cherry pick from #664

cmd/XDC/main.go

@@ -137,6 +137,7 @@ var (
 
 	rpcFlags = []cli.Flag{
 		utils.RPCEnabledFlag,
+		utils.RPCGlobalGasCapFlag,
 		utils.RPCListenAddrFlag,
 		utils.RPCPortFlag,
 		utils.RPCHttpWriteTimeoutFlag,

cmd/XDC/usage.go

@@ -143,6 +143,7 @@ var AppHelpFlagGroups = []flagGroup{
 		Name: "API AND CONSOLE",
 		Flags: []cli.Flag{
 			utils.RPCEnabledFlag,
+			utils.RPCGlobalGasCapFlag,
 			utils.RPCListenAddrFlag,
 			utils.RPCPortFlag,
 			utils.RPCHttpWriteTimeoutFlag,

cmd/utils/flags.go

@@ -359,7 +359,7 @@ 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: eth.DefaultConfig.RPCGasCap,
 	}
@@ -1171,6 +1171,9 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
 	if ctx.GlobalIsSet(DocRootFlag.Name) {
 		cfg.DocRoot = ctx.GlobalString(DocRootFlag.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/config.go

@@ -51,7 +51,7 @@ var DefaultConfig = Config{
 	GasPrice:      big.NewInt(0.25 * params.Shannon),
 
 	TxPool:    core.DefaultTxPoolConfig,
-	RPCGasCap: 25000000,
+	RPCGasCap: 50000000,
 	GPO: gasprice.Config{
 		Blocks:     20,
 		Percentile: 60,