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Merge pull request #908 from obscuren/develop

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core, eth, miner: improved tx removal & fatal error on db sync err
This commit is contained in:
Jeffrey Wilcke 2015-05-11 02:59:35 -07:00
commit 5176fbc6fa
9 changed files with 135 additions and 97 deletions
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6
common/size.go
View File

@ -44,12 +44,6 @@ func CurrencyToString(num *big.Int) string {
)
switch {
case num.Cmp(Douglas) >= 0:
fin = new(big.Int).Div(num, Douglas)
denom = "Douglas"
case num.Cmp(Einstein) >= 0:
fin = new(big.Int).Div(num, Einstein)
denom = "Einstein"
case num.Cmp(Ether) >= 0:
fin = new(big.Int).Div(num, Ether)
denom = "Ether"

14
common/size_test.go
View File

@ -25,8 +25,6 @@ func (s *SizeSuite) TestStorageSizeString(c *checker.C) {
}
func (s *CommonSuite) TestCommon(c *checker.C) {
douglas := CurrencyToString(BigPow(10, 43))
einstein := CurrencyToString(BigPow(10, 22))
ether := CurrencyToString(BigPow(10, 19))
finney := CurrencyToString(BigPow(10, 16))
szabo := CurrencyToString(BigPow(10, 13))
@ -35,8 +33,6 @@ func (s *CommonSuite) TestCommon(c *checker.C) {
ada := CurrencyToString(BigPow(10, 4))
wei := CurrencyToString(big.NewInt(10))
c.Assert(douglas, checker.Equals, "10 Douglas")
c.Assert(einstein, checker.Equals, "10 Einstein")
c.Assert(ether, checker.Equals, "10 Ether")
c.Assert(finney, checker.Equals, "10 Finney")
c.Assert(szabo, checker.Equals, "10 Szabo")
@ -45,13 +41,3 @@ func (s *CommonSuite) TestCommon(c *checker.C) {
c.Assert(ada, checker.Equals, "10 Ada")
c.Assert(wei, checker.Equals, "10 Wei")
}
func (s *CommonSuite) TestLarge(c *checker.C) {
douglaslarge := CurrencyToString(BigPow(100000000, 43))
adalarge := CurrencyToString(BigPow(100000000, 4))
weilarge := CurrencyToString(big.NewInt(100000000))
c.Assert(douglaslarge, checker.Equals, "10000E298 Douglas")
c.Assert(adalarge, checker.Equals, "10000E7 Einstein")
c.Assert(weilarge, checker.Equals, "100 Babbage")
}

6
core/events.go
View File

@ -1,8 +1,10 @@
package core
import (
"github.com/ethereum/go-ethereum/core/types"
"math/big"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
)
// TxPreEvent is posted when a transaction enters the transaction pool.
@ -44,6 +46,8 @@ type ChainUncleEvent struct {
type ChainHeadEvent struct{ Block *types.Block }
type GasPriceChanged struct{ Price *big.Int }
// Mining operation events
type StartMining struct{}
type TopMining struct{}

2
core/manager.go
View File

@ -1,12 +1,14 @@
package core
import (
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/p2p"
)
type Backend interface {
AccountManager() *accounts.Manager
BlockProcessor() *BlockProcessor
ChainManager() *ChainManager
TxPool() *TxPool

2
core/transaction_pool.go
View File

@ -21,7 +21,7 @@ var (
ErrInvalidSender = errors.New("Invalid sender")
ErrNonce = errors.New("Nonce too low")
ErrBalance = errors.New("Insufficient balance")
ErrNonExistentAccount = errors.New("Account does not exist")
ErrNonExistentAccount = errors.New("Account does not exist or account balance too low")
ErrInsufficientFunds = errors.New("Insufficient funds for gas * price + value")
ErrIntrinsicGas = errors.New("Intrinsic gas too low")
ErrGasLimit = errors.New("Exceeds block gas limit")

8
eth/backend.go
View File

@ -451,6 +451,8 @@ func (s *Ethereum) Start() error {
return nil
}
// sync databases every minute. If flushing fails we exit immediatly. The system
// may not continue under any circumstances.
func (s *Ethereum) syncDatabases() {
ticker := time.NewTicker(1 * time.Minute)
done:
@ -459,13 +461,13 @@ done:
case <-ticker.C:
// don't change the order of database flushes
if err := s.extraDb.Flush(); err != nil {
glog.V(logger.Error).Infof("error: flush extraDb: %v\n", err)
glog.Fatalf("fatal error: flush extraDb: %v\n", err)
}
if err := s.stateDb.Flush(); err != nil {
glog.V(logger.Error).Infof("error: flush stateDb: %v\n", err)
glog.Fatalf("fatal error: flush stateDb: %v\n", err)
}
if err := s.blockDb.Flush(); err != nil {
glog.V(logger.Error).Infof("error: flush blockDb: %v\n", err)
glog.Fatalf("fatal error: flush blockDb: %v\n", err)
}
case <-s.shutdownChan:
break done

