do not store it (#13637)

beacon-chain/blockchain/service.go

@@ -199,6 +199,7 @@ func NewService(ctx context.Context, opts ...Option) (*Service, error) {
 // Start a blockchain service's main event loop.
 func (s *Service) Start() {
 	saved := s.cfg.FinalizedStateAtStartUp
+	defer s.removeStartupState()
 
 	if saved != nil && !saved.IsNil() {
 		if err := s.StartFromSavedState(saved); err != nil {
@@ -550,6 +551,10 @@ func (s *Service) hasBlock(ctx context.Context, root [32]byte) bool {
 	return s.cfg.BeaconDB.HasBlock(ctx, root)
 }
 
+func (s *Service) removeStartupState() {
+	s.cfg.FinalizedStateAtStartUp = nil
+}
+
 func spawnCountdownIfPreGenesis(ctx context.Context, genesisTime time.Time, db db.HeadAccessDatabase) {
 	currentTime := prysmTime.Now()
 	if currentTime.After(genesisTime) {

beacon-chain/execution/service.go

@@ -583,6 +583,9 @@ func (s *Service) run(done <-chan struct{}) {
 	s.runError = nil
 
 	s.initPOWService()
+	// Do not keep storing the finalized state as it is
+	// no longer of use.
+	s.removeStartupState()
 
 	chainstartTicker := time.NewTicker(logPeriod)
 	defer chainstartTicker.Stop()
@@ -910,3 +913,7 @@ func (s *Service) migrateOldDepositTree(eth1DataInDB *ethpb.ETH1ChainData) error
 	s.depositTrie = newDepositTrie
 	return nil
 }
+
+func (s *Service) removeStartupState() {
+	s.cfg.finalizedStateAtStartup = nil
+}

beacon-chain/node/node.go

@@ -326,6 +326,10 @@ func New(cliCtx *cli.Context, cancel context.CancelFunc, opts ...Option) (*Beaco
 	}
 	beacon.collector = c
 
+	// Do not store the finalized state as it has been provided to the respective services during
+	// their initialization.
+	beacon.finalizedStateAtStartUp = nil
+
 	return beacon, nil
 }
 func initSyncWaiter(ctx context.Context, complete chan struct{}) func() error {