public void DoubleObserverSendsAggregateToRegisteredProcessor()
{
var testProcessor = new TestMetricProcessor();
var meter = Sdk.CreateMeterProviderBuilder()
.SetProcessor(testProcessor)
.Build()
.GetMeter("library1") as MeterSdk;
var testObserver = meter.CreateDoubleObserver("testObserver", this.TestCallbackDouble);
meter.Collect();
Assert.Single(testProcessor.Metrics);
var metric = testProcessor.Metrics[0];
Assert.Equal("testObserver", metric.MetricName);
Assert.Equal("library1", metric.MetricNamespace);
// 2 time series, as 2 unique label sets.
Assert.Equal(2, metric.Data.Count);
var metricSeries = metric.Data.Single(data => data.Labels.Any(l => l.Key == "dim1" && l.Value == "value1"));
var metricLong = metricSeries as DoubleSumData;
Assert.Equal(30.5, metricLong.Sum);
metricSeries = metric.Data.Single(data => data.Labels.Any(l => l.Key == "dim1" && l.Value == "value2"));
metricLong = metricSeries as DoubleSumData;
Assert.Equal(300.5, metricLong.Sum);
}
public void DefaultMeterShouldBeCollectedAsWell()
{
var testProcessor = new TestMetricProcessor();
var meterProvider = Sdk.CreateMeterProviderBuilder()
.SetProcessor(testProcessor)
.Build() as MeterProviderSdk;
var controller = meterProvider.PushMetricController;
var defaultMeter = meterProvider.GetMeter(string.Empty) as MeterSdk;
// Record some metrics using default meter
var testCounter = defaultMeter.CreateInt64Counter("testCounter");
var context = default(SpanContext);
var labels = LabelSet.BlankLabelSet;
testCounter.Add(context, 100, labels);
testCounter.Add(context, 10, labels);
// Collect using PushMetricController
var sw = Stopwatch.StartNew();
var metricToExport = controller.Collect(sw).ToList();
Assert.Single(metricToExport);
Assert.Single(metricToExport[0].Data);
Assert.Equal(110, (metricToExport[0].Data[0] as Int64SumData).Sum);
}
public void CounterSendsAggregateToRegisteredProcessor()
{
var testProcessor = new TestMetricProcessor();
var meter = Sdk.CreateMeterProviderBuilder()
.SetProcessor(testProcessor)
.Build()
.GetMeter("library1") as MeterSdk;
var testCounter = meter.CreateInt64Counter("testCounter");
var labels1 = new List <KeyValuePair <string, string> >();
labels1.Add(new KeyValuePair <string, string>("dim1", "value1"));
var labels2 = new List <KeyValuePair <string, string> >();
labels2.Add(new KeyValuePair <string, string>("dim1", "value2"));
var labels3 = new List <KeyValuePair <string, string> >();
labels3.Add(new KeyValuePair <string, string>("dim1", "value3"));
var context = default(SpanContext);
testCounter.Add(context, 100, meter.GetLabelSet(labels1));
testCounter.Add(context, 10, meter.GetLabelSet(labels1));
var boundCounterLabel2 = testCounter.Bind(labels2);
boundCounterLabel2.Add(context, 200);
testCounter.Add(context, 200, meter.GetLabelSet(labels3));
testCounter.Add(context, 10, meter.GetLabelSet(labels3));
meter.Collect();
Assert.Single(testProcessor.Metrics);
var metric = testProcessor.Metrics[0];
Assert.Equal("testCounter", metric.MetricName);
Assert.Equal("library1", metric.MetricNamespace);
// 3 time series, as 3 unique label sets.
Assert.Equal(3, metric.Data.Count);
var metricSeries = metric.Data.Single(data => data.Labels.Any(l => l.Key == "dim1" && l.Value == "value1"));
var metricLong = metricSeries as Int64SumData;
Assert.Equal(110, metricLong.Sum);
metricSeries = metric.Data.Single(data => data.Labels.Any(l => l.Key == "dim1" && l.Value == "value2"));
metricLong = metricSeries as Int64SumData;
Assert.Equal(200, metricLong.Sum);
metricSeries = metric.Data.Single(data => data.Labels.Any(l => l.Key == "dim1" && l.Value == "value3"));
metricLong = metricSeries as Int64SumData;
Assert.Equal(210, metricLong.Sum);
}
public void MeasureSendsAggregateToRegisteredProcessor()
{
var testProcessor = new TestMetricProcessor();
var meter = Sdk.CreateMeterProviderBuilder()
.SetProcessor(testProcessor)
.Build()
.GetMeter("library1") as MeterSdk;
var testMeasure = meter.CreateInt64Measure("testMeasure");
var labels1 = new List <KeyValuePair <string, string> >();
labels1.Add(new KeyValuePair <string, string>("dim1", "value1"));
var labels2 = new List <KeyValuePair <string, string> >();
labels2.Add(new KeyValuePair <string, string>("dim1", "value2"));
var context = default(SpanContext);
testMeasure.Record(context, 100, meter.GetLabelSet(labels1));
testMeasure.Record(context, 10, meter.GetLabelSet(labels1));
testMeasure.Record(context, 1, meter.GetLabelSet(labels1));
testMeasure.Record(context, 200, meter.GetLabelSet(labels2));
testMeasure.Record(context, 20, meter.GetLabelSet(labels2));
meter.Collect();
Assert.Single(testProcessor.Metrics);
var metric = testProcessor.Metrics[0];
Assert.Equal("testMeasure", metric.MetricName);
Assert.Equal("library1", metric.MetricNamespace);
// 2 time series, as 2 unique label sets.