4
miner/miner.go
View File

@ -7,6 +7,8 @@ import (
"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/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/pow"
)
@ -47,6 +49,8 @@ func (m *Miner) SetGasPrice(price *big.Int) {
}
func (self *Miner) Start(coinbase common.Address) {
glog.V(logger.Info).Infoln("Starting mining operation")
self.mining = true
self.worker.coinbase = coinbase
self.worker.start()

188
miner/worker.go
View File

@ -7,6 +7,7 @@ import (
"sync"
"sync/atomic"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
@ -21,12 +22,18 @@ import (
var jsonlogger = logger.NewJsonLogger()
type environment struct {
totalUsedGas *big.Int
state *state.StateDB
coinbase *state.StateObject
block *types.Block
family *set.Set
uncles *set.Set
totalUsedGas *big.Int
state *state.StateDB
coinbase *state.StateObject
block *types.Block
family *set.Set
uncles *set.Set
remove *set.Set
tcount int
ignoredTransactors *set.Set
lowGasTransactors *set.Set
ownedAccounts *set.Set
lowGasTxs types.Transactions
}
func env(block *types.Block, eth core.Backend) *environment {
@ -128,12 +135,13 @@ func (self *worker) start() {
self.mu.Lock()
defer self.mu.Unlock()
atomic.StoreInt32(&self.mining, 1)
// spin up agents
for _, agent := range self.agents {
agent.Start()
}
atomic.StoreInt32(&self.mining, 1)
}
func (self *worker) stop() {
@ -174,8 +182,11 @@ out:
self.possibleUncles[ev.Block.Hash()] = ev.Block
self.uncleMu.Unlock()
case core.TxPreEvent:
// Apply transaction to the pending state if we're not mining
if atomic.LoadInt32(&self.mining) == 0 {
self.commitNewWork()
self.mu.Lock()
self.commitTransactions(types.Transactions{ev.Tx})
self.mu.Unlock()
}
}
case <-self.quit:
@ -241,19 +252,33 @@ func (self *worker) makeCurrent() {
}
block.Header().Extra = self.extra
self.current = env(block, self.eth)
current := env(block, self.eth)
for _, ancestor := range self.chain.GetAncestors(block, 7) {
self.current.family.Add(ancestor.Hash())
current.family.Add(ancestor.Hash())
}
accounts, _ := self.eth.AccountManager().Accounts()
// Keep track of transactions which return errors so they can be removed
current.remove = set.New()
current.tcount = 0
current.ignoredTransactors = set.New()
current.lowGasTransactors = set.New()
current.ownedAccounts = accountAddressesSet(accounts)
parent := self.chain.GetBlock(self.current.block.ParentHash())
self.current.coinbase.SetGasPool(core.CalcGasLimit(parent))
parent := self.chain.GetBlock(current.block.ParentHash())
current.coinbase.SetGasPool(core.CalcGasLimit(parent))
self.current = current
}
func (w *worker) setGasPrice(p *big.Int) {
w.mu.Lock()
defer w.mu.Unlock()
w.gasPrice = p
// calculate the minimal gas price the miner accepts when sorting out transactions.
const pct = int64(90)
w.gasPrice = gasprice(p, pct)
w.mux.Post(core.GasPriceChanged{w.gasPrice})
}
func (self *worker) commitNewWork() {
@ -265,68 +290,14 @@ func (self *worker) commitNewWork() {
defer self.currentMu.Unlock()
self.makeCurrent()
current := self.current
transactions := self.eth.TxPool().GetTransactions()
sort.Sort(types.TxByNonce{transactions})
// Keep track of transactions which return errors so they can be removed
var (
remove = set.New()
tcount = 0
ignoredTransactors = set.New()
)
const pct = int64(90)
// calculate the minimal gas price the miner accepts when sorting out transactions.
minprice := gasprice(self.gasPrice, pct)
for _, tx := range transactions {
// We can skip err. It has already been validated in the tx pool
from, _ := tx.From()
// check if it falls within margin
if tx.GasPrice().Cmp(minprice) < 0 {
// ignore the transaction and transactor. We ignore the transactor
// because nonce will fail after ignoring this transaction so there's
// no point
ignoredTransactors.Add(from)
glog.V(logger.Info).Infof("transaction(%x) below gas price (<%d%% ask price). All sequential txs from this address(%x) will fail\n", tx.Hash().Bytes()[:4], pct, from[:4])
continue
}
// Move on to the next transaction when the transactor is in ignored transactions set
// This may occur when a transaction hits the gas limit. When a gas limit is hit and
// the transaction is processed (that could potentially be included in the block) it
// will throw a nonce error because the previous transaction hasn't been processed.
// Therefor we need to ignore any transaction after the ignored one.
if ignoredTransactors.Has(from) {
continue
}
self.current.state.StartRecord(tx.Hash(), common.Hash{}, 0)
err := self.commitTransaction(tx)
switch {
case core.IsNonceErr(err) || core.IsInvalidTxErr(err):
// Remove invalid transactions
from, _ := tx.From()
self.chain.TxState().RemoveNonce(from, tx.Nonce())
