Revert "fix(server): consensus failure while restart node with wrong …

…`chainId` in genesis (cosmos#18920)"

This reverts commit 67aee75.

CHANGELOG.md

@@ -56,7 +56,6 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Bug Fixes
 
 * [#19106](https://github.com/cosmos/cosmos-sdk/pull/19106) Allow empty public keys when setting signatures. Public keys aren't needed for every transaction. 
-* (server) [#18920](https://github.com/cosmos/cosmos-sdk/pull/18920) Fixes consensus failure while restart node with wrong `chainId` in genesis.
 
 ## [v0.47.7](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.7) - 2023-12-20
 

server/util.go

@@ -25,8 +25,6 @@ import (
 	tmcmd "github.com/cometbft/cometbft/cmd/cometbft/commands"
 	tmcfg "github.com/cometbft/cometbft/config"
 	tmlog "github.com/cometbft/cometbft/libs/log"
-	"github.com/cometbft/cometbft/node"
-	tmstore "github.com/cometbft/cometbft/store"
 	tmtypes "github.com/cometbft/cometbft/types"
 
 	"github.com/cosmos/cosmos-sdk/baseapp"
@@ -461,13 +459,13 @@ func DefaultBaseappOptions(appOpts types.AppOptions) []func(*baseapp.BaseApp) {
 	homeDir := cast.ToString(appOpts.Get(flags.FlagHome))
 	chainID := cast.ToString(appOpts.Get(flags.FlagChainID))
 	if chainID == "" {
-		// read the chainID from home directory (either from comet or genesis).
-		chainId, err := readChainIdFromHome(homeDir)
+		// fallback to genesis chain-id
+		appGenesis, err := tmtypes.GenesisDocFromFile(filepath.Join(homeDir, "config", "genesis.json"))
 		if err != nil {
 			panic(err)
 		}
 
-		chainID = chainId
+		chainID = appGenesis.ChainID
 	}
 
 	snapshotStore, err := GetSnapshotStore(appOpts)
@@ -502,38 +500,6 @@ func DefaultBaseappOptions(appOpts types.AppOptions) []func(*baseapp.BaseApp) {
 	}
 }
 
-// readChainIdFromHome reads chain id from home directory.
-func readChainIdFromHome(homeDir string) (string, error) {
-	cfg := tmcfg.DefaultConfig()
-	cfg.SetRoot(homeDir)
-
-	// if the node's current height is not zero then try to read the chainID from comet db.
-	db, err := node.DefaultDBProvider(&node.DBContext{ID: "blockstore", Config: cfg})
-	if err != nil {
-		return "", err
-	}
-
-	blockStore := tmstore.NewBlockStore(db)
-	defer func() {
-		if err := blockStore.Close(); err != nil {
-			panic(err)
-		}
-	}()
-
-	// if the blockStore.LoadBaseMeta() is nil (no blocks are created/synced so far), fallback to genesis chain-id.
-	baseMeta := blockStore.LoadBaseMeta()
-	if baseMeta != nil {
-		return baseMeta.Header.ChainID, nil
-	}
-
-	appGenesis, err := tmtypes.GenesisDocFromFile(filepath.Join(homeDir, "config", "genesis.json"))
-	if err != nil {
-		return "", err
-	}
-
-	return appGenesis.ChainID, nil
-}
-
 func GetSnapshotStore(appOpts types.AppOptions) (*snapshots.Store, error) {
 	homeDir := cast.ToString(appOpts.Get(flags.FlagHome))
 	snapshotDir := filepath.Join(homeDir, "data", "snapshots")