Fallback Aspect: Node fault degradation aspect, is a built-in aspect of the system. If the node fails to execute (relationType="Failure") more than a certain threshold within a certain time, then it will trigger component fault degradation, skip the component, and connect the next node through Failure RelationType, error content: skip fallback error

Node fault degradation aspect, for nodes such as restApiCall, mqttClient that interact with external services, when the external service is not available, using node degradation can protect system resources well.

TIP

This aspect needs to be manually imported.

Configuration

Field	Type	Description	Default
ErrorCountLimit	int	After the number of errors reaches a certain limit within LimitDuration, skip degradation is executed	0
LimitDuration	time.Duration	The duration of the degradation limit	None
PointCutFunc	func(ctx types.RuleContext, msg types.RuleMsg, relationType string) bool	Used to determine whether to execute degradation logic, default all	true

Usage example

Reference example (opens new window)

//If 3 errors occur within 60s, skip the current node and continue to execute the next node, and resume after 60s
types.WithAspects(
  &aspect.SkipFallbackAspect{
      ErrorCountLimit: 3,
      LimitDuration: time.Second * 60}
)