public void QuickPulseServiceClientFillsInSampleWeightWhenSubmittingToService()
{
// ARRANGE
var now = DateTimeOffset.UtcNow;
var serviceClient = new QuickPulseServiceClient(this.serviceEndpoint, string.Empty, string.Empty, string.Empty, string.Empty, new Clock());
var sample1 =
new QuickPulseDataSample(
new QuickPulseDataAccumulator
{
AIRequestCountAndDurationInTicks = QuickPulseDataAccumulator.EncodeCountAndDuration(3, 10000),
StartTimestamp = now,
EndTimestamp = now.AddSeconds(1)
},
new Dictionary <string, Tuple <PerformanceCounterData, float> >());
var sample2 =
new QuickPulseDataSample(
new QuickPulseDataAccumulator
{
AIDependencyCallCountAndDurationInTicks =
QuickPulseDataAccumulator.EncodeCountAndDuration(4, 10000),
StartTimestamp = now,
EndTimestamp = now.AddSeconds(1)
},
new Dictionary <string, Tuple <PerformanceCounterData, float> >());
// ACT
serviceClient.SubmitSamples(new[] { sample1, sample2 }, string.Empty);
// ASSERT
this.listener.Stop();
Assert.AreEqual(3, this.samples[0].Item2.Metrics.Single(m => m.Name == @"\ApplicationInsights\Request Duration").Weight);
Assert.AreEqual(4, this.samples[1].Item2.Metrics.Single(m => m.Name == @"\ApplicationInsights\Dependency Call Duration").Weight);
}
public void QuickPulseDataAccumulatorCollectsTelemetryItemsInThreadSafeManner()
{
// ARRANGE
CollectionConfigurationError[] errors;
var accumulator =
new QuickPulseDataAccumulator(
new CollectionConfiguration(
new CollectionConfigurationInfo()
{
ETag = string.Empty, Metrics = new CalculatedMetricInfo[0]
},
out errors,
new ClockMock()));
// ACT
var iterationCount = 1000;
var concurrency = 12;
Action addItemTask =
() =>
Enumerable.Range(0, iterationCount)
.ToList()
.ForEach(
i => accumulator.TelemetryDocuments.Push(new RequestTelemetryDocument()
{
Name = i.ToString(CultureInfo.InvariantCulture)
}));
var tasks = new List <Action>();
for (int i = 0; i < concurrency; i++)
{
tasks.Add(addItemTask);
}
Parallel.Invoke(new ParallelOptions()
{
MaxDegreeOfParallelism = concurrency
}, tasks.ToArray());
// ASSERT
var dict = new Dictionary <int, int>();
foreach (var item in accumulator.TelemetryDocuments)
{
int requestNumber = int.Parse(((RequestTelemetryDocument)item).Name, CultureInfo.InvariantCulture);
if (dict.ContainsKey(requestNumber))
{
dict[requestNumber]++;
}
else
{
dict[requestNumber] = 1;
}
}
Assert.AreEqual(iterationCount, dict.Count);
Assert.IsTrue(dict.All(pair => pair.Value == concurrency));
}
private static QuickPulseDataSample CreateDataSample(
QuickPulseDataAccumulator accumulator,
IEnumerable <Tuple <PerformanceCounterData, double> > perfData,
IEnumerable <Tuple <string, int> > topCpuData,
bool topCpuDataAccessDenied)
{
return(new QuickPulseDataSample(
accumulator,
perfData.ToDictionary(tuple => tuple.Item1.ReportAs, tuple => tuple),
topCpuData,
topCpuDataAccessDenied));
}
private QuickPulseDataSample CollectSample()
{
// For AI data, all we have to do is lock the current accumulator in
QuickPulseDataAccumulator completeAccumulator = this.dataAccumulatorManager.CompleteCurrentDataAccumulator();
// For performance collection, we have to read perf samples from Windows
List <Tuple <PerformanceCounterData, float> > perfData =
this.performanceCollector.Collect((counterName, e) => QuickPulseEventSource.Log.CounterReadingFailedEvent(e.ToString(), counterName))
.ToList();
return(this.CreateDataSample(completeAccumulator, perfData));
}
public void QuickPulseDataAccumulatorEncodesCountAndDurationOverflowDuration()
