Feign client with Hystrix throwing exception












0















I have requirement to call a service multiple times (>50 times) and aggregate the responses. So I have decided to go for CompletableFuture with Async and CustomExecuter (its own threadpool) to make it faster instead of waiting for the service to respond.



I am using feign client with ApacheHTTP and Hystrix on the classpath. I can see it is working sometimes and sometimes I am getting exceptions as the circuit is open.



Can somebody tell me if it is a correct approach to make parallel calls to service or shall I go with sequential like calling the service in loop? Keeping in mind that thread pool should not be exhausted. I have kept below configuration.



apacheHttpClient:
maxConnections: 10

hystrix:
threadpool:
default:
coreSize: 100

executorService:
threadPool: 50









share|improve this question





























    0















    I have requirement to call a service multiple times (>50 times) and aggregate the responses. So I have decided to go for CompletableFuture with Async and CustomExecuter (its own threadpool) to make it faster instead of waiting for the service to respond.



    I am using feign client with ApacheHTTP and Hystrix on the classpath. I can see it is working sometimes and sometimes I am getting exceptions as the circuit is open.



    Can somebody tell me if it is a correct approach to make parallel calls to service or shall I go with sequential like calling the service in loop? Keeping in mind that thread pool should not be exhausted. I have kept below configuration.



    apacheHttpClient:
    maxConnections: 10

    hystrix:
    threadpool:
    default:
    coreSize: 100

    executorService:
    threadPool: 50









    share|improve this question



























      0












      0








      0








      I have requirement to call a service multiple times (>50 times) and aggregate the responses. So I have decided to go for CompletableFuture with Async and CustomExecuter (its own threadpool) to make it faster instead of waiting for the service to respond.



      I am using feign client with ApacheHTTP and Hystrix on the classpath. I can see it is working sometimes and sometimes I am getting exceptions as the circuit is open.



      Can somebody tell me if it is a correct approach to make parallel calls to service or shall I go with sequential like calling the service in loop? Keeping in mind that thread pool should not be exhausted. I have kept below configuration.



      apacheHttpClient:
      maxConnections: 10

      hystrix:
      threadpool:
      default:
      coreSize: 100

      executorService:
      threadPool: 50









      share|improve this question
















      I have requirement to call a service multiple times (>50 times) and aggregate the responses. So I have decided to go for CompletableFuture with Async and CustomExecuter (its own threadpool) to make it faster instead of waiting for the service to respond.



      I am using feign client with ApacheHTTP and Hystrix on the classpath. I can see it is working sometimes and sometimes I am getting exceptions as the circuit is open.



      Can somebody tell me if it is a correct approach to make parallel calls to service or shall I go with sequential like calling the service in loop? Keeping in mind that thread pool should not be exhausted. I have kept below configuration.



      apacheHttpClient:
      maxConnections: 10

      hystrix:
      threadpool:
      default:
      coreSize: 100

      executorService:
      threadPool: 50






      java asynchronous hystrix completable-future netflix-feign






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      edited Nov 21 '18 at 9:04









      Didier L

      7,79423167




      7,79423167










      asked Nov 19 '18 at 12:59









      Vivek TiwariVivek Tiwari

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          Have you considered feign w/Vertex? "Brings you the best of two worlds together : concise syntax of Feign to write client side API on fast, asynchronous and non-blocking HTTP client of Vertx." https://github.com/OpenFeign/feign-vertx






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            Have you considered feign w/Vertex? "Brings you the best of two worlds together : concise syntax of Feign to write client side API on fast, asynchronous and non-blocking HTTP client of Vertx." https://github.com/OpenFeign/feign-vertx






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              Have you considered feign w/Vertex? "Brings you the best of two worlds together : concise syntax of Feign to write client side API on fast, asynchronous and non-blocking HTTP client of Vertx." https://github.com/OpenFeign/feign-vertx






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                Have you considered feign w/Vertex? "Brings you the best of two worlds together : concise syntax of Feign to write client side API on fast, asynchronous and non-blocking HTTP client of Vertx." https://github.com/OpenFeign/feign-vertx






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                Have you considered feign w/Vertex? "Brings you the best of two worlds together : concise syntax of Feign to write client side API on fast, asynchronous and non-blocking HTTP client of Vertx." https://github.com/OpenFeign/feign-vertx







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                answered Dec 11 '18 at 20:23









                Shannon Moon ShanShannon Moon Shan

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