Assert.Equal(2, metric.Data.Count);
var metricSeries = metric.Data.Single(data => data.Labels.Any(l => l.Key == "dim1" && l.Value == "value1"));
var metricSummary = metricSeries as Int64SummaryData;
Assert.Equal(111, metricSummary.Sum);
Assert.Equal(3, metricSummary.Count);
Assert.Equal(1, metricSummary.Min);
Assert.Equal(100, metricSummary.Max);
metricSeries = metric.Data.Single(data => data.Labels.Any(l => l.Key == "dim1" && l.Value == "value2"));
metricSummary = metricSeries as Int64SummaryData;
Assert.Equal(220, metricSummary.Sum);
Assert.Equal(2, metricSummary.Count);
Assert.Equal(20, metricSummary.Min);
Assert.Equal(200, metricSummary.Max);
}
public void PushControllerCollectsAllMeters()
{
// Setup controller to collect every 25 msec.
var controllerPushIntervalInMsec = 25;
var collectionCountExpectedMin = 3;
var maxWaitInMsec = (controllerPushIntervalInMsec * collectionCountExpectedMin) + 2000;
int exportCalledCount = 0;
var testExporter = new TestMetricExporter(() => exportCalledCount++);
var testProcessor = new TestMetricProcessor();
// Setup 2 meters whose Collect will increment the collect count.
int meter1CollectCount = 0;
int meter2CollectCount = 0;
var meters = new Dictionary <MeterRegistryKey, MeterSdk>();
var testMeter1 = new TestMeter("meter1", testProcessor, () => meter1CollectCount++);
meters.Add(new MeterRegistryKey("meter1", string.Empty), testMeter1);
var testMeter2 = new TestMeter("meter2", testProcessor, () => meter2CollectCount++);
meters.Add(new MeterRegistryKey("meter2", string.Empty), testMeter2);
var pushInterval = TimeSpan.FromMilliseconds(controllerPushIntervalInMsec);
var pushController = new PushMetricController(
meters,
testProcessor,
testExporter,
pushInterval,
new CancellationTokenSource());
// Validate that collect is called on Meter1, Meter2.
this.ValidateMeterCollect(ref meter1CollectCount, collectionCountExpectedMin, "meter1", TimeSpan.FromMilliseconds(maxWaitInMsec));
this.ValidateMeterCollect(ref meter2CollectCount, collectionCountExpectedMin, "meter2", TimeSpan.FromMilliseconds(maxWaitInMsec));
// Export must be called same no: of times as Collect.
Assert.True(exportCalledCount >= collectionCountExpectedMin);
}
public void LongCounterBoundInstrumentsStatusUpdatedCorrectlySingleThread()
{
var testProcessor = new TestMetricProcessor();
var meter = Sdk.CreateMeterProviderBuilder()
.SetProcessor(testProcessor)
.Build()
.GetMeter("library1") as MeterSdk;
var testCounter = meter.CreateInt64Counter("testCounter") as CounterMetricSdkBase <long>;
var labels1 = new List <KeyValuePair <string, string> >();
labels1.Add(new KeyValuePair <string, string>("dim1", "value1"));
var ls1 = meter.GetLabelSet(labels1);
var labels2 = new List <KeyValuePair <string, string> >();
labels2.Add(new KeyValuePair <string, string>("dim1", "value2"));
var ls2 = meter.GetLabelSet(labels2);
var labels3 = new List <KeyValuePair <string, string> >();
labels3.Add(new KeyValuePair <string, string>("dim1", "value3"));
var ls3 = meter.GetLabelSet(labels3);
var context = default(SpanContext);
// We have ls1, ls2, ls3
// ls1 and ls3 are not bound so they should removed when no usage for a Collect cycle.
// ls2 is bound by user.
testCounter.Add(context, 100, ls1);
testCounter.Add(context, 10, ls1);
// initial status for temp bound instruments are UpdatePending.
Assert.Equal(RecordStatus.UpdatePending, testCounter.GetAllBoundInstruments()[ls1].Status);
var boundCounterLabel2 = testCounter.Bind(ls2);
boundCounterLabel2.Add(context, 200);
// initial/forever status for user bound instruments are Bound.
