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cmd, eth: added light client and light server modes

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This commit is contained in:
zsfelfoldi
2016-01-13 19:35:48 +01:00
committed by Felix Lange
parent 9f8d192991
commit 7db7109a5b
17 changed files with 298 additions and 94 deletions
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2
cmd/geth/chaincmd.go
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@ -180,7 +180,7 @@ func exportChain(ctx *cli.Context) error {
func removeDB(ctx *cli.Context) error {
stack := utils.MakeNode(ctx, clientIdentifier, gitCommit)
dbdir := stack.ResolvePath("chaindata")
dbdir := stack.ResolvePath(utils.ChainDbName(ctx))
if !common.FileExist(dbdir) {
fmt.Println(dbdir, "does not exist")
return nil

30
cmd/geth/main.go
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@ -41,6 +41,7 @@ import (
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p/discover"
"gopkg.in/urfave/cli.v1"
)
@ -118,6 +119,10 @@ participating.
utils.KeyStoreDirFlag,
utils.OlympicFlag,
utils.FastSyncFlag,
utils.LightModeFlag,
utils.NoDefSrvFlag,
utils.LightServFlag,
utils.LightPeersFlag,
utils.LightKDFFlag,
utils.CacheFlag,
utils.TrieCacheGenFlag,
@ -280,6 +285,31 @@ func startNode(ctx *cli.Context, stack *node.Node) {
// Start up the node itself
utils.StartNode(stack)
if ctx.GlobalBool(utils.LightModeFlag.Name) && !ctx.GlobalBool(utils.NoDefSrvFlag.Name) {
// add default light server; test phase only
addPeer := func(url string) {
node, err := discover.ParseNode(url)
if err == nil {
stack.Server().AddPeer(node)
}
}
if ctx.GlobalBool(utils.TestNetFlag.Name) {
// TestNet (John Gerryts @phonikg)
addPeer("enode://d72af45ba9b60851a8077a4eb07700484b585e5f2e55024e0c93b7ec7d114f2e3fa3c8f3a3358f89da00a609f5a062415deb857ada863b8cdad02b0b0bc90da3@50.112.52.169:30301")
} else {
if ctx.GlobalBool(utils.OpposeDAOFork.Name) {
// Classic (Azure)
addPeer("enode://fc3d7b57e5d317946bf421411632ec98d5ffcbf94548cd7bc10088e4fef176670f8ec70280d301a9d0b22fe498203f62b323da15b3acc18b02a1fee2a06b7d3f@40.118.3.223:30305")
} else {
// MainNet (Azure)
addPeer("enode://feaf206a308a669a789be45f4dadcb351246051727f12415ad69e44f8080daf0569c10fe1d9944d245dd1f3e1c89cedda8ce03d7e3d5ed8975a35cad4b4f7ec1@40.118.3.223:30303")
// MainNet (John Gerryts @phonikg)
addPeer("enode://02b80f0d47c7c157c069d0584067a284cdf188b9267666234b872e70d936a803ad20ea27f78ef1fd6425ae4b7108907e1875adbca96b038004114ac4d1e529a3@50.112.52.169:30300")
}
}
}
// Unlock any account specifically requested
accman := stack.AccountManager()
passwords := utils.MakePasswordList(ctx)

4
cmd/geth/usage.go
View File

@ -72,6 +72,10 @@ var AppHelpFlagGroups = []flagGroup{
utils.DevModeFlag,
utils.IdentityFlag,
utils.FastSyncFlag,
utils.LightModeFlag,
utils.NoDefSrvFlag,
utils.LightServFlag,
utils.LightPeersFlag,
utils.LightKDFFlag,
},
},

