bsc/eth/ethconfig/config.go
rjl493456442 59f7b289c3
cmd, core, eth, graphql, trie: no persisted clean trie cache file (#27525)
The clean trie cache is persisted periodically, therefore Geth can
quickly warmup the cache in next restart.

However it will reduce the robustness of system. The assumption is
held in Geth that if the parent trie node is present, then the entire
sub-trie associated with the parent are all prensent.

Imagine the scenario that Geth rewinds itself to a past block and
restart, but Geth finds the root node of "future state" in clean
cache then regard this state is present in disk, while is not in fact.

Another example is offline pruning tool. Whenever an offline pruning
is performed, the clean cache file has to be removed to aviod hitting
the root node of "deleted states" in clean cache.

All in all, compare with the minor performance gain, system robustness
is something we care more.
2023-07-04 10:21:06 +03:00

182 lines
6.6 KiB
Go

// Copyright 2021 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// Package ethconfig contains the configuration of the ETH and LES protocols.
package ethconfig
import (
"errors"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/consensus/beacon"
"github.com/ethereum/go-ethereum/consensus/clique"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/txpool/legacypool"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/eth/gasprice"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/miner"
"github.com/ethereum/go-ethereum/params"
)
// FullNodeGPO contains default gasprice oracle settings for full node.
var FullNodeGPO = gasprice.Config{
Blocks: 20,
Percentile: 60,
MaxHeaderHistory: 1024,
MaxBlockHistory: 1024,
MaxPrice: gasprice.DefaultMaxPrice,
IgnorePrice: gasprice.DefaultIgnorePrice,
}
// LightClientGPO contains default gasprice oracle settings for light client.
var LightClientGPO = gasprice.Config{
Blocks: 2,
Percentile: 60,
MaxHeaderHistory: 300,
MaxBlockHistory: 5,
MaxPrice: gasprice.DefaultMaxPrice,
IgnorePrice: gasprice.DefaultIgnorePrice,
}
// Defaults contains default settings for use on the Ethereum main net.
var Defaults = Config{
SyncMode: downloader.SnapSync,
NetworkId: 1,
TxLookupLimit: 2350000,
LightPeers: 100,
UltraLightFraction: 75,
DatabaseCache: 512,
TrieCleanCache: 154,
TrieDirtyCache: 256,
TrieTimeout: 60 * time.Minute,
SnapshotCache: 102,
FilterLogCacheSize: 32,
Miner: miner.DefaultConfig,
TxPool: legacypool.DefaultConfig,
RPCGasCap: 50000000,
RPCEVMTimeout: 5 * time.Second,
GPO: FullNodeGPO,
RPCTxFeeCap: 1, // 1 ether
}
//go:generate go run github.com/fjl/gencodec -type Config -formats toml -out gen_config.go
// Config contains configuration options for of the ETH and LES protocols.
type Config struct {
// The genesis block, which is inserted if the database is empty.
// If nil, the Ethereum main net block is used.
Genesis *core.Genesis `toml:",omitempty"`
// Protocol options
NetworkId uint64 // Network ID to use for selecting peers to connect to
SyncMode downloader.SyncMode
// This can be set to list of enrtree:// URLs which will be queried for
// for nodes to connect to.
EthDiscoveryURLs []string
SnapDiscoveryURLs []string
NoPruning bool // Whether to disable pruning and flush everything to disk
NoPrefetch bool // Whether to disable prefetching and only load state on demand
TxLookupLimit uint64 `toml:",omitempty"` // The maximum number of blocks from head whose tx indices are reserved.
// RequiredBlocks is a set of block number -> hash mappings which must be in the
// canonical chain of all remote peers. Setting the option makes geth verify the
// presence of these blocks for every new peer connection.
RequiredBlocks map[uint64]common.Hash `toml:"-"`
// Light client options
LightServ int `toml:",omitempty"` // Maximum percentage of time allowed for serving LES requests
LightIngress int `toml:",omitempty"` // Incoming bandwidth limit for light servers
LightEgress int `toml:",omitempty"` // Outgoing bandwidth limit for light servers
LightPeers int `toml:",omitempty"` // Maximum number of LES client peers
LightNoPrune bool `toml:",omitempty"` // Whether to disable light chain pruning
LightNoSyncServe bool `toml:",omitempty"` // Whether to serve light clients before syncing
// Ultra Light client options
UltraLightServers []string `toml:",omitempty"` // List of trusted ultra light servers
UltraLightFraction int `toml:",omitempty"` // Percentage of trusted servers to accept an announcement
UltraLightOnlyAnnounce bool `toml:",omitempty"` // Whether to only announce headers, or also serve them
// Database options
SkipBcVersionCheck bool `toml:"-"`
DatabaseHandles int `toml:"-"`
DatabaseCache int
DatabaseFreezer string
TrieCleanCache int
TrieDirtyCache int
TrieTimeout time.Duration
SnapshotCache int
Preimages bool
// This is the number of blocks for which logs will be cached in the filter system.
FilterLogCacheSize int
// Mining options
Miner miner.Config
// Transaction pool options
TxPool legacypool.Config
// Gas Price Oracle options
GPO gasprice.Config
// Enables tracking of SHA3 preimages in the VM
EnablePreimageRecording bool
// Miscellaneous options
DocRoot string `toml:"-"`
// RPCGasCap is the global gas cap for eth-call variants.
RPCGasCap uint64
// RPCEVMTimeout is the global timeout for eth-call.
RPCEVMTimeout time.Duration
// RPCTxFeeCap is the global transaction fee(price * gaslimit) cap for
// send-transaction variants. The unit is ether.
RPCTxFeeCap float64
// OverrideCancun (TODO: remove after the fork)
OverrideCancun *uint64 `toml:",omitempty"`
// OverrideVerkle (TODO: remove after the fork)
OverrideVerkle *uint64 `toml:",omitempty"`
}
// CreateConsensusEngine creates a consensus engine for the given chain config.
// Clique is allowed for now to live standalone, but ethash is forbidden and can
// only exist on already merged networks.
func CreateConsensusEngine(config *params.ChainConfig, db ethdb.Database) (consensus.Engine, error) {
// If proof-of-authority is requested, set it up
if config.Clique != nil {
return beacon.New(clique.New(config.Clique, db)), nil
}
// If defaulting to proof-of-work, enforce an already merged network since
// we cannot run PoW algorithms and more, so we cannot even follow a chain
// not coordinated by a beacon node.
if !config.TerminalTotalDifficultyPassed {
return nil, errors.New("ethash is only supported as a historical component of already merged networks")
}
return beacon.New(ethash.NewFaker()), nil
}