{
// ARRANGE
// ACTt
long encodedValue = QuickPulseDataAccumulator.EncodeCountAndDuration(MaxCount, MaxDuration + 1);
Tuple <long, long> decodedValues = QuickPulseDataAccumulator.DecodeCountAndDuration(encodedValue);
// ASSERT
Assert.AreEqual(0, decodedValues.Item1);
Assert.AreEqual(0, decodedValues.Item2);
}
public void QuickPulseDataAccumulatorEncodesCountAndDuration()
{
// ARRANGE
long count = 42;
long duration = 102;
// ACT
long encodedValue = QuickPulseDataAccumulator.EncodeCountAndDuration(count, duration);
Tuple <long, long> decodedValues = QuickPulseDataAccumulator.DecodeCountAndDuration(encodedValue);
// ASSERT
Assert.AreEqual(count, decodedValues.Item1);
Assert.AreEqual(duration, decodedValues.Item2);
}
public void QuickPulseDataSampleHandlesAbsentCounterInPerfData()
{
// ARRANGE
var accumulator = new QuickPulseDataAccumulator
{
StartTimestamp = DateTimeOffset.UtcNow,
EndTimestamp = DateTimeOffset.UtcNow.AddSeconds(2)
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary);
// ASSERT
Assert.IsFalse(dataSample.PerfCountersLookup.Any());
}
private void UpdateRequestAggregates(RequestTelemetry requestTelemetry)
{
long requestCountAndDurationInTicks = QuickPulseDataAccumulator.EncodeCountAndDuration(1, requestTelemetry.Duration.Ticks);
Interlocked.Add(ref this.dataAccumulatorManager.CurrentDataAccumulator.AIRequestCountAndDurationInTicks, requestCountAndDurationInTicks);
if (requestTelemetry.Success == true)
{
Interlocked.Increment(ref this.dataAccumulatorManager.CurrentDataAccumulator.AIRequestSuccessCount);
}
else
{
Interlocked.Increment(ref this.dataAccumulatorManager.CurrentDataAccumulator.AIRequestFailureCount);
}
}
public void QuickPulseDataSampleHandlesAbsentCounterInPerfData()
{
// ARRANGE
var accumulator = new QuickPulseDataAccumulator
{
StartTimestamp = DateTimeOffset.UtcNow,
EndTimestamp = DateTimeOffset.UtcNow.AddSeconds(2)
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary);
// ASSERT
Assert.AreEqual(0.0, dataSample.PerfIisQueueSize);
}
public void QuickPulseDataSampleHandlesAbsentTopCpuData()
{
// ARRANGE
var accumulator = new QuickPulseDataAccumulator
{
StartTimestamp = DateTimeOffset.UtcNow,
EndTimestamp = DateTimeOffset.UtcNow.AddSeconds(2)
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary, this.dummyTopCpu, false);
// ASSERT
Assert.IsFalse(dataSample.TopCpuData.Any());
}
public void QuickPulseDataSampleHandlesAbsentTopCpuData()
{
// ARRANGE
var accumulator =
new QuickPulseDataAccumulator(new CollectionConfiguration(EmptyCollectionConfigurationInfo, out this.errors, new ClockMock()))
{
StartTimestamp = DateTimeOffset.UtcNow,
EndTimestamp = DateTimeOffset.UtcNow.AddSeconds(2)
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary, this.dummyTopCpu, false);
// ASSERT
Assert.IsFalse(dataSample.TopCpuData.Any());
}
public void QuickPulseDataSampleCalculatesAIDependencyCallsFailedPerSecondCorrectly()
{
// ARRANGE
var accumulator = new QuickPulseDataAccumulator
{
StartTimestamp = this.now,
EndTimestamp = this.now.AddSeconds(2),
AIDependencyCallFailureCount = 10
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary, this.dummyTopCpu, false);
// ASSERT
Assert.AreEqual(10.0 / 2, dataSample.AIDependencyCallsFailedPerSecond);
}
public void QuickPulseDataSampleCalculatesAIRpsCorrectly()
{
// ARRANGE
var accumulator = new QuickPulseDataAccumulator
{
StartTimestamp = DateTimeOffset.UtcNow,
EndTimestamp = DateTimeOffset.UtcNow.AddSeconds(2),
