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Hystrix queue size for HystrixObservableCommand?

When your Hystrix command extends from HystrixCommand, you can specify the queue size for the thread pool as follows:

..
.andThreadPoolPropertiesDefaults(HystrixThreadPoolProperties.Setter()
                            .withMaxQueueSize(10)
                            .withQueueSizeRejectionThreshold(10));

But when expanding from HystrixObservableCommandthere (obviously) there is no threadpool to configure the queue size for. But what if you still want to allow queued requests for HystrixObservableCommandwhen it ExecutionIsolationSemaphoreMaxConcurrentRequestsreaches its limit?

  • Does Hystrix provide any support for this, or is it something you need to roll on your own?
  • If the latter, then how could you realize this in an idiomatic way?
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Source: https://habr.com/ru/post/1661454/

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