public void TestFallbackMissing() { IHystrixCommandGroupKey groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-K"); IHystrixThreadPoolKey threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-K"); IHystrixCommandKey key = HystrixCommandKeyDefault.AsKey("RollingCounter-K"); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); stream.StartCachingStreamValuesIfUnstarted(); CountdownEvent latch = new CountdownEvent(1); stream.Observe().Take(5).Subscribe(GetSubscriber(output, latch)); CommandStreamTest.Command cmd = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 20, HystrixEventType.FALLBACK_MISSING); cmd.Observe(); try { Assert.True(latch.Wait(10000)); } catch (Exception) { Assert.False(true, "Interrupted ex"); } Assert.Equal(2, stream.Latest.Length); Assert.Equal(1, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public void Before() { this.context = HystrixRequestContext.InitializeContext(); HystrixCommandMetrics.Reset(); HystrixThreadPoolMetrics.Reset(); HystrixCollapserMetrics.Reset(); // clear collapsers RequestCollapserFactory.Reset(); // clear circuit breakers HystrixCircuitBreakerFactory.Reset(); HystrixPlugins.Reset(); HystrixOptionsFactory.Reset(); // clear up all streams CumulativeCollapserEventCounterStream.Reset(); CumulativeCommandEventCounterStream.Reset(); CumulativeThreadPoolEventCounterStream.Reset(); RollingCollapserBatchSizeDistributionStream.Reset(); RollingCollapserEventCounterStream.Reset(); RollingCommandEventCounterStream.Reset(); RollingCommandLatencyDistributionStream.Reset(); RollingCommandMaxConcurrencyStream.Reset(); RollingCommandUserLatencyDistributionStream.Reset(); RollingThreadPoolEventCounterStream.Reset(); RollingThreadPoolMaxConcurrencyStream.Reset(); }
public RollingThreadPoolEventCounterStreamTest(ITestOutputHelper output) : base() { this.output = output; HystrixThreadPoolCompletionStream.Reset(); RollingThreadPoolEventCounterStream.Reset(); }
public async Task TestMultipleEventsOverTimeGetStoredAndAgeOut() { var groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-M"); var threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-M"); var key = HystrixCommandKeyDefault.AsKey("RollingCounter-M"); var latch = new CountdownEvent(1); var observer = new LatchedObserver(output, latch); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 250); latchSubscription = stream.Observe().Take(20 + LatchedObserver.STABLE_TICK_COUNT).Subscribe(observer); Assert.True(Time.WaitUntil(() => observer.StreamRunning, 2000), "Stream failed to start"); var cmd1 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS, 20); var cmd2 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 10); await cmd1.Observe(); await cmd2.Observe(); Assert.True(latch.Wait(10000), "CountdownEvent was not set!"); output.WriteLine("ReqLog : " + HystrixRequestLog.CurrentRequestLog.GetExecutedCommandsAsString()); // all commands should have aged out Assert.Equal(2, stream.Latest.Length); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public void TestThreadPoolRejected() { IHystrixCommandGroupKey groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-I"); IHystrixThreadPoolKey threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-I"); IHystrixCommandKey key = HystrixCommandKeyDefault.AsKey("RollingCounter-I"); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); stream.StartCachingStreamValuesIfUnstarted(); CountdownEvent latch = new CountdownEvent(1); stream.Observe().Take(5).Subscribe(GetSubscriber(output, latch)); // 10 commands will saturate threadpools when called concurrently. // submit 2 more requests and they should be THREADPOOL_REJECTED // should see 10 SUCCESSes, 2 THREADPOOL_REJECTED and 2 FALLBACK_SUCCESSes List <CommandStreamTest.Command> saturators = new List <CommandStreamTest.Command>(); for (int i = 0; i < 10; i++) { saturators.Add(CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS, 200)); } CommandStreamTest.Command rejected1 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS, 0); CommandStreamTest.Command rejected2 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS, 0); foreach (CommandStreamTest.Command saturator in saturators) { saturator.Observe(); } try { Time.Wait(100); } catch (Exception ie) { Assert.False(true, ie.Message); } rejected1.Observe(); rejected2.Observe(); try { Assert.True(latch.Wait(10000)); } catch (Exception) { Assert.False(true, "Interrupted