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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                **熔斷機制**是應對雪崩效應的一種微服務鏈路保護機制。 <br/> 當扇出鏈路的某個微服務不可用或者響應時間太長時,會進行服務的降級,<mark>進而熔斷該節點微服務的調用,快速返回 <em>錯誤</em> 的響應信息</mark>。當檢測到該節點微服務調用響應正常后恢復調用鏈路。 <br/> 在SpringCloud框架里熔斷機制通過Hystrix實現。Hystrix會監控微服務間調用的狀況,當失敗的調用到一定閾值,默認是5秒內20次調用失敗就會啟動熔斷機制。熔斷機制的注解是`@HystrixCommand`。
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