Istio DestinationRule 熔断与异常剔除(OutlierDetection)配置实战

示例 DestinationRule：

apiVersion: networking.istio.io/v1beta1
kind: DestinationRule
metadata:
  name: api-dr
spec:
  host: api.default.svc.cluster.local
  trafficPolicy:
    connectionPool:
      tcp:
        maxConnections: 100
      http:
        http1MaxPendingRequests: 1000
        maxRequestsPerConnection: 100
    outlierDetection:
      consecutive5xx: 5
      interval: 5s
      baseEjectionTime: 30s
      maxEjectionPercent: 50