AIRequestCountAndDurationInTicks = QuickPulseDataAccumulator.EncodeCountAndDuration(10, 0)
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary);
// ASSERT
Assert.AreEqual(10.0 / 2, dataSample.AIRequestsPerSecond);
}
public void QuickPulseDataSampleCalculatesAIExceptionsPerSecondCorrectly()
{
// ARRANGE
var accumulator = new QuickPulseDataAccumulator
{
StartTimestamp = DateTimeOffset.UtcNow,
EndTimestamp = DateTimeOffset.UtcNow.AddSeconds(2),
AIExceptionCount = 3
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary);
// ASSERT
Assert.AreEqual(3.0 / 2, dataSample.AIExceptionsPerSecond);
}
public void QuickPulseDataSampleTimestampsItselfCorrectly()
{
// ARRANGE
var timestampStart = DateTimeOffset.UtcNow;
var timestampEnd = DateTimeOffset.UtcNow.AddSeconds(3);
var accumulator = new QuickPulseDataAccumulator {
StartTimestamp = timestampStart, EndTimestamp = timestampEnd
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary);
// ASSERT
Assert.AreEqual(timestampStart, dataSample.StartTimestamp);
Assert.AreEqual(timestampEnd, dataSample.EndTimestamp);
}
public void QuickPulseDataSampleCalculatesAIDependencyCallsSucceededPerSecondCorrectly()
{
// ARRANGE
var accumulator = new QuickPulseDataAccumulator
{
StartTimestamp = DateTimeOffset.UtcNow,
EndTimestamp = DateTimeOffset.UtcNow.AddSeconds(2),
AIDependencyCallSuccessCount = 10
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary);
// ASSERT
Assert.AreEqual(10.0 / 2, dataSample.AIDependencyCallsSucceededPerSecond);
}
public void QuickPulseDataSampleCalculatesAIRequestDurationAveCorrectly()
{
// ARRANGE
var accumulator = new QuickPulseDataAccumulator
{
StartTimestamp = DateTimeOffset.UtcNow,
EndTimestamp = DateTimeOffset.UtcNow.AddSeconds(2),
AIRequestCountAndDurationInTicks =
QuickPulseDataAccumulator.EncodeCountAndDuration(10, TimeSpan.FromSeconds(5).Ticks)
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary);
// ASSERT
Assert.AreEqual(TimeSpan.FromSeconds(5).TotalMilliseconds / 10.0, dataSample.AIRequestDurationAveInMs);
}
public void QuickPulseDataSampleCalculatesAIDependencyCallDurationAveWhenDependencyCallCountIsZeroCorrectly()
{
// ARRANGE
var accumulator =
new QuickPulseDataAccumulator(new CollectionConfiguration(EmptyCollectionConfigurationInfo, out this.errors, new ClockMock()))
{
StartTimestamp = this.now,
EndTimestamp = this.now.AddSeconds(2),
AIDependencyCallCountAndDurationInTicks = QuickPulseDataAccumulator.EncodeCountAndDuration(0, TimeSpan.FromSeconds(5).Ticks)
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary, this.dummyTopCpu, false);
// ASSERT
Assert.AreEqual(0.0, dataSample.AIDependencyCallDurationAveInMs);
}
private void UpdateDependencyAggregates(DependencyTelemetry dependencyTelemetry)
{
long dependencyCallCountAndDurationInTicks = QuickPulseDataAccumulator.EncodeCountAndDuration(1, dependencyTelemetry.Duration.Ticks);
Interlocked.Add(
ref this.dataAccumulatorManager.CurrentDataAccumulator.AIDependencyCallCountAndDurationInTicks,
dependencyCallCountAndDurationInTicks);
if (dependencyTelemetry.Success == true)
{
Interlocked.Increment(ref this.dataAccumulatorManager.CurrentDataAccumulator.AIDependencyCallSuccessCount);
}
else if (dependencyTelemetry.Success == false)
{
Interlocked.Increment(ref this.dataAccumulatorManager.CurrentDataAccumulator.AIDependencyCallFailureCount);
}
}
private QuickPulseDataSample CollectSample()
{
// For AI data, all we have to do is lock the current accumulator in
