public void RollingNumber_ResetBuckets() { MockedTime time = new MockedTime(); try { HystrixRollingNumber counter = new HystrixRollingNumber(time, 200, 10); // we start out with 0 buckets in the queue Assert.AreEqual(0, counter.Buckets.Size); // add 1 counter.Increment(HystrixRollingNumberEvent.Success); // confirm we have 1 bucket Assert.AreEqual(1, counter.Buckets.Size); // confirm we still have 1 bucket Assert.AreEqual(1, counter.Buckets.Size); // add 1 counter.Increment(HystrixRollingNumberEvent.Success); // we should now have a single bucket with no values in it instead of 2 or more buckets Assert.AreEqual(1, counter.Buckets.Size); } catch (Exception e) { TestContext.WriteLine(e.ToString()); Assert.Fail("Exception: " + e.Message); } }
public void RollingNumber_CreatesBuckets() { MockedTime time = new MockedTime(); try { HystrixRollingNumber counter = new HystrixRollingNumber(time, 200, 10); // confirm the initial settings Assert.AreEqual(200, counter.TimeInMilliseconds); Assert.AreEqual(10, counter.NumberOfBuckets); Assert.AreEqual(20, counter.BucketSizeInMilliseconds); // we start out with 0 buckets in the queue Assert.AreEqual(0, counter.Buckets.Size); // add a success in each interval which should result in all 10 buckets being created with 1 success in each for (int i = 0; i < counter.NumberOfBuckets; i++) { counter.Increment(HystrixRollingNumberEvent.Success); time.Increment(counter.BucketSizeInMilliseconds); } // confirm we have all 10 buckets Assert.AreEqual(10, counter.Buckets.Size); // add 1 more and we should still only have 10 buckets since that's the max counter.Increment(HystrixRollingNumberEvent.Success); Assert.AreEqual(10, counter.Buckets.Size); } catch (Exception e) { TestContext.WriteLine(e.ToString()); Assert.Fail("Exception: " + e.Message); } }
/// <summary> /// Initializes a new instance of the <see cref="HystrixThreadPoolMetrics"/> class. /// </summary> /// <param name="threadPoolKey">The key of the parent thread pool.</param> /// <param name="threadPool">The <see cref="ThreadPoolExecutor"/> of the parent thread pool.</param> /// <param name="properties">The properties of the parent thread pool.</param> private HystrixThreadPoolMetrics(HystrixThreadPoolKey threadPoolKey, ThreadPoolExecutor threadPool, IHystrixThreadPoolProperties properties) { this.threadPoolKey = threadPoolKey; this.threadPool = threadPool; this.properties = properties; this.counter = new HystrixRollingNumber(properties.MetricsRollingStatisticalWindowInMilliseconds, properties.MetricsRollingStatisticalWindowBuckets); }
public void RollingNumber_CumulativeCounterAfterRollingAndReset2() { MockedTime time = new MockedTime(); HystrixRollingNumberEvent type = HystrixRollingNumberEvent.Success; HystrixRollingNumber counter = new HystrixRollingNumber(time, 20, 2); Assert.AreEqual(0, counter.GetCumulativeSum(type)); counter.Increment(type); counter.Increment(type); counter.Increment(type); // iterate over 20 buckets on a queue sized for 2 for (int i = 0; i < 20; i++) { try { time.Increment(counter.BucketSizeInMilliseconds); } catch (Exception) { // ignore } if (i == 5 || i == 15) { // simulate a reset occurring every once in a while // so we ensure the absolute sum is handling it okay counter.Reset(); } } // no increments during the loop, just some before and after counter.Increment(type); counter.Increment(type); // cumulative count should be 5 regardless of buckets rolling Assert.AreEqual(5, counter.GetCumulativeSum(type)); }
public void RollingNumber_CumulativeCounterAfterRollingAndReset() { MockedTime time = new MockedTime(); HystrixRollingNumberEvent type = HystrixRollingNumberEvent.Success; HystrixRollingNumber counter = new HystrixRollingNumber(time, 20, 2); Assert.AreEqual(0, counter.GetCumulativeSum(type)); // iterate over 20 buckets on a queue sized for 2 for (int i = 0; i < 20; i++) { // first bucket counter.Increment(type); try { time.Increment(counter.BucketSizeInMilliseconds); } catch (Exception) { // ignore } Assert.AreEqual(2, counter.GetValues(type).Length); counter.GetValueOfLatestBucket(type); if (i == 5 || i == 15) { // simulate a reset occurring every once in a while // so we ensure the absolute sum is handling it okay counter.Reset(); } } // cumulative count should be 20 (for the number of loops above) regardless of buckets rolling Assert.AreEqual(20, counter.GetCumulativeSum(type)); }
