circuitbreaker

Documentation

Index

• type InstanceCircuitBreaker
• type Proxy
  • func (p *Proxy) CircuitBreak(instances []model.Instance) (*Result, error)
  • func (p *Proxy) SetRealPlugin(plug plugin.Plugin, engine model.Engine)
  • func (p *Proxy) Stat(gauge model.InstanceGauge) (bool, error)
• type Result
  • func NewCircuitBreakerResult(now time.Time) *Result
  • func (r *Result) IsEmpty() bool
  • func (r *Result) Merge(result *Result)

Types

type InstanceCircuitBreaker

type InstanceCircuitBreaker interface {
	plugin.Plugin
	//进行调用统计，返回当前实例是否需要进行立即熔断
	Stat(model.InstanceGauge) (bool, error)
	//进行熔断计算，返回需要进行状态转换的实例ID
	//入参包括全量服务实例，以及当前周期的健康探测结果
	CircuitBreak(instances []model.Instance) (*Result, error)
}

InstanceCircuitBreaker 【扩展点接口】节点熔断

type Proxy

type Proxy struct {
	InstanceCircuitBreaker
	// contains filtered or unexported fields
}

proxy of InstanceCircuitBreaker

func (*Proxy) CircuitBreak

func (p *Proxy) CircuitBreak(instances []model.Instance) (*Result, error)

proxy InstanceCircuitBreaker CircuitBreak

func (*Proxy) SetRealPlugin

func (p *Proxy) SetRealPlugin(plug plugin.Plugin, engine model.Engine)

设置

func (*Proxy) Stat

func (p *Proxy) Stat(gauge model.InstanceGauge) (bool, error)

proxy InstanceCircuitBreaker stat

type Result

type Result struct {
	Now time.Time
	//需要开启熔断器的实例ID
	InstancesToOpen model.HashSet
	//需要转换成半开状态的实例ID
	InstancesToHalfOpen model.HashSet
	//需要关闭熔断器的实例ID
	InstancesToClose model.HashSet
	//该熔断器在实例进入半开状态后最多允许的请求数
	RequestCountAfterHalfOpen int
}

熔断结算结果

func NewCircuitBreakerResult

func NewCircuitBreakerResult(now time.Time) *Result

NewCircuitBreakerResult 创建熔断结果对象

func (*Result) IsEmpty

func (r *Result) IsEmpty() bool

IsEmpty result has status changing instances

func (*Result) Merge

func (r *Result) Merge(result *Result)

Merge merge results