QuickPulseDataAccumulator completeAccumulator = this.dataAccumulatorManager.CompleteCurrentDataAccumulator();
// For performance collection, we have to read perf samples from Windows
List <Tuple <PerformanceCounterData, double> > perfData =
this.performanceCollector.Collect((counterName, e) => QuickPulseEventSource.Log.CounterReadingFailedEvent(e.ToString(), counterName))
.ToList();
// For top N CPU, we have to get data from the provider
IEnumerable <Tuple <string, int> > topCpuData = this.DisableTopCpuProcesses
? Enumerable.Empty <Tuple <string, int> >()
: this.topCpuCollector.GetTopProcessesByCpu(TopCpuCount);
return(this.CreateDataSample(completeAccumulator, perfData, topCpuData, this.topCpuCollector.AccessDenied));
}
public void QuickPulseDataSampleCalculatesAIExceptionsPerSecondCorrectly()
{
// ARRANGE
var accumulator =
new QuickPulseDataAccumulator(new CollectionConfiguration(EmptyCollectionConfigurationInfo, out this.errors, new ClockMock()))
{
StartTimestamp = this.now,
EndTimestamp = this.now.AddSeconds(2),
AIExceptionCount = 3
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary, this.dummyTopCpu, false);
// ASSERT
Assert.AreEqual(3.0 / 2, dataSample.AIExceptionsPerSecond);
}
public void QuickPulseDataSampleCalculatesAIDependencyCallDurationAveWhenDependencyCallCountIsZeroCorrectly()
{
// ARRANGE
var accumulator = new QuickPulseDataAccumulator
{
StartTimestamp = DateTimeOffset.UtcNow,
EndTimestamp = DateTimeOffset.UtcNow.AddSeconds(2),
AIDependencyCallCountAndDurationInTicks =
QuickPulseDataAccumulator.EncodeCountAndDuration(0, TimeSpan.FromSeconds(5).Ticks)
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary);
// ASSERT
Assert.AreEqual(0.0, dataSample.AIDependencyCallDurationAveInMs);
}
public void QuickPulseDataSampleCalculatesAIRequestDurationAveWhenRequestCountIsZeroCorrectly()
{
// ARRANGE
var accumulator = new QuickPulseDataAccumulator
{
StartTimestamp = this.now,
EndTimestamp = this.now.AddSeconds(2),
AIRequestCountAndDurationInTicks =
QuickPulseDataAccumulator.EncodeCountAndDuration(0, TimeSpan.FromSeconds(5).Ticks)
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary, this.dummyTopCpu, false);
// ASSERT
Assert.AreEqual(0.0, dataSample.AIRequestDurationAveInMs);
}
public void QuickPulseDataSampleTimestampsItselfCorrectly()
{
// ARRANGE
var timestampStart = this.now;
var timestampEnd = this.now.AddSeconds(3);
var accumulator =
new QuickPulseDataAccumulator(new CollectionConfiguration(EmptyCollectionConfigurationInfo, out this.errors, new ClockMock()))
{
StartTimestamp = timestampStart,
EndTimestamp = timestampEnd
};
// ACT
var dataSample = new QuickPulseDataSample(accumulator, this.dummyDictionary, this.dummyTopCpu, false);
// ASSERT
Assert.AreEqual(timestampStart, dataSample.StartTimestamp);
Assert.AreEqual(timestampEnd, dataSample.EndTimestamp);
}
public void QuickPulseDataSampleStoresTopCpuData()
{
// ARRANGE
var accumulator = new QuickPulseDataAccumulator
{
StartTimestamp = DateTimeOffset.UtcNow,
EndTimestamp = DateTimeOffset.UtcNow.AddSeconds(2)
};
// ACT
var dataSample = new QuickPulseDataSample(
accumulator,
this.dummyDictionary,
new List <Tuple <string, int> >()
{
Tuple.Create("Process1", 25)
},
false);
// ASSERT
Assert.AreEqual("Process1", dataSample.TopCpuData.Single().Item1);
Assert.AreEqual(25, dataSample.TopCpuData.Single().Item2);
}
/// <summary>
/// Intercepts telemetry items and updates QuickPulse data when needed.
