/
config.go
218 lines (169 loc) · 5.92 KB
/
config.go
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package raftv2
import (
"errors"
"fmt"
"strings"
"time"
"github.com/aergoio/aergo/message"
"github.com/aergoio/aergo/p2p/p2pkey"
"github.com/aergoio/aergo/types"
"github.com/aergoio/aergo/chain"
"github.com/aergoio/aergo/config"
"github.com/aergoio/aergo/consensus"
)
var (
ErrEmptyBPs = errors.New("BP list is empty")
ErrNotIncludedRaftMember = errors.New("this node isn't included in initial raft members")
ErrDupBP = errors.New("raft bp description is duplicated")
ErrInvalidRaftPeerID = errors.New("peerID of current raft bp is not equals to p2p configure")
)
const (
slotQueueMax = 100
DefaultBlockFactoryTickMs = 100
MinBlockFactoryTickMs = 10
DefaultTickMS = time.Millisecond * 50
DefaultElectionTickCount = 10
DefaultSlowNodeGap = 100
DefaultSnapFrequency = 30
)
var (
RaftTick = DefaultTickMS
// blockIntervalMs is the block genration interval in milli-seconds.
RaftSkipEmptyBlock = false
//MaxCommitQueueLen = DefaultCommitQueueLen
BlockFactoryTickMs time.Duration
BlockIntervalMs time.Duration
ConfSnapFrequency uint64 = DefaultSnapFrequency
ConfSnapshotCatchUpEntriesN uint64 = ConfSnapFrequency
ElectionTickCount = DefaultElectionTickCount
MaxSlowNodeGap uint64 = DefaultSlowNodeGap // Criteria for determining whether the server is in a slow state
StopDupCommit = false
)
func Init(raftCfg *config.RaftConfig) {
var tickMs time.Duration
//set default
if raftCfg.HeartbeatTick != 0 {
RaftTick = time.Duration(raftCfg.HeartbeatTick * 1000000)
}
if raftCfg.ElectionTickCount > 0 {
ElectionTickCount = raftCfg.ElectionTickCount
}
if raftCfg.SnapFrequency != 0 {
ConfSnapFrequency = raftCfg.SnapFrequency
ConfSnapshotCatchUpEntriesN = raftCfg.SnapFrequency
}
if raftCfg.BlockFactoryTickMs != 0 {
if raftCfg.BlockFactoryTickMs < MinBlockFactoryTickMs {
tickMs = MinBlockFactoryTickMs
} else {
tickMs = time.Duration(raftCfg.BlockFactoryTickMs)
}
} else {
tickMs = DefaultBlockFactoryTickMs
}
BlockFactoryTickMs = time.Millisecond * tickMs
if raftCfg.BlockIntervalMs != 0 {
BlockIntervalMs = time.Millisecond * time.Duration(raftCfg.BlockIntervalMs)
} else {
BlockIntervalMs = consensus.BlockInterval
}
if raftCfg.SlowNodeGap > 0 {
MaxSlowNodeGap = uint64(raftCfg.SlowNodeGap)
}
if raftCfg.StopDupCommit {
StopDupCommit = true
}
logger.Info().Int64("factory tick(ms)", BlockFactoryTickMs.Nanoseconds()/int64(time.Millisecond)).
Int64("interval(ms)", BlockIntervalMs.Nanoseconds()/int64(time.Millisecond)).Msg("set block factory tick/interval")
}
func (bf *BlockFactory) InitCluster(cfg *config.Config) error {
var err error
genesis := chain.Genesis
raftConfig := cfg.Consensus.Raft
if raftConfig == nil {
panic("raftconfig is not set. please set raftName, raftBPs.")
}
chainID, err := genesis.ID.Bytes()
if err != nil {
return err
}
bf.bpc = NewCluster(chainID, bf, raftConfig.Name, p2pkey.NodeID(), genesis.Timestamp, func(event *message.RaftClusterEvent) { bf.Tell(message.P2PSvc, event) })
if raftConfig.NewCluster {
var mbrAttrs []*types.MemberAttr
var ebps []types.EnterpriseBP
if !raftConfig.UseBackup {
ebps = chain.Genesis.EnterpriseBPs
} else {
ebps = getRecoverBp(raftConfig)
}
if mbrAttrs, err = parseBpsToMembers(ebps); err != nil {
logger.Error().Err(err).Bool("usebackup", raftConfig.UseBackup).Msg("failed to parse initial bp list")
return err
}
if err = bf.bpc.AddInitialMembers(mbrAttrs); err != nil {
logger.Error().Err(err).Msg("failed to add initial members")
return err
}
}
RaftSkipEmptyBlock = raftConfig.SkipEmpty
logger.Info().Bool("skipempty", RaftSkipEmptyBlock).Int64("rafttick(nanosec)", RaftTick.Nanoseconds()).Float64("interval(sec)", consensus.BlockInterval.Seconds()).Msg(bf.bpc.toString())
return nil
}
// getRecoverBp returns Enterprise BP to use initial bp of new cluster for recovery from backup
func getRecoverBp(raftConfig *config.RaftConfig) []types.EnterpriseBP {
if raftConfig.RecoverBP == nil {
logger.Fatal().Msg("need RecoverBP in config to create a new cluster")
}
cfgBP := raftConfig.RecoverBP
return []types.EnterpriseBP{{Name: cfgBP.Name, Address: cfgBP.Address, PeerID: cfgBP.PeerID}}
}
func parseBpsToMembers(bps []types.EnterpriseBP) ([]*types.MemberAttr, error) {
bpLen := len(bps)
if bpLen == 0 {
return nil, ErrEmptyBPs
}
mbrs := make([]*types.MemberAttr, bpLen)
for i, bp := range bps {
trimmedAddr := strings.TrimSpace(bp.Address)
// TODO when p2p is applied, have to validate peer address
if _, err := types.ParseMultiaddrWithResolve(trimmedAddr); err != nil {
return nil, err
}
peerID, err := types.IDB58Decode(bp.PeerID)
if err != nil {
return nil, fmt.Errorf("invalid raft peerID BP[%d]:%s", i, bp.PeerID)
}
mbrs[i] = &types.MemberAttr{Name: bp.Name, Address: trimmedAddr, PeerID: []byte(peerID)}
}
return mbrs, nil
}
func (cl *Cluster) AddInitialMembers(mbrs []*types.MemberAttr) error {
logger.Debug().Msg("add cluster members from config file")
for _, mbrAttr := range mbrs {
m := consensus.NewMember(mbrAttr.Name, mbrAttr.Address, types.PeerID(mbrAttr.PeerID), cl.chainID, cl.chainTimestamp)
if err := cl.isValidMember(m); err != nil {
return err
}
if err := cl.addMember(m, false); err != nil {
return err
}
}
if cl.Members().len() == 0 {
logger.Fatal().Str("cluster", cl.toString()).Msg("can't start raft server because there are no members in cluster")
}
if cl.Members().getMemberByName(cl.NodeName()) == nil {
logger.Fatal().Str("cluster", cl.toString()).Msg("node name of config is not included in genesis block")
}
return nil
}
func (cl *Cluster) SetThisNodeID() error {
cl.Lock()
defer cl.Unlock()
var member *consensus.Member
if member = cl.Members().getMemberByName(cl.NodeName()); member == nil {
return ErrNotIncludedRaftMember
}
// it can be reset when this node is added to cluster
cl.SetNodeID(member.ID)
return nil
}