add flag rpc-gascap and set RPCGasCap to 50M (#664)

* add gas cap flag

* default gas cap to 50m

* rpc-gascap

cmd/XDC/main.go

@@ -144,6 +144,7 @@ var (
 
 	rpcFlags = []cli.Flag{
 		utils.RPCEnabledFlag,
+		utils.RPCGlobalGasCapFlag,
 		utils.RPCListenAddrFlag,
 		utils.RPCPortFlag,
 		utils.RPCHttpWriteTimeoutFlag,

cmd/XDC/usage.go

@@ -144,6 +144,7 @@ var AppHelpFlagGroups = []flagGroup{
 		Name: "API AND CONSOLE",
 		Flags: []cli.Flag{
 			utils.RPCEnabledFlag,
+			utils.RPCGlobalGasCapFlag,
 			utils.RPCListenAddrFlag,
 			utils.RPCPortFlag,
 			utils.RPCHttpWriteTimeoutFlag,

cmd/utils/flags.go

@@ -374,7 +374,7 @@ var (
 		Usage: "Record information useful for VM and contract debugging",
 	}
 	RPCGlobalGasCapFlag = cli.Uint64Flag{
-		Name:  "rpc.gascap",
+		Name:  "rpc-gascap",
 		Usage: "Sets a cap on gas that can be used in eth_call/estimateGas (0=infinite)",
 		Value: ethconfig.Defaults.RPCGasCap,
 	}
@@ -1245,6 +1245,9 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
 	if ctx.GlobalIsSet(RPCGlobalTxFeeCap.Name) {
 		cfg.RPCTxFeeCap = ctx.GlobalFloat64(RPCGlobalTxFeeCap.Name)
 	}
+	if ctx.GlobalIsSet(RPCGlobalGasCapFlag.Name) {
+		cfg.RPCGasCap = ctx.GlobalUint64(RPCGlobalGasCapFlag.Name)
+	}
 	if ctx.GlobalIsSet(ExtraDataFlag.Name) {
 		cfg.ExtraData = []byte(ctx.GlobalString(ExtraDataFlag.Name))
 	}

eth/ethconfig/config.go

@@ -69,7 +69,7 @@ var Defaults = Config{
 	GasPrice:           big.NewInt(0.25 * params.Shannon),
 
 	TxPool:      core.DefaultTxPoolConfig,
-	RPCGasCap:   25000000,
+	RPCGasCap:   50000000,
 	GPO:         FullNodeGPO,
 	RPCTxFeeCap: 1, // 1 ether
 }

eth/peer.go

@@ -77,7 +77,7 @@ type peer struct {
 
 	knownVote     mapset.Set // Set of BFT Vote known to be known by this peer
 	knownTimeout  mapset.Set // Set of BFT timeout known to be known by this peer
-	knownSyncInfo mapset.Set // Set of BFT Sync Info known to be known by this peer`
+	knownSyncInfo mapset.Set // Set of BFT Sync Info known to be known by this peer
 }
 
 func newPeer(version int, p *p2p.Peer, rw p2p.MsgReadWriter) *peer {