Increase invites limit for god node (#781)

Author: sidenaio

blockchain/blockchain.go

@@ -322,7 +322,7 @@ func (chain *Blockchain) generateGenesis(network types.Network) (*types.Block, e
 		if chain.config.GenesisConf.GodAddressInvites > 0 {
 			chain.appState.State.SetGodAddressInvites(chain.config.GenesisConf.GodAddressInvites)
 		} else {
-			chain.appState.State.SetGodAddressInvites(common.GodAddressInvitesCount(0))
+			chain.appState.State.SetGodAddressInvites(common.GodAddressInvitesCount(0, chain.config.Consensus.IncreaseGodInvitesLimit))
 		}
 
 		log.Info("Next validation time", "time", chain.appState.State.NextValidationTime().String(), "unix", nextValidationTimestamp)
@@ -600,7 +600,7 @@ func (chain *Blockchain) applyNewEpoch(appState *appstate.AppState, block *types
 	}
 	appState.State.SetEpochBlock(block.Height())
 	appState.State.ClearEmptyBlocksByShard()
-	appState.State.SetGodAddressInvites(common.GodAddressInvitesCount(networkSize))
+	appState.State.SetGodAddressInvites(common.GodAddressInvitesCount(networkSize, chain.config.Consensus.IncreaseGodInvitesLimit))
 }
 
 func calculateNewIdentityStatusFlags(validationResults map[common.ShardId]*types.ValidationResults) map[common.Address]state.ValidationStatusFlag {

blockchain/blockchain_test.go

@@ -730,7 +730,7 @@ func Test_Blockchain_GodAddressInvitesLimit(t *testing.T) {
 	addr := crypto.PubkeyToAddress(key.PublicKey)
 	chain, state := NewCustomTestBlockchain(5, 0, key)
 
-	count := int(common.GodAddressInvitesCount(0))
+	count := int(common.GodAddressInvitesCount(0, false))
 	for i := 0; i < count; i++ {
 		keyReceiver, _ := crypto.GenerateKey()
 		receiver := crypto.PubkeyToAddress(keyReceiver.PublicKey)

common/network.go

@@ -81,8 +81,12 @@ func NormalizedEpochDuration(validationTime time.Time, networkSize int) time.Dur
 	return day * time.Duration(math2.MinInt(28, int(math.Round(math.Pow(float64(networkSize), 0.33)/21)*21)))
 }
 
-func GodAddressInvitesCount(networkSize int) uint16 {
-	return uint16(math2.MinInt(500, math2.MaxInt(50, networkSize/3)))
+func GodAddressInvitesCount(networkSize int, increaseLimit bool) uint16 {
+	limit := 500
+	if increaseLimit {
+		limit = math2.MaxInt(500, int(float32(networkSize)*0.1))
+	}
+	return uint16(math2.MinInt(limit, math2.MaxInt(50, networkSize/3)))
 }
 
 func EncodeScore(shortPoints float32, shortFlipsCount uint32) byte {

config/consensus.go

@@ -57,6 +57,7 @@ type ConsensusConf struct {
 	BurnInviteeStake                  bool
 	ReductionOneDelay                 time.Duration
 	EnableValidationSharding          bool
+	IncreaseGodInvitesLimit           bool
 }
 
 type ConsensusVerson uint16
@@ -162,6 +163,7 @@ func ApplyConsensusVersion(ver ConsensusVerson, cfg *ConsensusConf) {
 		cfg.EndActivationDate = time.Date(2021, 05, 18, 0, 0, 0, 0, time.UTC).Unix()
 	case ConsensusV6:
 		cfg.EnableValidationSharding = true
+		cfg.IncreaseGodInvitesLimit = true
 		cfg.Version = ConsensusV6
 		cfg.MigrationTimeout = 0
 		cfg.GenerateGenesisAfterUpgrade = true