/// </summary>
/// <param name="telemetry">Telemetry item being tracked by AI.</param>
/// <remarks>This method is performance critical since every AI telemetry item goes through it.</remarks>
public void Process(ITelemetry telemetry)
{
bool letItemThrough = true;
try
{
// filter out QPS requests from dependencies even when we're not collecting (for Pings)
var dependencyCall = telemetry as DependencyTelemetry;
if (this.serviceEndpoint != null && dependencyCall != null && !string.IsNullOrWhiteSpace(dependencyCall.Name))
{
if (dependencyCall.Name.IndexOf(this.serviceEndpoint.Host, StringComparison.OrdinalIgnoreCase) >= 0)
{
// this is an HTTP request to QuickPulse service, we don't want to let it through
letItemThrough = false;
return;
}
}
if (!this.isCollecting || this.dataAccumulatorManager == null)
{
return;
}
// only process items that are going to the instrumentation key that our module is initialized with
if (this.config != null && !string.IsNullOrWhiteSpace(this.config.InstrumentationKey) && telemetry.Context != null &&
string.Equals(telemetry.Context.InstrumentationKey, this.config.InstrumentationKey, StringComparison.OrdinalIgnoreCase))
{
var request = telemetry as RequestTelemetry;
var exception = telemetry as ExceptionTelemetry;
if (request != null)
{
bool success = IsRequestSuccessful(request);
long requestCountAndDurationInTicks = QuickPulseDataAccumulator.EncodeCountAndDuration(1, request.Duration.Ticks);
Interlocked.Add(ref this.dataAccumulatorManager.CurrentDataAccumulator.AIRequestCountAndDurationInTicks, requestCountAndDurationInTicks);
if (success)
{
Interlocked.Increment(ref this.dataAccumulatorManager.CurrentDataAccumulator.AIRequestSuccessCount);
}
else
{
Interlocked.Increment(ref this.dataAccumulatorManager.CurrentDataAccumulator.AIRequestFailureCount);
}
}
else if (dependencyCall != null)
{
long dependencyCallCountAndDurationInTicks = QuickPulseDataAccumulator.EncodeCountAndDuration(1, dependencyCall.Duration.Ticks);
Interlocked.Add(ref this.dataAccumulatorManager.CurrentDataAccumulator.AIDependencyCallCountAndDurationInTicks, dependencyCallCountAndDurationInTicks);
if (dependencyCall.Success == true)
{
Interlocked.Increment(ref this.dataAccumulatorManager.CurrentDataAccumulator.AIDependencyCallSuccessCount);
}
else if (dependencyCall.Success == false)
{
Interlocked.Increment(ref this.dataAccumulatorManager.CurrentDataAccumulator.AIDependencyCallFailureCount);
}
}
else if (exception != null)
{
Interlocked.Increment(ref this.dataAccumulatorManager.CurrentDataAccumulator.AIExceptionCount);
}
}
}
catch (Exception e)
{
// whatever happened up there - we don't want to interrupt the chain of processors
QuickPulseEventSource.Log.UnknownErrorEvent(e.ToInvariantString());
}
finally
{
if (letItemThrough)
{
this.Next.Process(telemetry);
}
}
}
private QuickPulseDataSample CreateDataSample(
QuickPulseDataAccumulator accumulator,
IEnumerable <Tuple <PerformanceCounterData, float> > perfData)
{
return(new QuickPulseDataSample(accumulator, perfData.ToDictionary(tuple => tuple.Item1.ReportAs, tuple => tuple)));
}