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Added blockchain DB versioning support, closes #650

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This commit is contained in:
Bas van Kervel 2015-04-13 10:13:52 +02:00
parent 4de1e1609a
commit 49a513bdeb
6 changed files with 188 additions and 29 deletions
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95
cmd/geth/main.go
View File

@ -34,11 +34,13 @@ import (
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/logger"
"github.com/peterh/liner"
"path"
)
const (
@ -205,12 +207,18 @@ JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Conso
Name: "export",
Usage: `export blockchain into file`,
},
{
Action: upgradeDb,
Name: "upgradedb",
Usage: "upgrade chainblock database",
},
}
app.Flags = []cli.Flag{
utils.UnlockedAccountFlag,
utils.PasswordFileFlag,
utils.BootnodesFlag,
utils.DataDirFlag,
utils.BlockchainVersionFlag,
utils.JSpathFlag,
utils.ListenPortFlag,
utils.MaxPeersFlag,
@ -429,13 +437,29 @@ func importchain(ctx *cli.Context) {
if len(ctx.Args()) != 1 {
utils.Fatalf("This command requires an argument.")
}
chainmgr, _, _ := utils.GetChain(ctx)
cfg := utils.MakeEthConfig(ClientIdentifier, Version, ctx)
cfg.SkipBcVersionCheck = true
ethereum, err := eth.New(cfg)
if err != nil {
utils.Fatalf("%v\n", err)
}
chainmgr := ethereum.ChainManager()
start := time.Now()
err := utils.ImportChain(chainmgr, ctx.Args().First())
err = utils.ImportChain(chainmgr, ctx.Args().First())
if err != nil {
utils.Fatalf("Import error: %v\n", err)
}
// force database flush
ethereum.BlockDb().Close()
ethereum.StateDb().Close()
ethereum.ExtraDb().Close()
fmt.Printf("Import done in %v", time.Since(start))
return
}
@ -443,9 +467,18 @@ func exportchain(ctx *cli.Context) {
if len(ctx.Args()) != 1 {
utils.Fatalf("This command requires an argument.")
}
chainmgr, _, _ := utils.GetChain(ctx)
cfg := utils.MakeEthConfig(ClientIdentifier, Version, ctx)
cfg.SkipBcVersionCheck = true
ethereum, err := eth.New(cfg)
if err != nil {
utils.Fatalf("%v\n", err)
}
chainmgr := ethereum.ChainManager()
start := time.Now()
err := utils.ExportChain(chainmgr, ctx.Args().First())
err = utils.ExportChain(chainmgr, ctx.Args().First())
if err != nil {
utils.Fatalf("Export error: %v\n", err)
}
@ -453,6 +486,60 @@ func exportchain(ctx *cli.Context) {
return
}
func upgradeDb(ctx *cli.Context) {
fmt.Println("Upgrade blockchain DB")
cfg := utils.MakeEthConfig(ClientIdentifier, Version, ctx)
cfg.SkipBcVersionCheck = true
ethereum, err := eth.New(cfg)
if err != nil {
utils.Fatalf("%v\n", err)
}
v, _ := ethereum.BlockDb().Get([]byte("BlockchainVersion"))
bcVersion := int(common.NewValue(v).Uint())
if bcVersion == 0 {
bcVersion = core.BlockChainVersion
}
filename := fmt.Sprintf("blockchain_%d_%s.chain", bcVersion, time.Now().Format("2006-01-02_15:04:05"))
exportFile := path.Join(ctx.GlobalString(utils.DataDirFlag.Name), filename)
err = utils.ExportChain(ethereum.ChainManager(), exportFile)
if err != nil {
utils.Fatalf("Unable to export chain for reimport %s\n", err)
}
ethereum.BlockDb().Close()
ethereum.StateDb().Close()
ethereum.ExtraDb().Close()
os.RemoveAll(path.Join(ctx.GlobalString(utils.DataDirFlag.Name), "blockchain"))
ethereum, err = eth.New(cfg)
if err != nil {
utils.Fatalf("%v\n", err)
}
ethereum.BlockDb().Put([]byte("BlockchainVersion"), common.NewValue(core.BlockChainVersion).Bytes())
err = utils.ImportChain(ethereum.ChainManager(), exportFile)
if err != nil {
utils.Fatalf("Import error %v (a backup is made in %s, use the import command to import it)\n", err, exportFile)
}
// force database flush
ethereum.BlockDb().Close()
ethereum.StateDb().Close()
ethereum.ExtraDb().Close()
os.Remove(exportFile)
fmt.Println("Import finished")
}
func dump(ctx *cli.Context) {
chainmgr, _, stateDb := utils.GetChain(ctx)
for _, arg := range ctx.Args() {

