do not reload icecast until the masterelection protocol has reached consensus

node/node.go

@@ -348,6 +348,13 @@ func (rc *RadioNode) updater(stop chan bool) {
 	for {
 		select {
 		case <-rc.upch:
+			// We may have received an update before the
+			// masterelection had time to actually elect a
+			// master. In this case, skip.
+			if !rc.me.Valid() {
+				continue
+			}
+
 			icecastReloads.Incr()
 			rc.Log.Printf("reloading icecast config")
 			if err := rc.icecast.Update(rc.config, rc.me.IsMaster(), rc.getMasterAddr()); err != nil {