services/consensus: add some logging on start

pkg/consensus/consensus.go

@@ -244,6 +244,7 @@ func (s *service) newPrepareRequest() payload.PrepareRequest {
 
 func (s *service) Start() {
 	if s.started.CAS(false, true) {
+		s.log.Info("starting consensus service")
 		s.dbft.Start()
 		s.Chain.SubscribeForBlocks(s.blockEvents)
 		go s.eventLoop()

pkg/services/notary/notary.go

@@ -117,6 +117,7 @@ func NewNotary(cfg Config, net netmode.Magic, mp *mempool.Pool, onTransaction fu
 
 // Run runs Notary module and should be called in a separate goroutine.
 func (n *Notary) Run() {
+	n.Config.Log.Info("starting notary service")
 	n.Config.Chain.SubscribeForBlocks(n.blocksCh)
 	n.mp.SubscribeForTransactions(n.reqCh)
 	for {

pkg/services/oracle/oracle.go

@@ -162,6 +162,7 @@ func (o *Oracle) Shutdown() {
 
 // Run runs must be executed in a separate goroutine.
 func (o *Oracle) Run() {
+	o.Log.Info("starting oracle service")
 	for i := 0; i < o.MainCfg.MaxConcurrentRequests; i++ {
 		go o.runRequestWorker()
 	}

pkg/services/stateroot/validators.go

@@ -12,6 +12,7 @@ import (
 
 // Run runs service instance in a separate goroutine.
 func (s *service) Run() {
+	s.log.Info("starting state validation service")
 	s.chain.SubscribeForBlocks(s.blockCh)
 	go s.run()
 }