ex"); } output.WriteLine("ReqLog : " + HystrixRequestLog.CurrentRequestLog.GetExecutedCommandsAsString()); Assert.True(rejected1.IsResponseThreadPoolRejected); Assert.True(rejected2.IsResponseThreadPoolRejected); // none of these got executed on a thread-pool, so thread pool metrics should be 0 Assert.Equal(2, stream.Latest.Length); Assert.Equal(10, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(2, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public async Task TestRequestFromCache() { var groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-F"); var threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-F"); var key = HystrixCommandKeyDefault.AsKey("RollingCounter-F"); var latch = new CountdownEvent(1); var observer = new LatchedObserver(output, latch); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); latchSubscription = stream.Observe().Subscribe(observer); Assert.True(Time.WaitUntil(() => observer.StreamRunning, 2000), "Stream failed to start"); var cmd1 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS, 0); var cmd2 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.RESPONSE_FROM_CACHE); var cmd3 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.RESPONSE_FROM_CACHE); await cmd1.Observe(); await cmd2.Observe(); await cmd3.Observe(); Assert.True(WaitForLatchedObserverToUpdate(observer, 1, 2000, output), "Latch took to long to update"); // RESPONSE_FROM_CACHE should not show up at all in thread pool counters - just the success Assert.Equal(2, stream.Latest.Length); Assert.Equal(1, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public void TestSemaphoreRejected() { IHystrixCommandGroupKey groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-H"); IHystrixThreadPoolKey threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-H"); IHystrixCommandKey key = HystrixCommandKeyDefault.AsKey("RollingCounter-H"); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); stream.StartCachingStreamValuesIfUnstarted(); CountdownEvent latch = new CountdownEvent(1); stream.Observe().Take(5).Subscribe(new LatchedObserver(output, latch)); // 10 commands will saturate semaphore when called from different threads. // submit 2 more requests and they should be SEMAPHORE_REJECTED // should see 10 SUCCESSes, 2 SEMAPHORE_REJECTED and 2 FALLBACK_SUCCESSes List <Command> saturators = new List <Command>(); for (int i = 0; i < 10; i++) { saturators.Add(Command.From(groupKey, key, HystrixEventType.SUCCESS, 500, ExecutionIsolationStrategy.SEMAPHORE)); } Command rejected1 = Command.From(groupKey, key, HystrixEventType.SUCCESS, 0, ExecutionIsolationStrategy.SEMAPHORE); Command rejected2 = Command.From(groupKey, key, HystrixEventType.SUCCESS, 0, ExecutionIsolationStrategy.SEMAPHORE); foreach (Command saturator in saturators) { Task t = new Task( () => { saturator.Observe(); }, CancellationToken.None, TaskCreationOptions.LongRunning); t.Start(); } try { Time.Wait(100); } catch (Exception ie) { Assert.False(true, ie.Message); } rejected1.Observe(); rejected2.Observe(); Assert.True(latch.Wait(10000), "CountdownEvent was not set!"); output.WriteLine("ReqLog : " + HystrixRequestLog.CurrentRequestLog.GetExecutedCommandsAsString()); Assert.True(rejected1.IsResponseSemaphoreRejected); Assert.True(rejected2.IsResponseSemaphoreRejected); // none of these got executed on a thread-pool, so thread pool metrics should be 0 Assert.Equal(2, stream.Latest.Length); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
internal static void Reset() { RollingThreadPoolEventCounterStream.Reset(); CumulativeThreadPoolEventCounterStream.Reset(); RollingThreadPoolMaxConcurrencyStream.Reset(); Metrics.Clear(); }
public override void Dispose() { latchSubscription?.Dispose(); stream?.Unsubscribe(); latchSubscription = null; stream = null; base.Dispose(); }
private HystrixThreadPoolMetrics(IHystrixThreadPoolKey threadPoolKey, IHystrixTaskScheduler threadPool, IHystrixThreadPoolOptions properties) : base(null) { this.threadPoolKey = threadPoolKey; this.threadPool = threadPool; this.properties = properties; rollingCounterStream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, properties); cumulativeCounterStream = CumulativeThreadPoolEventCounterStream.GetInstance(threadPoolKey, properties); rollingThreadPoolMaxConcurrencyStream = RollingThreadPoolMaxConcurrencyStream.GetInstance(threadPoolKey, properties); }
