListener.Listen() in C:\working\base-price-calculator\BasePriceCalculator.Library\Services\AwsSqsCalculationMessageListener.cs:line 74
   at BasePriceCalculator.BasePriceCalculatorService.<Start>b__3_0() in C:\working\base-price-calculator\BasePriceCalculator\BasePriceCalculatorService.cs:line 26
   at System.Threading.Tasks.Task.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()

i have tried adding something like AWSXRayRecorder.Instance.BeginSegment(); but somehow that requires a traceId that i can't seem to satisfy

AWSXRayRecorder.Instance.BeginSegment("ReceiveMessage", Guid.NewGuid().ToString());
var receiveResult = _amazonSqs.ReceiveMessage(_longPollRequest);
AWSXRayRecorder.Instance.EndSegment();

exception:

System.ArgumentException was unhandled by user code
HResult=-2147024809
Message=Trace id is invalid.
Parameter name: value
ParamName=value
Source=AWSXRayRecorder.Core
StackTrace:
   at Amazon.XRay.Recorder.Core.Internal.Entities.Entity.set_TraceId(String value) in c:\Jenkins\jobs\net-release\workspace\sdk\src\Core\Internal\Entities\Entity.cs:line 78
   at Amazon.XRay.Recorder.Core.Internal.Entities.Segment..ctor(String name, String traceId, String parentId) in c:\Jenkins\jobs\net-release\workspace\sdk\src\Core\Internal\Entities\Segment.cs:line 46
   at Amazon.XRay.Recorder.Core.AWSXRayRecorder.BeginSegment(String name, String traceId, String parentId, SampleDecision sampleDecision) in c:\Jenkins\jobs\net-release\workspace\sdk\src\Core\AWSXRayRecorder.cs:line 164
   at BasePriceCalculator.Library.Services.AwsSqsCalculationMessageListener.<Listen>b__10_1() in C:\working\base-price-calculator\BasePriceCalculator.Library\Services\AwsSqsCalculationMessageListener.cs:line 65
   at StatsdClient.DogStatsdService.Time[T](Func`1 func, String statName, Double sampleRate, String[] tags)
   at StatsdClient.DogStatsd.Time[T](Func`1 func, String statName, Double sampleRate, String[] tags)
   at DataDogUtils.DataDogMetricPublisher.Time[T](Func`1 func, String statName, Double sampleRate, String[] tags)
   at BasePriceCalculator.Library.Services.AwsSqsCalculationMessageListener.<Listen>b__10_0() in C:\working\base-price-calculator\BasePriceCalculator.Library\Services\AwsSqsCalculationMessageListener.cs:line 63
   at Polly.Policy`1.<>c__DisplayClass67_0.<ExecuteAndCapture>b__0(Context ctx, CancellationToken ct) in C:\projects\polly\src\Polly.Shared\Policy.TResult.cs:line 194
   at Polly.Retry.RetryEngine.Implementation[TResult](Func`3 action, Context context, CancellationToken cancellationToken, IEnumerable`1 shouldRetryExceptionPredicates, IEnumerable`1 shouldRetryResultPredicates, Func`1 policyStateFactory) in C:\projects\polly\src\Polly.Shared\Retry\RetryEngine.cs:line 26

I must be doing something wrong, but i am not seeing it.

Answer 1

You can create a new Trace ID using TraceId.NewId(); . This class is available in the Amazon.XRay.Recorder.Core.Internal.Entities namespace.

As Ruslan mentioned, we (the AWS X-Ray team) are very active on the AWS X-Ray official forum. Unfortunately, your linked post appears to have been posted in the AWS .NET language specific forum. We're much more likely to quickly respond to future posts if they're made to the X-Ray specific forum .

Thanks,

James B.