const RoundTripperNameRaftMessage … const RoundTripperNameSnapshot … var proberInterval … var statusMonitoringInterval … var statusErrorInterval … func addPeerToProber(lg *zap.Logger, p probing.Prober, id string, us []string, roundTripperName string, rttSecProm *prometheus.HistogramVec) { … } func monitorProbingStatus(lg *zap.Logger, s probing.Status, id string, roundTripperName string, rttSecProm *prometheus.HistogramVec) { … }