lower oscillatord connection error urgency

Summary: It's ok if we miss a data point. Things happen, especially when oscillatord is being restarted

Reviewed By: pmazzini

Differential Revision: D53134276

fbshipit-source-id: 370dabf11cb10b55fefff9a6fb8a4b099088e4d9

ptp/c4u/c4u.go

@@ -101,7 +101,7 @@ func Run(config *Config, rb *clock.RingBuffer, st stats.Stats) error {
 	dataError := false
 	dp, err := clock.Run()
 	if err != nil {
-		log.Errorf("Failed to collect clock data: %v", err)
+		log.Warningf("Failed to collect clock data: %v", err)
 		dataError = true
 	}