public void TestFallbackRejection() { IHystrixCommandGroupKey groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-L"); IHystrixThreadPoolKey threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-L"); IHystrixCommandKey key = HystrixCommandKeyDefault.AsKey("RollingCounter-L"); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); stream.StartCachingStreamValuesIfUnstarted(); CountdownEvent latch = new CountdownEvent(1); stream.Observe().Take(5).Subscribe(GetSubscriber(output, latch)); // fallback semaphore size is 5. So let 5 commands saturate that semaphore, then // let 2 more commands go to fallback. they should get rejected by the fallback-semaphore List <CommandStreamTest.Command> fallbackSaturators = new List <CommandStreamTest.Command>(); for (int i = 0; i < 5; i++) { fallbackSaturators.Add(CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 20, HystrixEventType.FALLBACK_SUCCESS, 400)); } CommandStreamTest.Command rejection1 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 20, HystrixEventType.FALLBACK_SUCCESS, 0); CommandStreamTest.Command rejection2 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 20, HystrixEventType.FALLBACK_SUCCESS, 0); foreach (CommandStreamTest.Command saturator in fallbackSaturators) { saturator.Observe(); } try { Time.Wait(70); } catch (Exception ie) { Assert.False(true, ie.Message); } rejection1.Observe(); rejection2.Observe(); try { Assert.True(latch.Wait(10000)); } catch (Exception) { Assert.False(true, "Interrupted ex"); } // all 7 commands executed on-thread, so should be executed according to thread-pool metrics Assert.Equal(2, stream.Latest.Length); Assert.Equal(7, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public void TestShortCircuited() { IHystrixCommandGroupKey groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-G"); IHystrixThreadPoolKey threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-G"); IHystrixCommandKey key = HystrixCommandKeyDefault.AsKey("RollingCounter-G"); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); stream.StartCachingStreamValuesIfUnstarted(); CountdownEvent latch = new CountdownEvent(1); stream.Observe().Take(5).Subscribe(GetSubscriber(output, latch)); //3 failures in a row will trip circuit. let bucket roll once then submit 2 requests. //should see 3 FAILUREs and 2 SHORT_CIRCUITs and each should see a FALLBACK_SUCCESS CommandStreamTest.Command failure1 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 20); CommandStreamTest.Command failure2 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 20); CommandStreamTest.Command failure3 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 20); CommandStreamTest.Command shortCircuit1 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS); CommandStreamTest.Command shortCircuit2 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS); failure1.Observe(); failure2.Observe(); failure3.Observe(); Time.Wait(150); shortCircuit1.Observe(); shortCircuit2.Observe(); try { Assert.True(latch.Wait(10000)); } catch (Exception) { Assert.False(true, "Interrupted ex"); } output.WriteLine("ReqLog : " + HystrixRequestLog.CurrentRequestLog.GetExecutedCommandsAsString()); Assert.True(shortCircuit1.IsResponseShortCircuited); Assert.True(shortCircuit2.IsResponseShortCircuited); //only the FAILUREs should show up in thread pool counters Assert.Equal(2, stream.Latest.Length); Assert.Equal(3, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public void TestEmptyStreamProducesZeros() { var threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-A"); var latch = new CountdownEvent(1); var observer = new LatchedObserver(output, latch); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); latchSubscription = stream.Observe().Subscribe(observer); Assert.True(Time.WaitUntil(() => observer.StreamRunning, 2000), "Stream failed to start"); Assert.True(WaitForLatchedObserverToUpdate(observer, 1, 2000, output), "Latch took to long to update"); Assert.Equal(2, stream.Latest.Length); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.EXECUTED) + stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public async void TestThreadPoolRejected() { var groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-I"); var threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-I"); var key = HystrixCommandKeyDefault.AsKey("RollingCounter-I"); var latch = new CountdownEvent(1); var observer = new