The Hystrix timeout of 2000ms for the command xxx is set lower than the combination of the Ribbon read and connect timeout, 4000ms.

該警告是在org.springframework.cloud.netflix.zuul.filters.route.support.AbstractRibbonCommand類的getHystrixTimeout方法中輸出的，意思是斷路器（Hystrix）設置的超時時間要比Ribbon設置的超時時間短。

hystrix超時設置：

hystrix.command.default.execution.isolation.thread.timeoutInMilliseconds = 6000  # 默認超時時間
hystrix.command.xxx.execution.isolation.thread.timeoutInMilliseconds = 6000      # 具體應用的超時時間

 

ribbon超時時間計算：ribbonTimeout = (ribbonReadTimeout + ribbonConnectTimeout) * (maxAutoRetries + 1) * (maxAutoRetriesNextServer + 1)

ribbon全局設置，超時時間：(2000+1000)*(0+1)*(1+1)=6000：

ribbon.ReadTimeout = 2000            # 訪問超時，單位毫秒，默認1000
ribbon.ConnectTimeout = 1000         # 連接超時，單位毫秒，默認1000
ribbon.MaxAutoRetries = 0            # 最大重試次數，默認0
ribbon.MaxAutoRetriesNextServer = 1  # 最大重試服務個數，默認1

ribbon針對具體服務設置，超時時間：(3000+1000)*(0+1)*(0+1)=4000：

zk-provider.ribbon.ReadTimeout = 3000
zk-provider.ribbon.ConnectTimeout = 1000
zk-provider.ribbon.MaxAutoRetries = 0
zk-provider.ribbon.MaxAutoRetriesNextServer = 0