25
cmd/utils/cmd.go
View File

@ -155,7 +155,11 @@ func ImportChain(chainmgr *core.ChainManager, fn string) error {
chainmgr.Reset()
stream := rlp.NewStream(fh)
var i int
var i, n int
batchSize := 2500
blocks := make(types.Blocks, batchSize)
for ; ; i++ {
var b types.Block
if err := stream.Decode(&b); err == io.EOF {
@ -163,10 +167,25 @@ func ImportChain(chainmgr *core.ChainManager, fn string) error {
} else if err != nil {
return fmt.Errorf("at block %d: %v", i, err)
}
if err := chainmgr.InsertChain(types.Blocks{&b}); err != nil {
return fmt.Errorf("invalid block %d: %v", i, err)
blocks[n] = &b
n++
if n == batchSize {
if err := chainmgr.InsertChain(blocks); err != nil {
return fmt.Errorf("invalid block %v", err)
}
n = 0
blocks = make(types.Blocks, batchSize)
}
}
if n > 0 {
if err := chainmgr.InsertChain(blocks[:n]); err != nil {
return fmt.Errorf("invalid block %v", err)
}
}
fmt.Printf("imported %d blocks\n", i)
return nil
}

24
cmd/utils/flags.go
View File

@ -7,6 +7,7 @@ import (
"runtime"
"github.com/codegangsta/cli"
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
@ -83,6 +84,11 @@ var (
Usage: "Network Id",
Value: eth.NetworkId,
}
BlockchainVersionFlag = cli.IntFlag{
Name: "blockchainversion",
Usage: "Blockchain version",
Value: core.BlockChainVersion,
}
// miner settings
MinerThreadsFlag = cli.IntFlag{
@ -240,6 +246,8 @@ func MakeEthConfig(clientID, version string, ctx *cli.Context) *eth.Config {
Name: common.MakeName(clientID, version),
DataDir: ctx.GlobalString(DataDirFlag.Name),
ProtocolVersion: ctx.GlobalInt(ProtocolVersionFlag.Name),
BlockChainVersion: ctx.GlobalInt(BlockchainVersionFlag.Name),
SkipBcVersionCheck: false,
NetworkId: ctx.GlobalInt(NetworkIdFlag.Name),
LogFile: ctx.GlobalString(LogFileFlag.Name),
LogLevel: ctx.GlobalInt(LogLevelFlag.Name),
@ -260,6 +268,7 @@ func MakeEthConfig(clientID, version string, ctx *cli.Context) *eth.Config {
func GetChain(ctx *cli.Context) (*core.ChainManager, common.Database, common.Database) {
dataDir := ctx.GlobalString(DataDirFlag.Name)
blockDb, err := ethdb.NewLDBDatabase(path.Join(dataDir, "blockchain"))
if err != nil {
Fatalf("Could not open database: %v", err)
@ -269,7 +278,20 @@ func GetChain(ctx *cli.Context) (*core.ChainManager, common.Database, common.Dat
if err != nil {
Fatalf("Could not open database: %v", err)
}
return core.NewChainManager(blockDb, stateDb, new(event.TypeMux)), blockDb, stateDb
extraDb, err := ethdb.NewLDBDatabase(path.Join(dataDir, "extra"))
if err != nil {
Fatalf("Could not open database: %v", err)
}
eventMux := new(event.TypeMux)
chainManager := core.NewChainManager(blockDb, stateDb, eventMux)
pow := ethash.New(chainManager)
txPool := core.NewTxPool(eventMux, chainManager.State)
blockProcessor := core.NewBlockProcessor(stateDb, extraDb, pow, txPool, chainManager, eventMux)
chainManager.SetProcessor(blockProcessor)
return chainManager, blockDb, stateDb
}
func GetAccountManager(ctx *cli.Context) *accounts.Manager {