remove.Add(tx.Hash())
if glog.V(logger.Detail) {
glog.Infof("TX (%x) failed, will be removed: %v\n", tx.Hash().Bytes()[:4], err)
}
case state.IsGasLimitErr(err):
from, _ := tx.From()
// ignore the transactor so no nonce errors will be thrown for this account
// next time the worker is run, they'll be picked up again.
ignoredTransactors.Add(from)
glog.V(logger.Detail).Infof("Gas limit reached for (%x) in this block. Continue to try smaller txs\n", from[:4])
default:
tcount++
}
}
// commit transactions for this run
self.commitTransactions(transactions)
self.eth.TxPool().RemoveTransactions(current.lowGasTxs)
var (
uncles []*types.Header
@ -352,7 +323,7 @@ func (self *worker) commitNewWork() {
// We only care about logging if we're actually mining
if atomic.LoadInt32(&self.mining) == 1 {
glog.V(logger.Info).Infof("commit new work on block %v with %d txs & %d uncles\n", self.current.block.Number(), tcount, len(uncles))
glog.V(logger.Info).Infof("commit new work on block %v with %d txs & %d uncles\n", current.block.Number(), current.tcount, len(uncles))
}
for _, hash := range badUncles {
@ -392,6 +363,71 @@ func (self *worker) commitUncle(uncle *types.Header) error {
return nil
}
func (self *worker) commitTransactions(transactions types.Transactions) {
current := self.current
for _, tx := range transactions {
// We can skip err. It has already been validated in the tx pool
from, _ := tx.From()
// check if it falls within margin
if tx.GasPrice().Cmp(self.gasPrice) < 0 {
// ignore the transaction and transactor. We ignore the transactor
// because nonce will fail after ignoring this transaction so there's
// no point
current.lowGasTransactors.Add(from)
glog.V(logger.Info).Infof("transaction(%x) below gas price (tx=%v ask=%v). All sequential txs from this address(%x) will be ignored\n", tx.Hash().Bytes()[:4], common.CurrencyToString(tx.GasPrice()), common.CurrencyToString(self.gasPrice), from[:4])
}
// Continue with the next transaction if the transaction sender is included in
// the low gas tx set. This will also remove the tx and all sequential transaction
// from this transactor
if current.lowGasTransactors.Has(from) {
// add tx to the low gas set. This will be removed at the end of the run
// owned accounts are ignored
if !current.ownedAccounts.Has(from) {
current.lowGasTxs = append(current.lowGasTxs, tx)
}
continue
}
// Move on to the next transaction when the transactor is in ignored transactions set
// This may occur when a transaction hits the gas limit. When a gas limit is hit and
// the transaction is processed (that could potentially be included in the block) it
// will throw a nonce error because the previous transaction hasn't been processed.
// Therefor we need to ignore any transaction after the ignored one.
if current.ignoredTransactors.Has(from) {
continue
}
self.current.state.StartRecord(tx.Hash(), common.Hash{}, 0)
err := self.commitTransaction(tx)
switch {
case core.IsNonceErr(err) || core.IsInvalidTxErr(err):
// Remove invalid transactions
from, _ := tx.From()
self.chain.TxState().RemoveNonce(from, tx.Nonce())
current.remove.Add(tx.Hash())
if glog.V(logger.Detail) {
glog.Infof("TX (%x) failed, will be removed: %v\n", tx.Hash().Bytes()[:4], err)
}
case state.IsGasLimitErr(err):
from, _ := tx.From()
// ignore the transactor so no nonce errors will be thrown for this account
// next time the worker is run, they'll be picked up again.
current.ignoredTransactors.Add(from)
glog.V(logger.Detail).Infof("Gas limit reached for (%x) in this block. Continue to try smaller txs\n", from[:4])
default:
current.tcount++
}
}
}
func (self *worker) commitTransaction(tx *types.Transaction) error {
snap := self.current.state.Copy()
receipt, _, err := self.proc.ApplyTransaction(self.current.coinbase, self.current.state, self.current.block, tx, self.current.totalUsedGas, true)
@ -423,3 +459,11 @@ func gasprice(price *big.Int, pct int64) *big.Int {
p.Mul(p, big.NewInt(pct))
return p
}
func accountAddressesSet(accounts []accounts.Account) *set.Set {
accountSet := set.New()
for _, account := range accounts {
accountSet.Add(common.BytesToAddress(account.Address))
}
return accountSet
}

2
rpc/jeth.go
View File

@ -2,6 +2,7 @@ package rpc
import (
"encoding/json"
"fmt"
"github.com/ethereum/go-ethereum/jsre"
"github.com/robertkrimen/otto"
@ -52,6 +53,7 @@ func (self *Jeth) Send(call otto.FunctionCall) (response otto.Value) {
var respif interface{}
err = self.ethApi.GetRequestReply(&req, &respif)
if err != nil {
fmt.Println("Error response:", err)
return self.err(call, -32603, err.Error(), req.Id)
}
call.Otto.Set("ret_jsonrpc", jsonrpcver)