public void RollingNumber_CumulativeCounterAfterRolling() { MockedTime time = new MockedTime(); HystrixRollingNumberEvent type = HystrixRollingNumberEvent.Success; HystrixRollingNumber counter = new HystrixRollingNumber(time, 20, 2); Assert.AreEqual(0, counter.GetCumulativeSum(type)); // iterate over 20 buckets on a queue sized for 2 for (int i = 0; i < 20; i++) { // first bucket counter.Increment(type); try { time.Increment(counter.BucketSizeInMilliseconds); } catch (Exception) { // ignore } Assert.AreEqual(2, counter.GetValues(type).Length); counter.GetValueOfLatestBucket(type); } // cumulative count should be 20 (for the number of loops above) regardless of buckets rolling Assert.AreEqual(20, counter.GetCumulativeSum(type)); }
public void RollingNumber_Rolling() { MockedTime time = new MockedTime(); HystrixRollingNumberEvent type = HystrixRollingNumberEvent.ThreadMaxActive; HystrixRollingNumber counter = new HystrixRollingNumber(time, 20, 2); // iterate over 20 buckets on a queue sized for 2 for (int i = 0; i < 20; i++) { // first bucket counter.GetCurrentBucket(); try { time.Increment(counter.BucketSizeInMilliseconds); } catch (Exception) { // ignore } Assert.AreEqual(2, counter.GetValues(type).Length); counter.GetValueOfLatestBucket(type); // System.out.println("Head: " + counter.Buckets.state.Get().head); // System.out.println("Tail: " + counter.Buckets.state.Get().tail); } }
public void RollingNumber_EmptyLatestValue() { MockedTime time = new MockedTime(); HystrixRollingNumberEvent type = HystrixRollingNumberEvent.ThreadMaxActive; HystrixRollingNumber counter = new HystrixRollingNumber(time, 200, 10); Assert.AreEqual(0, counter.GetValueOfLatestBucket(type)); }
public void RollingNumber_IncrementInSingleBucket() { MockedTime time = new MockedTime(); try { HystrixRollingNumber counter = new HystrixRollingNumber(time, 200, 10); // increment counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Failure); counter.Increment(HystrixRollingNumberEvent.Failure); counter.Increment(HystrixRollingNumberEvent.Timeout); // we should have 1 bucket Assert.AreEqual(1, counter.Buckets.Size); // the count should be 4 Assert.AreEqual(4, counter.Buckets.GetLast().GetAdder(HystrixRollingNumberEvent.Success).Sum()); Assert.AreEqual(2, counter.Buckets.GetLast().GetAdder(HystrixRollingNumberEvent.Failure).Sum()); Assert.AreEqual(1, counter.Buckets.GetLast().GetAdder(HystrixRollingNumberEvent.Timeout).Sum()); } catch (Exception e) { TestContext.WriteLine(e.ToString()); Assert.Fail("Exception: " + e.Message); } }
public void RollingNumber_MaxValue() { MockedTime time = new MockedTime(); try { HystrixRollingNumberEvent type = HystrixRollingNumberEvent.ThreadMaxActive; HystrixRollingNumber counter = new HystrixRollingNumber(time, 200, 10); counter.UpdateRollingMax(type, 10); // sleep to get to a new bucket time.Increment(counter.BucketSizeInMilliseconds); counter.UpdateRollingMax(type, 30); // sleep to get to a new bucket time.Increment(counter.BucketSizeInMilliseconds); counter.UpdateRollingMax(type, 40); // sleep to get to a new bucket time.Increment(counter.BucketSizeInMilliseconds); counter.UpdateRollingMax(type, 15); Assert.AreEqual(40, counter.GetRollingMaxValue(type)); } catch (Exception e) { TestContext.WriteLine(e.ToString()); Assert.Fail("Exception: " + e.Message); } }
