cmd, parlia: option to disable verify validators

cmd/utils/flags.go

@@ -39,6 +39,7 @@ import (
 	"github.com/ethereum/go-ethereum/accounts/keystore"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/fdlimit"
+	"github.com/ethereum/go-ethereum/consensus/parlia"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/txpool/legacypool"
@@ -2471,6 +2472,10 @@ func MakeChain(ctx *cli.Context, stack *node.Node, readonly bool) (*core.BlockCh
 	if err != nil {
 		Fatalf("%v", err)
 	}
+	if parlia, ok := engine.(*parlia.Parlia); ok {
+		parlia.SetNoVerifyValidators(true)
+	}
+
 	if gcmode := ctx.String(GCModeFlag.Name); gcmode != "full" && gcmode != "archive" {
 		Fatalf("--%s must be either 'full' or 'archive'", GCModeFlag.Name)
 	}

consensus/parlia/parlia.go

@@ -234,6 +234,8 @@ type Parlia struct {
 	slashABI                   abi.ABI
 	stakeHubABI                abi.ABI
 
+	noVerifyValidators bool
+
 	// The fields below are for testing only
 	fakeDiff bool // Skip difficulty verifications
 }
@@ -1140,8 +1142,10 @@ func (p *Parlia) Finalize(chain consensus.ChainHeaderReader, header *types.Heade
 	}
 	// If the block is an epoch end block, verify the validator list
 	// The verification can only be done when the state is ready, it can't be done in VerifyHeader.
-	if err := p.verifyValidators(header); err != nil {
-		return err
+	if !p.noVerifyValidators {
+		if err := p.verifyValidators(header); err != nil {
+			return err
+		}
 	}
 
 	cx := chainContext{Chain: chain, parlia: p}
@@ -1882,6 +1886,10 @@ func (p *Parlia) GetFinalizedHeader(chain consensus.ChainHeaderReader, header *t
 	return chain.GetHeader(snap.Attestation.SourceHash, snap.Attestation.SourceNumber)
 }
 
+func (p *Parlia) SetNoVerifyValidators(cond bool) {
+	p.noVerifyValidators = cond
+}
+
 // ===========================     utility function        ==========================
 func (p *Parlia) backOffTime(snap *Snapshot, header *types.Header, val common.Address) uint64 {
 	if snap.inturn(val) {