From a2919b5e17197afcb689b8f4144f255a5872f85d Mon Sep 17 00:00:00 2001 From: obscuren Date: Sun, 10 May 2015 23:12:18 +0200 Subject: [PATCH] core, eth, miner: improved tx removal & fatal error on db sync err * core: Added GasPriceChange event * eth: When one of the DB flush methods error a fatal error log message is given. Hopefully this will prevent corrupted databases from occuring. * miner: remove transactions with low gas price. Closes #906, #903 --- common/size.go | 6 ------ common/size_test.go | 14 -------------- core/events.go | 6 +++++- core/manager.go | 2 ++ eth/backend.go | 8 +++++--- miner/worker.go | 42 +++++++++++++++++++++++++++++++++++------- 6 files changed, 47 insertions(+), 31 deletions(-) diff --git a/common/size.go b/common/size.go index 0d9dbf558..4ea7f7b11 100644 --- a/common/size.go +++ b/common/size.go @@ -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" diff --git a/common/size_test.go b/common/size_test.go index 1cbeff0a8..cfe7efe31 100644 --- a/common/size_test.go +++ b/common/size_test.go @@ -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") -} diff --git a/core/events.go b/core/events.go index 3da668af5..1ea35c2f4 100644 --- a/core/events.go +++ b/core/events.go @@ -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{} diff --git a/core/manager.go b/core/manager.go index 9b5407a9e..433ada7ee 100644 --- a/core/manager.go +++ b/core/manager.go @@ -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 diff --git a/eth/backend.go b/eth/backend.go index 8f0789467..cdbe35b26 100644 --- a/eth/backend.go +++ b/eth/backend.go @@ -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 diff --git a/miner/worker.go b/miner/worker.go index 22493c235..4ba566eec 100644 --- a/miner/worker.go +++ b/miner/worker.go @@ -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" @@ -253,7 +254,12 @@ func (self *worker) makeCurrent() { 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() { @@ -269,27 +275,40 @@ func (self *worker) commitNewWork() { transactions := self.eth.TxPool().GetTransactions() sort.Sort(types.TxByNonce{transactions}) + accounts, _ := self.eth.AccountManager().Accounts() // Keep track of transactions which return errors so they can be removed var ( remove = set.New() tcount = 0 ignoredTransactors = set.New() + lowGasTransactors = set.New() + ownedAccounts = accountAddressesSet(accounts) + lowGasTxs types.Transactions ) - 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 { + 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 - 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]) + 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 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 !ownedAccounts.Has(from) { + lowGasTxs = append(lowGasTxs, tx) + } continue } @@ -327,6 +346,7 @@ func (self *worker) commitNewWork() { tcount++ } } + self.eth.TxPool().RemoveTransactions(lowGasTxs) var ( uncles []*types.Header @@ -423,3 +443,11 @@ 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 +}