public void RollingNumber_UpdateMax2() { MockedTime time = new MockedTime(); try { HystrixRollingNumber counter = new HystrixRollingNumber(time, 200, 10); // increment counter.UpdateRollingMax(HystrixRollingNumberEvent.ThreadMaxActive, 10); counter.UpdateRollingMax(HystrixRollingNumberEvent.ThreadMaxActive, 30); counter.UpdateRollingMax(HystrixRollingNumberEvent.ThreadMaxActive, 20); // we should have 1 bucket Assert.AreEqual(1, counter.Buckets.Size); // the count should be 30 Assert.AreEqual(30, counter.Buckets.GetLast().GetMaxUpdater(HystrixRollingNumberEvent.ThreadMaxActive).Max()); Assert.AreEqual(30, counter.GetRollingMaxValue(HystrixRollingNumberEvent.ThreadMaxActive)); // sleep to get to a new bucket time.Increment(counter.BucketSizeInMilliseconds * 3); counter.UpdateRollingMax(HystrixRollingNumberEvent.ThreadMaxActive, 30); counter.UpdateRollingMax(HystrixRollingNumberEvent.ThreadMaxActive, 30); counter.UpdateRollingMax(HystrixRollingNumberEvent.ThreadMaxActive, 50); // we should have 4 buckets Assert.AreEqual(4, counter.Buckets.Size); // the count Assert.AreEqual(50, counter.Buckets.GetLast().GetMaxUpdater(HystrixRollingNumberEvent.ThreadMaxActive).Max()); Assert.AreEqual(50, counter.GetValueOfLatestBucket(HystrixRollingNumberEvent.ThreadMaxActive)); // values per bucket long[] values = counter.GetValues(HystrixRollingNumberEvent.ThreadMaxActive); Assert.AreEqual(30, values[0]); // oldest bucket Assert.AreEqual(0, values[1]); Assert.AreEqual(0, values[2]); Assert.AreEqual(50, values[3]); // latest bucket } catch (Exception e) { TestContext.WriteLine(e.ToString()); Assert.Fail("Exception: " + e.Message); } }
public void RollingNumber_CounterRetrievalRefreshesBuckets() { MockedTime time = new MockedTime(); try { HystrixRollingNumber counter = new HystrixRollingNumber(time, 200, 10); // increment counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Failure); counter.Increment(HystrixRollingNumberEvent.Failure); // sleep to get to a new bucket time.Increment(counter.BucketSizeInMilliseconds * 3); // we should have 1 bucket since nothing has triggered the update of buckets in the elapsed time Assert.AreEqual(1, counter.Buckets.Size); // the total counts Assert.AreEqual(4, counter.GetRollingSum(HystrixRollingNumberEvent.Success)); Assert.AreEqual(2, counter.GetRollingSum(HystrixRollingNumberEvent.Failure)); // we should have 4 buckets as the counter 'gets' should have triggered the buckets being created to fill in time Assert.AreEqual(4, counter.Buckets.Size); // wait until window passes time.Increment(counter.TimeInMilliseconds); // the total counts should all be 0 (and the buckets cleared by the get, not only increment) Assert.AreEqual(0, counter.GetRollingSum(HystrixRollingNumberEvent.Success)); Assert.AreEqual(0, counter.GetRollingSum(HystrixRollingNumberEvent.Failure)); // increment counter.Increment(HystrixRollingNumberEvent.Success); // the total counts should now include only the last bucket after a reset since the window passed Assert.AreEqual(1, counter.GetRollingSum(HystrixRollingNumberEvent.Success)); Assert.AreEqual(0, counter.GetRollingSum(HystrixRollingNumberEvent.Failure)); } catch (Exception e) { TestContext.WriteLine(e.ToString()); Assert.Fail("Exception: " + e.Message); } }
public void RollingNumber_IncrementInMultipleBuckets() { MockedTime time = new MockedTime(); try { HystrixRollingNumber counter = new HystrixRollingNumber(time, 200, 10); // increment counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Failure); counter.Increment(HystrixRollingNumberEvent.Failure); counter.Increment(HystrixRollingNumberEvent.Timeout); counter.Increment(HystrixRollingNumberEvent.Timeout); counter.Increment(HystrixRollingNumberEvent.ShortCircuited); // sleep to get to a new bucket time.Increment(counter.BucketSizeInMilliseconds * 3); // increment counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Success); counter.Increment(HystrixRollingNumberEvent.Failure); counter.Increment(HystrixRollingNumberEvent.Failure); counter.Increment(HystrixRollingNumberEvent.Failure); counter.Increment(HystrixRollingNumberEvent.Timeout); counter.Increment(HystrixRollingNumberEvent.ShortCircuited); // we should have 4 buckets Assert.AreEqual(4, counter.Buckets.Size); // the counts of the last bucket