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Merge pull request #15094 from karalabe/eth-auto-maxpeers

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eth: use maxpeers from p2p layer instead of extra config
This commit is contained in:
Péter Szilágyi 2017-09-06 10:38:37 +03:00 committed by GitHub
commit 1e67378df8
8 changed files with 24 additions and 33 deletions
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4
cmd/utils/flags.go
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@ -949,10 +949,6 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
cfg.NetworkId = ctx.GlobalUint64(NetworkIdFlag.Name)
}
// Ethereum needs to know maxPeers to calculate the light server peer ratio.
// TODO(fjl): ensure Ethereum can get MaxPeers from node.
cfg.MaxPeers = ctx.GlobalInt(MaxPeersFlag.Name)
if ctx.GlobalIsSet(CacheFlag.Name) {
cfg.DatabaseCache = ctx.GlobalInt(CacheFlag.Name)
}

30
eth/backend.go
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@ -57,15 +57,19 @@ type LesServer interface {
// Ethereum implements the Ethereum full node service.
type Ethereum struct {
config *Config
chainConfig *params.ChainConfig
// Channel for shutting down the service
shutdownChan chan bool // Channel for shutting down the ethereum
stopDbUpgrade func() error // stop chain db sequential key upgrade
// Handlers
txPool *core.TxPool
blockchain *core.BlockChain
protocolManager *ProtocolManager
lesServer LesServer
// DB interfaces
chainDb ethdb.Database // Block chain database
@ -98,7 +102,6 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
if !config.SyncMode.IsValid() {
return nil, fmt.Errorf("invalid sync mode %d", config.SyncMode)
}
chainDb, err := CreateDB(ctx, config, "chaindata")
if err != nil {
return nil, err
@ -111,6 +114,7 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
log.Info("Initialised chain configuration", "config", chainConfig)
eth := &Ethereum{
config: config,
chainDb: chainDb,
chainConfig: chainConfig,
eventMux: ctx.EventMux,
@ -153,21 +157,9 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
}
eth.txPool = core.NewTxPool(config.TxPool, eth.chainConfig, eth.blockchain)
maxPeers := config.MaxPeers
if config.LightServ > 0 {
// if we are running a light server, limit the number of ETH peers so that we reserve some space for incoming LES connections
// temporary solution until the new peer connectivity API is finished
halfPeers := maxPeers / 2
maxPeers -= config.LightPeers
if maxPeers < halfPeers {
maxPeers = halfPeers
}
}
if eth.protocolManager, err = NewProtocolManager(eth.chainConfig, config.SyncMode, config.NetworkId, maxPeers, eth.eventMux, eth.txPool, eth.engine, eth.blockchain, chainDb); err != nil {
if eth.protocolManager, err = NewProtocolManager(eth.chainConfig, config.SyncMode, config.NetworkId, eth.eventMux, eth.txPool, eth.engine, eth.blockchain, chainDb); err != nil {
return nil, err
}
eth.miner = miner.New(eth, eth.chainConfig, eth.EventMux(), eth.engine)
eth.miner.SetExtra(makeExtraData(config.ExtraData))
@ -376,7 +368,15 @@ func (s *Ethereum) Protocols() []p2p.Protocol {
func (s *Ethereum) Start(srvr *p2p.Server) error {
s.netRPCService = ethapi.NewPublicNetAPI(srvr, s.NetVersion())
s.protocolManager.Start()
// Figure out a max peers count based on the server limits
maxPeers := srvr.MaxPeers
if s.config.LightServ > 0 {
maxPeers -= s.config.LightPeers
if maxPeers < srvr.MaxPeers/2 {
maxPeers = srvr.MaxPeers / 2
}
}
s.protocolManager.Start(maxPeers)
if s.lesServer != nil {
s.lesServer.Start(srvr)
}

1
eth/config.go
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@ -79,7 +79,6 @@ type Config struct {
// Light client options
LightServ int `toml:",omitempty"` // Maximum percentage of time allowed for serving LES requests
LightPeers int `toml:",omitempty"` // Maximum number of LES client peers
MaxPeers int `toml:"-"` // Maximum number of global peers
// Database options
SkipBcVersionCheck bool `toml:"-"`

4
eth/gen_config.go
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@ -47,7 +47,6 @@ func (c Config) MarshalTOML() (interface{}, error) {
enc.SyncMode = c.SyncMode
enc.LightServ = c.LightServ
enc.LightPeers = c.LightPeers
enc.MaxPeers = c.MaxPeers
enc.SkipBcVersionCheck = c.SkipBcVersionCheck
enc.DatabaseHandles = c.DatabaseHandles
enc.DatabaseCache = c.DatabaseCache
@ -119,9 +118,6 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
if dec.LightPeers != nil {
c.LightPeers = *dec.LightPeers
}
if dec.MaxPeers != nil {
c.MaxPeers = *dec.MaxPeers
}
if dec.SkipBcVersionCheck != nil {
c.SkipBcVersionCheck = *dec.SkipBcVersionCheck
}