6
core/block_processor.go
View File

@ -18,6 +18,12 @@ import (
"gopkg.in/fatih/set.v0"
)
const (
// must be bumped when consensus algorithm is changed, this forces the upgradedb
// command to be run (forces the blocks to be imported again using the new algorithm)
BlockChainVersion = 1
)
var statelogger = logger.NewLogger("BLOCK")
type BlockProcessor struct {

7
core/chain_manager.go
View File

@ -284,11 +284,14 @@ func (self *ChainManager) Export(w io.Writer) error {
defer self.mu.RUnlock()
glog.V(logger.Info).Infof("exporting %v blocks...\n", self.currentBlock.Header().Number)
for block := self.currentBlock; block != nil; block = self.GetBlock(block.Header().ParentHash) {
if err := block.EncodeRLP(w); err != nil {
last := self.currentBlock.NumberU64()
for nr := uint64(0); nr <= last; nr++ {
if err := self.GetBlockByNumber(nr).EncodeRLP(w); err != nil {
return err
}
}
return nil
}

24
eth/backend.go
View File

@ -42,6 +42,9 @@ type Config struct {
ProtocolVersion int
NetworkId int
BlockChainVersion int
SkipBcVersionCheck bool // e.g. blockchain export
DataDir string
LogFile string
LogLevel int
@ -149,7 +152,7 @@ type Ethereum struct {
}
func New(config *Config) (*Ethereum, error) {
// Boostrap database
// Bootstrap database
logger.New(config.DataDir, config.LogFile, config.LogLevel)
if len(config.LogJSON) > 0 {
logger.NewJSONsystem(config.DataDir, config.LogJSON)
@ -179,6 +182,16 @@ func New(config *Config) (*Ethereum, error) {
saveProtocolVersion(blockDb, config.ProtocolVersion)
glog.V(logger.Info).Infof("Protocol Version: %v, Network Id: %v", config.ProtocolVersion, config.NetworkId)
if !config.SkipBcVersionCheck {
b, _ := blockDb.Get([]byte("BlockchainVersion"))
bcVersion := int(common.NewValue(b).Uint())
if bcVersion != config.BlockChainVersion && bcVersion != 0 {
return nil, fmt.Errorf("Blockchain DB version mismatch (%d / %d). Run geth upgradedb.\n", bcVersion, config.BlockChainVersion)
}
saveBlockchainVersion(blockDb, config.BlockChainVersion)
}
glog.V(logger.Info).Infof("Blockchain DB Version: %d", config.BlockChainVersion)
eth := &Ethereum{
shutdownChan: make(chan bool),
blockDb: blockDb,
@ -472,3 +485,12 @@ func saveProtocolVersion(db common.Database, protov int) {
db.Put([]byte("ProtocolVersion"), common.NewValue(protov).Bytes())
}
}
func saveBlockchainVersion(db common.Database, bcVersion int) {
d, _ := db.Get([]byte("BlockchainVersion"))
blockchainVersion := common.NewValue(d).Uint()
if blockchainVersion == 0 {
db.Put([]byte("BlockchainVersion"), common.NewValue(bcVersion).Bytes())
}
}