LatchedObserver(output, latch); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); latchSubscription = stream.Observe().Subscribe(observer); Assert.True(Time.WaitUntil(() => observer.StreamRunning, 2000), "Stream failed to start"); // 10 commands will saturate threadpools when called concurrently. // submit 2 more requests and they should be THREADPOOL_REJECTED // should see 10 SUCCESSes, 2 THREADPOOL_REJECTED and 2 FALLBACK_SUCCESSes var saturators = new List <Command>(); for (int i = 0; i < 10; i++) { saturators.Add(CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS, 500)); } var rejected1 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS, 0); var rejected2 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS, 0); var tasks = new List <Task>(); foreach (var saturator in saturators) { tasks.Add(saturator.ExecuteAsync()); } await Task.Delay(50); await rejected1.Observe(); await rejected2.Observe(); Task.WaitAll(tasks.ToArray()); Assert.True(WaitForLatchedObserverToUpdate(observer, 1, 2000, output), "Latch took to long to update"); Assert.True(rejected1.IsResponseThreadPoolRejected, "Command1 IsResponseThreadPoolRejected"); Assert.True(rejected2.IsResponseThreadPoolRejected, "Command2 IsResponseThreadPoolRejected"); // none of these got executed on a thread-pool, so thread pool metrics should be 0 Assert.Equal(2, stream.Latest.Length); Assert.Equal(10, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(2, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public async void TestSemaphoreRejected() { IHystrixCommandGroupKey groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-H"); IHystrixThreadPoolKey threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-H"); IHystrixCommandKey key = HystrixCommandKeyDefault.AsKey("RollingCounter-H"); CountdownEvent latch = new CountdownEvent(1); var observer = new LatchedObserver(output, latch); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); latchSubscription = stream.Observe().Subscribe(observer); Assert.True(Time.WaitUntil(() => observer.StreamRunning, 2000), "Stream failed to start"); // 10 commands will saturate semaphore when called from different threads. // submit 2 more requests and they should be SEMAPHORE_REJECTED // should see 10 SUCCESSes, 2 SEMAPHORE_REJECTED and 2 FALLBACK_SUCCESSes List <Command> saturators = new List <Command>(); for (int i = 0; i < 10; i++) { saturators.Add(Command.From(groupKey, key, HystrixEventType.SUCCESS, 500, ExecutionIsolationStrategy.SEMAPHORE)); } Command rejected1 = Command.From(groupKey, key, HystrixEventType.SUCCESS, 0, ExecutionIsolationStrategy.SEMAPHORE); Command rejected2 = Command.From(groupKey, key, HystrixEventType.SUCCESS, 0, ExecutionIsolationStrategy.SEMAPHORE); List <Task> tasks = new List <Task>(); foreach (Command saturator in saturators) { tasks.Add(Task.Run(() => saturator.Execute())); } await Task.Delay(50); await Task.Run(() => rejected1.Execute()); await Task.Run(() => rejected2.Execute()); Task.WaitAll(tasks.ToArray()); Assert.True(WaitForLatchedObserverToUpdate(observer, 1, 2000, output), "Latch took to long to update"); Assert.True(rejected1.IsResponseSemaphoreRejected, "rejected1 not rejected"); Assert.True(rejected2.IsResponseSemaphoreRejected, "rejected2 not rejected"); // none of these got executed on a thread-pool, so thread pool metrics should be 0 Assert.Equal(2, stream.Latest.Length); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public static void ShutdownThreads() { CumulativeCommandEventCounterStream.Reset(); CumulativeThreadPoolEventCounterStream.Reset(); RollingCommandEventCounterStream.Reset(); RollingThreadPoolEventCounterStream.Reset(); RollingCollapserEventCounterStream.Reset(); RollingCollapserEventCounterStream.Reset(); HealthCountsStream.Reset(); RollingCollapserBatchSizeDistributionStream.Reset(); RollingCommandLatencyDistributionStream.Reset(); RollingCommandUserLatencyDistributionStream.Reset(); RollingCommandMaxConcurrencyStream.Reset(); RollingThreadPoolMaxConcurrencyStream.Reset(); }
