INNER CODE UNIT · Go

duration

kubernetes/dns · third_party/forked/skydns/main.go:182

			duration := 1 * time.Second

			if config.Etcd3 {
				var watcher etcdv3.WatchChan
				watcher = clientv3.Watch(ctx, msg.Path(config.Domain)+"/dns/stub/", etcdv3.WithPrefix())

				for wresp := range watcher {
					if wresp.Err() != nil {
						log.Printf("skydns: stubzone update failed, sleeping %s + ~3s", duration)
						time.Sleep(duration + (time.Duration(rand.Float32() * 3e9)))
						duration *= 2
						if duration > 32*time.Second {
							duration = 32 * time.Second
						}
					} else {
						s.UpdateStubZones()
						log.Printf("skydns: stubzone update")
						duration = 1 * time.Second //reset

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