HystrixRuntimeException: exécution de secours de TestCommand rejetée

Question

J'utilise la version Hystrix 1.5.5. Quand je charge des tests de plus grande charge comme 1000 threads/seconde, toutes les demandes passent par la méthode de repli. En attendant, je reçois aussi des exceptions. Pourquoi ai-je cette exception ci-dessous. Commande de test est ma classe personnalisée Hystrix

Caused by: com.netflix.hystrix.exception.HystrixRuntimeException: TestCommand fallback execution rejected. 
     at com.netflix.hystrix.AbstractCommand.handleFallbackRejectionByEmittingError(AbstractCommand.java:1026) 
     at com.netflix.hystrix.AbstractCommand.getFallbackOrThrowException(AbstractCommand.java:858) 
     at com.netflix.hystrix.AbstractCommand.handleThreadPoolRejectionViaFallback(AbstractCommand.java:976) 
     at com.netflix.hystrix.AbstractCommand.access$400(AbstractCommand.java:59) 
     at com.netflix.hystrix.AbstractCommand$12.call(AbstractCommand.java:593) 
     at com.netflix.hystrix.AbstractCommand$12.call(AbstractCommand.java:587) 
     at rx.internal.operators.OperatorOnErrorResumeNextViaFunction$4.onError(OperatorOnErrorResumeNextViaFunction.java:140) 
     at rx.internal.operators.OperatorDoOnEach$1.onError(OperatorDoOnEach.java:72) 
     at rx.internal.operators.OperatorDoOnEach$1.onError(OperatorDoOnEach.java:72) 
     at com.netflix.hystrix.AbstractCommand$HystrixObservableTimeoutOperator$3.onError(AbstractCommand.java:1173) 
     at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:54) 
     at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) 
     at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) 
     at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) 
     at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) 
     at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) 
     at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) 

Answer 1

Vous devez vérifier la valeur maxConcurrentRequests à la fois l'exécution & fallback. Ci-dessous url discute sur cette question.

https://github.com/Netflix/Hystrix/issues/796