go hystrix time out

 一般使用 hystrix.Do来跟踪请求，需要传入请求名，所以正则匹配一下想要自定义配置的请求名。然后这样:

这是go-hystrix下doc.go里面的内容，vender源码到项目的好处之一是可以轻松查看框架资料！

Synchronous API

Since calling a command and immediately waiting for it to finish is a common pattern, a synchronous API is available with the Do function which returns a single error.

   err := hystrix.Do("my_command", func() error {
      // talk to other services
      return nil
   }, nil)

Configure settings

During application boot, you can call ConfigureCommand to tweak the settings for each command.

   hystrix.ConfigureCommand("my_command", hystrix.CommandConfig{
      Timeout:               1000,
      MaxConcurrentRequests: 100,
      ErrorPercentThreshold: 25,
   })

You can also use Configure which accepts a map[string]CommandConfig.