The Hystrix timeout of xxx ms for the command xxxx is set lower than the combination of the Ribbon

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解决:The Hystrix timeout of xxx ms for the command xxxx is set lower than the combination of the Ribbon

项目具体报错如下:

2019-09-19 17:46:48.283 [http-nio-7777-exec-3] WARN  o.s.c.n.z.f.route.support.AbstractRibbonCommand - The Hystrix timeout of 5000ms for the command SERVICE is set lower than the combination of the Ribbon read and connect timeout, 400000ms.

分析:

hystrix超时设置:

# 默认超时时间
hystrix.command.default.execution.isolation.thread.timeoutInMilliseconds = 6000  
# 具体应用的超时时间
hystrix.command.xxx.execution.isolation.thread.timeoutInMilliseconds = 6000     
Ribbon 
# 总时间ribbonTimeout = (ribbonReadTimeout + ribbonConnectTimeout) * (maxAutoRetries + 1) * (maxAutoRetriesNextServer + 1);
# 笔者这里的具体值为:(5000+5000)*(1+1)*(1+1)=40000;

而Hystrix 时间为:5000,具体办法也好办,在配置文件中修改超时为:

hystrix:
  command:
    default:
      execution:
        isolation:
          thread:
            timeoutInMilliseconds: 40000

或者修改ribbon配置:

AUSERVICE:  #这是ribion要请求的serviceID
  ribbon:
    ReadTimeout: 2000
    ConnectTimeout: 2000
    MaxAutoRetries: 0
    MaxAutoRetriesNextServer: 0

即:(2000+2000)(0+1)(0+1)=4000<5000也可。

ribbon全局设置,超时时间:(2000+1000)(0+1)(1+1)=6000:

ribbon.ReadTimeout = 2000            # 访问超时,单位毫秒,默认1000
ribbon.ConnectTimeout = 1000         # 连接超时,单位毫秒,默认1000
ribbon.MaxAutoRetries = 0            # 最大重试次数,默认0
ribbon.MaxAutoRetriesNextServer = 1  # 最大重试服务个数,默认1