public async void TestFallbackRejection() { var groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-L"); var threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-L"); var key = HystrixCommandKeyDefault.AsKey("RollingCounter-L"); var latch = new CountdownEvent(1); var observer = new LatchedObserver(output, latch); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); latchSubscription = stream.Observe().Subscribe(observer); Assert.True(Time.WaitUntil(() => observer.StreamRunning, 2000), "Stream failed to start"); // fallback semaphore size is 5. So let 5 commands saturate that semaphore, then // let 2 more commands go to fallback. they should get rejected by the fallback-semaphore var fallbackSaturators = new List <Command>(); for (int i = 0; i < 5; i++) { fallbackSaturators.Add(CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 0, HystrixEventType.FALLBACK_SUCCESS, 500)); } var rejection1 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 0, HystrixEventType.FALLBACK_SUCCESS, 0); var rejection2 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 0, HystrixEventType.FALLBACK_SUCCESS, 0); var tasks = new List <Task>(); foreach (var saturator in fallbackSaturators) { tasks.Add(saturator.ExecuteAsync()); } await Task.Delay(50); output.WriteLine("ReqLog : " + HystrixRequestLog.CurrentRequestLog.GetExecutedCommandsAsString()); await Assert.ThrowsAsync <HystrixRuntimeException>(async() => await rejection1.Observe()); await Assert.ThrowsAsync <HystrixRuntimeException>(async() => await rejection2.Observe()); Task.WaitAll(tasks.ToArray()); Assert.True(WaitForLatchedObserverToUpdate(observer, 1, 2000, output), "Latch took to long to update"); Assert.Equal(2, stream.Latest.Length); Assert.Equal(7, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public void TestEmptyStreamProducesZeros() { IHystrixCommandGroupKey groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-A"); IHystrixThreadPoolKey threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-A"); IHystrixCommandKey key = HystrixCommandKeyDefault.AsKey("RollingCounter-A"); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); stream.StartCachingStreamValuesIfUnstarted(); CountdownEvent latch = new CountdownEvent(1); stream.Observe().Take(5).Subscribe(new LatchedObserver(output, latch)); // no writes Assert.True(latch.Wait(10000), "CountdownEvent was not set!"); Assert.Equal(2, stream.Latest.Length); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.EXECUTED) + stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public async Task TestShortCircuited() { var groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-G"); var threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-G"); var key = HystrixCommandKeyDefault.AsKey("RollingCounter-G"); var latch = new CountdownEvent(1); var observer = new LatchedObserver(output, latch); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); latchSubscription = stream.Observe().Subscribe(observer); Assert.True(Time.WaitUntil(() => observer.StreamRunning, 2000), "Stream failed to start"); // 3 failures in a row will trip circuit. let bucket roll once then submit 2 requests. // should see 3 FAILUREs and 2 SHORT_CIRCUITs and each should see a FALLBACK_SUCCESS var failure1 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 0); var failure2 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 0); var failure3 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 0); var shortCircuit1 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS); var shortCircuit2 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS); await failure1.Observe(); await failure2.Observe(); await failure3.Observe(); Assert.True(WaitForHealthCountToUpdate(key.Name, 500, output), "Health count stream update took to long"); await shortCircuit1.Observe(); await shortCircuit2.Observe(); Assert.True(WaitForLatchedObserverToUpdate(observer, 1, 2000, output), "Latch took to long to update"); Assert.True(shortCircuit1.IsResponseShortCircuited); Assert.True(shortCircuit2.IsResponseShortCircuited); // only the FAILUREs should show up in thread pool counters Assert.Equal(2, stream.Latest.Length); Assert.Equal(3, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public void ShouldReturnOneExecutedTask() { // given var stream = RollingThreadPoolEventCounterStream.GetInstance(tpKey, 10, 100); stream.StartCachingStreamValuesIfUnstarted(); var cmd = new NoOpHystrixCommand(output); cmd.Execute(); Time.Wait(125); ICollection <HystrixThreadPoolMetrics> instances = HystrixThreadPoolMetrics.GetInstances(); // then Assert.Equal(1, instances.Count); HystrixThreadPoolMetrics metrics = instances.First(); Assert.Equal(1, metrics.RollingCountThreadsExecuted); }