Assert.Equal(RecordStatus.Bound, testCounter.GetAllBoundInstruments()[ls2].Status);
testCounter.Add(context, 200, ls3);
testCounter.Add(context, 10, ls3);
// initial status for temp bound instruments are UpdatePending.
Assert.Equal(RecordStatus.UpdatePending, testCounter.GetAllBoundInstruments()[ls3].Status);
// This collect should mark ls1, ls3 as NoPendingUpdate, leave ls2 untouched.
meter.Collect();
// Validate collect() has marked records correctly.
Assert.Equal(RecordStatus.NoPendingUpdate, testCounter.GetAllBoundInstruments()[ls1].Status);
Assert.Equal(RecordStatus.NoPendingUpdate, testCounter.GetAllBoundInstruments()[ls3].Status);
Assert.Equal(RecordStatus.Bound, testCounter.GetAllBoundInstruments()[ls2].Status);
// Use ls1 again, so that it'll be promoted to UpdatePending
testCounter.Add(context, 100, ls1);
// This collect should mark ls1 as NoPendingUpdate, leave ls2 untouched.
// And ls3 as CandidateForRemoval, as it was not used since last Collect
meter.Collect();
// Validate collect() has marked records correctly.
Assert.Equal(RecordStatus.NoPendingUpdate, testCounter.GetAllBoundInstruments()[ls1].Status);
Assert.Equal(RecordStatus.CandidateForRemoval, testCounter.GetAllBoundInstruments()[ls3].Status);
Assert.Equal(RecordStatus.Bound, testCounter.GetAllBoundInstruments()[ls2].Status);
// This collect should mark
// ls1 as CandidateForRemoval as it was not used since last Collect
// leave ls2 untouched.
// ls3 should be physically removed as it remained CandidateForRemoval during an entire Collect cycle.
meter.Collect();
Assert.Equal(RecordStatus.CandidateForRemoval, testCounter.GetAllBoundInstruments()[ls1].Status);
Assert.Equal(RecordStatus.Bound, testCounter.GetAllBoundInstruments()[ls2].Status);
Assert.False(testCounter.GetAllBoundInstruments().ContainsKey(ls3));
}
public void DoubleCounterBoundInstrumentsStatusUpdatedCorrectlyMultiThread()
{
var testProcessor = new TestMetricProcessor();
var meter = Sdk.CreateMeterProviderBuilder()
.SetProcessor(testProcessor)
.Build()
.GetMeter("library1") as MeterSdk;
var testCounter = meter.CreateDoubleCounter("testCounter") as CounterMetricSdkBase <double>;
var labels1 = new List <KeyValuePair <string, string> >();
labels1.Add(new KeyValuePair <string, string>("dim1", "value1"));
var ls1 = meter.GetLabelSet(labels1);
var context = default(SpanContext);
// Call metric update with ls1 so that ls1 wont be brand new labelset when doing multi-thread test.
testCounter.Add(context, 100.0, ls1);
testCounter.Add(context, 10.0, ls1);
// This collect should mark ls1 NoPendingUpdate
meter.Collect();
// Validate collect() has marked records correctly.
Assert.Equal(RecordStatus.NoPendingUpdate, testCounter.GetAllBoundInstruments()[ls1].Status);
// Another collect(). This collect should mark ls1 as CandidateForRemoval.
meter.Collect();
Assert.Equal(RecordStatus.CandidateForRemoval, testCounter.GetAllBoundInstruments()[ls1].Status);
// Call Collect() and update with ls1 parallelly to validate no update is lost, as ls1 is marked
// candidate for removal after above step.
var mre = new ManualResetEvent(false);
var argsForMeterCollect = new ArgsToThread();
argsForMeterCollect.MreToBlockStartOfThread = mre;
argsForMeterCollect.Callback = () => meter.Collect();
var argsForCounterAdd = new ArgsToThread();
argsForCounterAdd.MreToBlockStartOfThread = mre;
argsForCounterAdd.Callback = () => testCounter.Add(context, 100.0, ls1);
var collectThread = new Thread(ThreadMethod);
var updateThread = new Thread(ThreadMethod);
collectThread.Start(argsForMeterCollect);
updateThread.Start(argsForCounterAdd);
// Attempt to start both threads.
// TODO:
// Instead of this, evaluate if a different testing approach is needed.
// One or more thread doing Updates in parallel.
// One thread doing occasional Collect.
// At the end, validate that no metric update is lost.
mre.Set();
collectThread.Join();
updateThread.Join();
// Validate that the exported record doesn't miss any update.
// The Add(100) value must have already been exported, or must be exported in the next Collect().
meter.Collect();
double sum = 0;
foreach (var exportedData in testProcessor.Metrics)
{
exportedData.Data.ForEach(data => sum += (data as DoubleSumData).Sum);
}
// 210 = 110 from initial update, 100 from the multi-thread test case.
Assert.Equal(210.0, sum);
}