public virtual void TestQSize()
{
new ConfigBuilder().Add("*.period", 8).Add("test.sink.test.class", typeof(TestMetricsSystemImpl.TestSink
).FullName).Save(TestMetricsConfig.GetTestFilename("hadoop-metrics2-test"));
MetricsSystemImpl ms = new MetricsSystemImpl("Test");
CountDownLatch proceedSignal = new CountDownLatch(1);
CountDownLatch reachedPutMetricSignal = new CountDownLatch(1);
ms.Start();
try
{
MetricsSink slowSink = Org.Mockito.Mockito.Mock <MetricsSink>();
MetricsSink dataSink = Org.Mockito.Mockito.Mock <MetricsSink>();
ms.RegisterSink("slowSink", "The sink that will wait on putMetric", slowSink);
ms.RegisterSink("dataSink", "The sink I'll use to get info about slowSink", dataSink
);
Org.Mockito.Mockito.DoAnswer(new _Answer_457(reachedPutMetricSignal, proceedSignal
)).When(slowSink).PutMetrics(Any <MetricsRecord>());
// trigger metric collection first time
ms.OnTimerEvent();
Assert.True(reachedPutMetricSignal.Await(1, TimeUnit.Seconds));
// Now that the slow sink is still processing the first metric,
// its queue length should be 1 for the second collection.
ms.OnTimerEvent();
Org.Mockito.Mockito.Verify(dataSink, Org.Mockito.Mockito.Timeout(500).Times(2)).PutMetrics
(r1.Capture());
IList <MetricsRecord> mr = r1.GetAllValues();
Number qSize = Iterables.Find(mr[1].Metrics(), new _Predicate_475()).Value();
Assert.Equal(1, qSize);
}
finally
{
proceedSignal.CountDown();
ms.Stop();
}
}
/// <summary>HADOOP-11932</summary>
/// <exception cref="System.Exception"/>
public virtual void TestHangOnSinkRead()
{
new ConfigBuilder().Add("*.period", 8).Add("test.sink.test.class", typeof(TestMetricsSystemImpl.TestSink
).FullName).Save(TestMetricsConfig.GetTestFilename("hadoop-metrics2-test"));
MetricsSystemImpl ms = new MetricsSystemImpl("Test");
ms.Start();
try
{
CountDownLatch collectingLatch = new CountDownLatch(1);
MetricsSink sink = new TestMetricsSystemImpl.TestClosableSink(collectingLatch);
ms.RegisterSink("closeableSink", "The sink will be used to test closeability", sink
);
// trigger metric collection first time
ms.OnTimerEvent();
// Make sure that sink is collecting metrics
Assert.True(collectingLatch.Await(1, TimeUnit.Seconds));
}
finally
{
ms.Stop();
}
}