Assert.AreEqual(2, counter.Buckets.GetLast().GetAdder(HystrixRollingNumberEvent.Success).Sum()); Assert.AreEqual(3, counter.Buckets.GetLast().GetAdder(HystrixRollingNumberEvent.Failure).Sum()); Assert.AreEqual(1, counter.Buckets.GetLast().GetAdder(HystrixRollingNumberEvent.Timeout).Sum()); Assert.AreEqual(1, counter.Buckets.GetLast().GetAdder(HystrixRollingNumberEvent.ShortCircuited).Sum()); // the total counts Assert.AreEqual(6, counter.GetRollingSum(HystrixRollingNumberEvent.Success)); Assert.AreEqual(5, counter.GetRollingSum(HystrixRollingNumberEvent.Failure)); Assert.AreEqual(3, counter.GetRollingSum(HystrixRollingNumberEvent.Timeout)); Assert.AreEqual(2, counter.GetRollingSum(HystrixRollingNumberEvent.ShortCircuited)); // wait until window passes time.Increment(counter.TimeInMilliseconds); // increment counter.Increment(HystrixRollingNumberEvent.Success); // the total counts should now include only the last bucket after a reset since the window passed Assert.AreEqual(1, counter.GetRollingSum(HystrixRollingNumberEvent.Success)); Assert.AreEqual(0, counter.GetRollingSum(HystrixRollingNumberEvent.Failure)); Assert.AreEqual(0, counter.GetRollingSum(HystrixRollingNumberEvent.Timeout)); } catch (Exception e) { TestContext.WriteLine(e.ToString()); Assert.Fail("Exception: " + e.Message); } }
private void TestCounterType(HystrixRollingNumberEvent type) { MockedTime time = new MockedTime(); try { HystrixRollingNumber counter = new HystrixRollingNumber(time, 200, 10); // increment counter.Increment(type); // we should have 1 bucket Assert.AreEqual(1, counter.Buckets.Size); // the count should be 1 Assert.AreEqual(1, counter.Buckets.GetLast().GetAdder(type).Sum()); Assert.AreEqual(1, counter.GetRollingSum(type)); // sleep to get to a new bucket time.Increment(counter.BucketSizeInMilliseconds * 3); // increment again in latest bucket counter.Increment(type); // we should have 4 buckets Assert.AreEqual(4, counter.Buckets.Size); // the counts of the last bucket Assert.AreEqual(1, counter.Buckets.GetLast().GetAdder(type).Sum()); // the total counts Assert.AreEqual(2, counter.GetRollingSum(type)); } catch (Exception e) { TestContext.WriteLine(e.ToString()); Assert.Fail("Exception: " + e.Message); } }
public void RollingNumber_CumulativeCounterAfterRollingAndReset3() { MockedTime time = new MockedTime(); HystrixRollingNumberEvent type = HystrixRollingNumberEvent.Success; HystrixRollingNumber counter = new HystrixRollingNumber(time, 20, 2); Assert.AreEqual(0, counter.GetCumulativeSum(type)); counter.Increment(type); counter.Increment(type); counter.Increment(type); // iterate over 20 buckets on a queue sized for 2 for (int i = 0; i < 20; i++) { try { time.Increment(counter.BucketSizeInMilliseconds); } catch (Exception) { // ignore } } // since we are rolling over the buckets it should reset naturally // no increments during the loop, just some before and after counter.Increment(type); counter.Increment(type); // cumulative count should be 5 regardless of buckets rolling Assert.AreEqual(5, counter.GetCumulativeSum(type)); }
public void RollingNumber_EmptyBucketsFillIn() { MockedTime time = new MockedTime(); try { HystrixRollingNumber counter = new HystrixRollingNumber(time, 200, 10); // add 1 counter.Increment(HystrixRollingNumberEvent.Success); // we should have 1 bucket Assert.AreEqual(1, counter.Buckets.Size); // wait past 3 bucket time periods (the 1st bucket then 2 empty ones) time.Increment(counter.BucketSizeInMilliseconds * 3); // add another counter.Increment(HystrixRollingNumberEvent.Success); // we should have 4 (1 + 2 empty + 1 new one) buckets Assert.AreEqual(4, counter.Buckets.Size); } catch (Exception e) { TestContext.WriteLine(e.ToString()); Assert.Fail("Exception: " + e.Message); } }
public void RollingNumber_EmptySum() { MockedTime time = new MockedTime(); HystrixRollingNumberEvent type = HystrixRollingNumberEvent.Collapsed; HystrixRollingNumber counter = new HystrixRollingNumber(time, 200, 10); Assert.AreEqual(0, counter.GetRollingSum(type)); }