node: fix genesis on start up (#6563)

node/node.go

@@ -72,7 +72,6 @@ type nodeImpl struct {
 	stateSync         bool                    // whether the node should state sync on startup
 	stateSyncReactor  *statesync.Reactor      // for hosting and restoring state sync snapshots
 	stateSyncProvider statesync.StateProvider // provides state data for bootstrapping a node
-	stateSyncGenesis  sm.State                // provides the genesis state for state sync
 	consensusState    *cs.State               // latest consensus state
 	consensusReactor  *cs.Reactor             // for participating in the consensus
 	pexReactor        *pex.Reactor            // for exchanging peer addresses
@@ -440,7 +439,6 @@ func makeNode(config *cfg.Config,
 		consensusReactor: csReactor,
 		stateSyncReactor: stateSyncReactor,
 		stateSync:        stateSync,
-		stateSyncGenesis: state, // Shouldn't be necessary, but need a way to pass the genesis state
 		pexReactor:       pexReactor,
 		pexReactorV2:     pexReactorV2,
 		evidenceReactor:  evReactor,
@@ -662,8 +660,15 @@ func (n *nodeImpl) OnStart() error {
 		if !ok {
 			return fmt.Errorf("this blockchain reactor does not support switching from state sync")
 		}
-		err := startStateSync(n.stateSyncReactor, bcR, n.consensusReactor, n.stateSyncProvider,
-			n.config.StateSync, n.config.FastSyncMode, n.stateStore, n.blockStore, n.stateSyncGenesis)
+
+		// we need to get the genesis state to get parameters such as
+		state, err := sm.MakeGenesisState(n.genesisDoc)
+		if err != nil {
+			return fmt.Errorf("unable to derive state: %w", err)
+		}
+
+		err = startStateSync(n.stateSyncReactor, bcR, n.consensusReactor, n.stateSyncProvider,
+			n.config.StateSync, n.config.FastSyncMode, n.stateStore, n.blockStore, state)
 		if err != nil {
 			return fmt.Errorf("failed to start state sync: %w", err)
 		}
@@ -1028,7 +1033,7 @@ func (n *nodeImpl) NodeInfo() p2p.NodeInfo {
 func startStateSync(ssR *statesync.Reactor, bcR fastSyncReactor, conR *cs.Reactor,
 	stateProvider statesync.StateProvider, config *cfg.StateSyncConfig, fastSync bool,
 	stateStore sm.Store, blockStore *store.BlockStore, state sm.State) error {
-	ssR.Logger.Info("Starting state sync")
+	ssR.Logger.Info("starting state sync...")
 
 	if stateProvider == nil {
 		var err error
@@ -1050,13 +1055,13 @@ func startStateSync(ssR *statesync.Reactor, bcR fastSyncReactor, conR *cs.Reacto
 	go func() {
 		err := ssR.Sync(stateProvider, config.DiscoveryTime)
 		if err != nil {
-			ssR.Logger.Error("State sync failed", "err", err)
+			ssR.Logger.Error("state sync failed", "err", err)
 			return
 		}
 
 		state, err := stateStore.Load()
 		if err != nil {
-			ssR.Logger.Error("failed to load state", "err", err)
+			ssR.Logger.Error("failed to load state after statesync", "err", err)
 		}
 
 		if fastSync {
@@ -1065,7 +1070,7 @@ func startStateSync(ssR *statesync.Reactor, bcR fastSyncReactor, conR *cs.Reacto
 			conR.Metrics.FastSyncing.Set(1)
 			err = bcR.SwitchToFastSync(state)
 			if err != nil {
-				ssR.Logger.Error("Failed to switch to fast sync", "err", err)
+				ssR.Logger.Error("failed to switch to fast sync", "err", err)
 				return
 			}
 		} else {
@@ -1122,16 +1127,11 @@ func loadStateFromDBOrGenesisDocProvider(
 	}
 
 	if state.IsEmpty() {
-		// 2. If it's not there, load it from the genesis doc
+		// 2. If it's not there, derive it from the genesis doc
 		state, err = sm.MakeGenesisState(genDoc)
 		if err != nil {
 			return sm.State{}, err
 		}
-
-		// 3. Save the new state to disk
-		if err := stateStore.Save(state); err != nil {
-			return sm.State{}, err
-		}
 	}
 
 	return state, nil

node/node_test.go

@@ -25,6 +25,7 @@ import (
 	"github.com/tendermint/tendermint/internal/mempool"
 	mempoolv0 "github.com/tendermint/tendermint/internal/mempool/v0"
 	"github.com/tendermint/tendermint/internal/p2p"
+	"github.com/tendermint/tendermint/internal/test/factory"
 	"github.com/tendermint/tendermint/libs/log"
 	tmrand "github.com/tendermint/tendermint/libs/rand"
 	"github.com/tendermint/tendermint/privval"
@@ -619,3 +620,22 @@ func state(nVals int, height int64) (sm.State, dbm.DB, []types.PrivValidator) {
 	}
 	return s, stateDB, privVals
 }
+
+func TestLoadStateFromGenesis(t *testing.T) {
+	stateDB := dbm.NewMemDB()
+	stateStore := sm.NewStore(stateDB)
+	config := cfg.ResetTestRoot("load_state_from_genesis")
+
+	loadedState, err := stateStore.Load()
+	require.NoError(t, err)
+	require.True(t, loadedState.IsEmpty())
+
+	genDoc, _ := factory.RandGenesisDoc(config, 0, false, 10)
+
+	state, err := loadStateFromDBOrGenesisDocProvider(
+		stateStore,
+		genDoc,
+	)
+	require.NoError(t, err)
+	require.NotNil(t, state)
+}

node/setup.go

@@ -295,7 +295,7 @@ func createEvidenceReactor(
 
 	evidencePool, err := evidence.NewPool(logger, evidenceDB, sm.NewStore(stateDB), blockStore)
 	if err != nil {
-		return nil, nil, nil, err
+		return nil, nil, nil, fmt.Errorf("creating evidence pool: %w", err)
 	}
 
 	var (