public async void TestSingleFailure() { var groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-C"); var threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-C"); var key = HystrixCommandKeyDefault.AsKey("RollingCounter-C"); var latch = new CountdownEvent(1); var observer = new LatchedObserver(output, latch); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); latchSubscription = stream.Observe().Subscribe(observer); Assert.True(Time.WaitUntil(() => observer.StreamRunning, 2000), "Stream failed to start"); var cmd = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.FAILURE, 20); await cmd.Observe(); Assert.True(WaitForLatchedObserverToUpdate(observer, 1, 2000, output), "Latch took to long to update"); Assert.Equal(2, stream.Latest.Length); Assert.Equal(1, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public async void TestSingleBadRequest() { IHystrixCommandGroupKey groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-E"); IHystrixThreadPoolKey threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-E"); IHystrixCommandKey key = HystrixCommandKeyDefault.AsKey("RollingCounter-E"); CountdownEvent latch = new CountdownEvent(1); var observer = new LatchedObserver(output, latch); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); latchSubscription = stream.Observe().Subscribe(observer); Assert.True(Time.WaitUntil(() => observer.StreamRunning, 2000), "Stream failed to start"); Command cmd = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.BAD_REQUEST); await Assert.ThrowsAsync <HystrixBadRequestException>(async() => await cmd.Observe()); Assert.True(WaitForLatchedObserverToUpdate(observer, 1, 2000, output), "Latch took to long to update"); Assert.Equal(2, stream.Latest.Length); Assert.Equal(1, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public async Task ShouldReturnOneExecutedTask() { // given var stream = RollingThreadPoolEventCounterStream.GetInstance(TpKey, 10, 100); stream.StartCachingStreamValuesIfUnstarted(); var cmd = new NoOpHystrixCommand(output); await cmd.ExecuteAsync(); Time.Wait(250); var instances = HystrixThreadPoolMetrics.GetInstances(); // then output.WriteLine($"Instance count: {instances.Count}"); Assert.Equal(1, instances.Count); var metrics = instances.First(); output.WriteLine($"RollingCountThreadsExecuted: {metrics.RollingCountThreadsExecuted}"); Assert.Equal(1, metrics.RollingCountThreadsExecuted); }
public void TestSingleSuccess() { IHystrixCommandGroupKey groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-B"); IHystrixThreadPoolKey threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-B"); IHystrixCommandKey key = HystrixCommandKeyDefault.AsKey("RollingCounter-B"); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); stream.StartCachingStreamValuesIfUnstarted(); CountdownEvent latch = new CountdownEvent(1); stream.Observe().Take(5).Subscribe(new LatchedObserver(output, latch)); Command cmd = Command.From(groupKey, key, HystrixEventType.SUCCESS, 20); cmd.Observe(); Assert.True(latch.Wait(10000), "CountdownEvent was not set!"); Assert.Equal(2, stream.Latest.Length); Assert.Equal(1, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }
public void TestRequestFromCache() { IHystrixCommandGroupKey groupKey = HystrixCommandGroupKeyDefault.AsKey("ThreadPool-F"); IHystrixThreadPoolKey threadPoolKey = HystrixThreadPoolKeyDefault.AsKey("ThreadPool-F"); IHystrixCommandKey key = HystrixCommandKeyDefault.AsKey("RollingCounter-F"); stream = RollingThreadPoolEventCounterStream.GetInstance(threadPoolKey, 10, 500); stream.StartCachingStreamValuesIfUnstarted(); CountdownEvent latch = new CountdownEvent(1); stream.Observe().Take(5).Subscribe(GetSubscriber(output, latch)); CommandStreamTest.Command cmd1 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.SUCCESS, 20); CommandStreamTest.Command cmd2 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.RESPONSE_FROM_CACHE); CommandStreamTest.Command cmd3 = CommandStreamTest.Command.From(groupKey, key, HystrixEventType.RESPONSE_FROM_CACHE); cmd1.Observe(); cmd2.Observe(); cmd3.Observe(); try { Assert.True(latch.Wait(10000)); } catch (Exception) { Assert.False(true, "Interrupted ex"); } output.WriteLine("ReqLog : " + HystrixRequestLog.CurrentRequestLog.GetExecutedCommandsAsString()); //RESPONSE_FROM_CACHE should not show up at all in thread pool counters - just the success Assert.Equal(2, stream.Latest.Length); Assert.Equal(1, stream.GetLatestCount(ThreadPoolEventType.EXECUTED)); Assert.Equal(0, stream.GetLatestCount(ThreadPoolEventType.REJECTED)); }