58
cmd/utils/flags.go
View File

@ -39,6 +39,8 @@ import (
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/les"
"github.com/ethereum/go-ethereum/light"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/metrics"
@ -145,6 +147,24 @@ var (
Name: "fast",
Usage: "Enable fast syncing through state downloads",
}
LightModeFlag = cli.BoolFlag{
Name: "light",
Usage: "Enable light client mode",
}
NoDefSrvFlag = cli.BoolFlag{
Name: "nodefsrv",
Usage: "Don't add default LES server (only for test version)",
}
LightServFlag = cli.IntFlag{
Name: "lightserv",
Usage: "Maximum percentage of time allowed for serving LES requests (0-90)",
Value: 0,
}
LightPeersFlag = cli.IntFlag{
Name: "lightpeers",
Usage: "Maximum number of LES client peers",
Value: 20,
}
LightKDFFlag = cli.BoolFlag{
Name: "lightkdf",
Usage: "Reduce key-derivation RAM & CPU usage at some expense of KDF strength",
@ -680,6 +700,11 @@ func RegisterEthService(ctx *cli.Context, stack *node.Node, extra []byte) {
Etherbase: MakeEtherbase(stack.AccountManager(), ctx),
ChainConfig: MakeChainConfig(ctx, stack),
FastSync: ctx.GlobalBool(FastSyncFlag.Name),
LightMode: ctx.GlobalBool(LightModeFlag.Name),
NoDefSrv: ctx.GlobalBool(NoDefSrvFlag.Name),
LightServ: ctx.GlobalInt(LightServFlag.Name),
LightPeers: ctx.GlobalInt(LightPeersFlag.Name),
MaxPeers: ctx.GlobalInt(MaxPeersFlag.Name),
DatabaseCache: ctx.GlobalInt(CacheFlag.Name),
DatabaseHandles: MakeDatabaseHandles(),
NetworkId: ctx.GlobalInt(NetworkIdFlag.Name),
@ -714,6 +739,7 @@ func RegisterEthService(ctx *cli.Context, stack *node.Node, extra []byte) {
}
ethConf.Genesis = core.TestNetGenesisBlock()
state.StartingNonce = 1048576 // (2**20)
light.StartingNonce = 1048576 // (2**20)
case ctx.GlobalBool(DevModeFlag.Name):
ethConf.Genesis = core.OlympicGenesisBlock()
@ -727,10 +753,23 @@ func RegisterEthService(ctx *cli.Context, stack *node.Node, extra []byte) {
state.MaxTrieCacheGen = uint16(gen)
}
if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
return eth.New(ctx, ethConf)
}); err != nil {
Fatalf("Failed to register the Ethereum service: %v", err)
if ethConf.LightMode {
if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
return les.New(ctx, ethConf)
}); err != nil {
Fatalf("Failed to register the Ethereum light node service: %v", err)
}
} else {
if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
fullNode, err := eth.New(ctx, ethConf)
if fullNode != nil && ethConf.LightServ > 0 {
ls, _ := les.NewLesServer(fullNode, ethConf)
fullNode.AddLesServer(ls)
}
return fullNode, err
}); err != nil {
Fatalf("Failed to register the Ethereum full node service: %v", err)
}
}
}
@ -830,14 +869,23 @@ func MakeChainConfigFromDb(ctx *cli.Context, db ethdb.Database) *core.ChainConfi
return config
}
func ChainDbName(ctx *cli.Context) string {
if ctx.GlobalBool(LightModeFlag.Name) {
return "lightchaindata"
} else {
return "chaindata"
}
}
// MakeChainDatabase open an LevelDB using the flags passed to the client and will hard crash if it fails.
func MakeChainDatabase(ctx *cli.Context, stack *node.Node) ethdb.Database {
var (
cache = ctx.GlobalInt(CacheFlag.Name)
handles = MakeDatabaseHandles()
name = ChainDbName(ctx)
)
chainDb, err := stack.OpenDatabase("chaindata", cache, handles)
chainDb, err := stack.OpenDatabase(name, cache, handles)
if err != nil {
Fatalf("Could not open database: %v", err)
}