8
eth/handler.go
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@ -99,7 +99,7 @@ type ProtocolManager struct {
// NewProtocolManager returns a new ethereum sub protocol manager. The Ethereum sub protocol manages peers capable
// with the ethereum network.
func NewProtocolManager(config *params.ChainConfig, mode downloader.SyncMode, networkId uint64, maxPeers int, mux *event.TypeMux, txpool txPool, engine consensus.Engine, blockchain *core.BlockChain, chaindb ethdb.Database) (*ProtocolManager, error) {
func NewProtocolManager(config *params.ChainConfig, mode downloader.SyncMode, networkId uint64, mux *event.TypeMux, txpool txPool, engine consensus.Engine, blockchain *core.BlockChain, chaindb ethdb.Database) (*ProtocolManager, error) {
// Create the protocol manager with the base fields
manager := &ProtocolManager{
networkId: networkId,
@ -108,7 +108,6 @@ func NewProtocolManager(config *params.ChainConfig, mode downloader.SyncMode, ne
blockchain: blockchain,
chaindb: chaindb,
chainconfig: config,
maxPeers: maxPeers,
peers: newPeerSet(),
newPeerCh: make(chan *peer),
noMorePeers: make(chan struct{}),
@ -203,11 +202,14 @@ func (pm *ProtocolManager) removePeer(id string) {
}
}
func (pm *ProtocolManager) Start() {
func (pm *ProtocolManager) Start(maxPeers int) {
pm.maxPeers = maxPeers
// broadcast transactions
pm.txCh = make(chan core.TxPreEvent, txChanSize)
pm.txSub = pm.txpool.SubscribeTxPreEvent(pm.txCh)
go pm.txBroadcastLoop()
// broadcast mined blocks
pm.minedBlockSub = pm.eventMux.Subscribe(core.NewMinedBlockEvent{})
go pm.minedBroadcastLoop()

4
eth/handler_test.go
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@ -476,11 +476,11 @@ func testDAOChallenge(t *testing.T, localForked, remoteForked bool, timeout bool
genesis = gspec.MustCommit(db)
blockchain, _ = core.NewBlockChain(db, config, pow, vm.Config{})
)
pm, err := NewProtocolManager(config, downloader.FullSync, DefaultConfig.NetworkId, 1000, evmux, new(testTxPool), pow, blockchain, db)
pm, err := NewProtocolManager(config, downloader.FullSync, DefaultConfig.NetworkId, evmux, new(testTxPool), pow, blockchain, db)
if err != nil {
t.Fatalf("failed to start test protocol manager: %v", err)
}
pm.Start()
pm.Start(1000)
defer pm.Stop()
// Connect a new peer and check that we receive the DAO challenge

4
eth/helper_test.go
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@ -66,11 +66,11 @@ func newTestProtocolManager(mode downloader.SyncMode, blocks int, generator func
panic(err)
}
pm, err := NewProtocolManager(gspec.Config, mode, DefaultConfig.NetworkId, 1000, evmux, &testTxPool{added: newtx}, engine, blockchain, db)
pm, err := NewProtocolManager(gspec.Config, mode, DefaultConfig.NetworkId, evmux, &testTxPool{added: newtx}, engine, blockchain, db)
if err != nil {
return nil, err
}
pm.Start()
pm.Start(1000)
return pm, nil
}

2
params/bootnodes.go
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@ -19,7 +19,6 @@ package params
// MainnetBootnodes are the enode URLs of the P2P bootstrap nodes running on
// the main Ethereum network.
var MainnetBootnodes = []string{
// Ethereum Foundation Go Bootnodes
"enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c@52.16.188.185:30303", // IE
"enode://3f1d12044546b76342d59d4a05532c14b85aa669704bfe1f864fe079415aa2c02d743e03218e57a33fb94523adb54032871a6c51b2cc5514cb7c7e35b3ed0a99@13.93.211.84:30303", // US-WEST
@ -29,7 +28,6 @@ var MainnetBootnodes = []string{
// Ethereum Foundation Cpp Bootnodes
"enode://979b7fa28feeb35a4741660a16076f1943202cb72b6af70d327f053e248bab9ba81760f39d0701ef1d8f89cc1fbd2cacba0710a12cd5314d5e0c9021aa3637f9@5.1.83.226:30303", // DE
}
// TestnetBootnodes are the enode URLs of the P2P bootstrap nodes running on the