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precommit_batch.go
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precommit_batch.go
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package sealing
import (
"bytes"
"context"
"sort"
"sync"
"time"
"golang.org/x/xerrors"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-state-types/abi"
"github.com/filecoin-project/go-state-types/big"
"github.com/filecoin-project/go-state-types/builtin"
verifregtypes "github.com/filecoin-project/go-state-types/builtin/v9/verifreg"
"github.com/filecoin-project/go-state-types/network"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
"github.com/filecoin-project/lotus/chain/actors/policy"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/node/config"
"github.com/filecoin-project/lotus/node/modules/dtypes"
"github.com/filecoin-project/lotus/storage/pipeline/sealiface"
)
//go:generate go run github.com/golang/mock/mockgen -destination=mocks/mock_precommit_batcher.go -package=mocks . PreCommitBatcherApi
type PreCommitBatcherApi interface {
MpoolPushMessage(context.Context, *types.Message, *api.MessageSendSpec) (*types.SignedMessage, error)
GasEstimateMessageGas(context.Context, *types.Message, *api.MessageSendSpec, types.TipSetKey) (*types.Message, error)
StateMinerInfo(context.Context, address.Address, types.TipSetKey) (api.MinerInfo, error)
StateMinerAvailableBalance(context.Context, address.Address, types.TipSetKey) (big.Int, error)
ChainHead(ctx context.Context) (*types.TipSet, error)
StateNetworkVersion(ctx context.Context, tsk types.TipSetKey) (network.Version, error)
StateGetAllocationForPendingDeal(ctx context.Context, dealId abi.DealID, tsk types.TipSetKey) (*verifregtypes.Allocation, error)
StateGetAllocation(ctx context.Context, clientAddr address.Address, allocationId verifregtypes.AllocationId, tsk types.TipSetKey) (*verifregtypes.Allocation, error)
// Address selector
WalletBalance(context.Context, address.Address) (types.BigInt, error)
WalletHas(context.Context, address.Address) (bool, error)
StateAccountKey(context.Context, address.Address, types.TipSetKey) (address.Address, error)
StateLookupID(context.Context, address.Address, types.TipSetKey) (address.Address, error)
}
type preCommitEntry struct {
deposit abi.TokenAmount
pci *miner.SectorPreCommitInfo
}
type PreCommitBatcher struct {
api PreCommitBatcherApi
maddr address.Address
mctx context.Context
addrSel AddressSelector
feeCfg config.MinerFeeConfig
getConfig dtypes.GetSealingConfigFunc
cutoffs map[abi.SectorNumber]time.Time
todo map[abi.SectorNumber]*preCommitEntry
waiting map[abi.SectorNumber][]chan sealiface.PreCommitBatchRes
notify, stop, stopped chan struct{}
force chan chan []sealiface.PreCommitBatchRes
lk sync.Mutex
}
func NewPreCommitBatcher(mctx context.Context, maddr address.Address, api PreCommitBatcherApi, addrSel AddressSelector, feeCfg config.MinerFeeConfig, getConfig dtypes.GetSealingConfigFunc) *PreCommitBatcher {
b := &PreCommitBatcher{
api: api,
maddr: maddr,
mctx: mctx,
addrSel: addrSel,
feeCfg: feeCfg,
getConfig: getConfig,
cutoffs: map[abi.SectorNumber]time.Time{},
todo: map[abi.SectorNumber]*preCommitEntry{},
waiting: map[abi.SectorNumber][]chan sealiface.PreCommitBatchRes{},
notify: make(chan struct{}, 1),
force: make(chan chan []sealiface.PreCommitBatchRes),
stop: make(chan struct{}),
stopped: make(chan struct{}),
}
go b.run()
return b
}
func (b *PreCommitBatcher) run() {
var forceRes chan []sealiface.PreCommitBatchRes
var lastRes []sealiface.PreCommitBatchRes
cfg, err := b.getConfig()
if err != nil {
panic(err)
}
timer := time.NewTimer(b.batchWait(cfg.PreCommitBatchWait, cfg.PreCommitBatchSlack))
for {
if forceRes != nil {
forceRes <- lastRes
forceRes = nil
}
lastRes = nil
var sendAboveMax bool
select {
case <-b.stop:
close(b.stopped)
return
case <-b.notify:
sendAboveMax = true
case <-timer.C:
// do nothing
case fr := <-b.force: // user triggered
forceRes = fr
}
var err error
lastRes, err = b.maybeStartBatch(sendAboveMax)
if err != nil {
log.Warnw("PreCommitBatcher processBatch error", "error", err)
}
if !timer.Stop() {
select {
case <-timer.C:
default:
}
}
timer.Reset(b.batchWait(cfg.PreCommitBatchWait, cfg.PreCommitBatchSlack))
}
}
func (b *PreCommitBatcher) batchWait(maxWait, slack time.Duration) time.Duration {
now := time.Now()
b.lk.Lock()
defer b.lk.Unlock()
if len(b.todo) == 0 {
return maxWait
}
var cutoff time.Time
for sn := range b.todo {
sectorCutoff := b.cutoffs[sn]
if cutoff.IsZero() || (!sectorCutoff.IsZero() && sectorCutoff.Before(cutoff)) {
cutoff = sectorCutoff
}
}
for sn := range b.waiting {
sectorCutoff := b.cutoffs[sn]
if cutoff.IsZero() || (!sectorCutoff.IsZero() && sectorCutoff.Before(cutoff)) {
cutoff = sectorCutoff
}
}
if cutoff.IsZero() {
return maxWait
}
cutoff = cutoff.Add(-slack)
if cutoff.Before(now) {
return time.Nanosecond // can't return 0
}
wait := cutoff.Sub(now)
if wait > maxWait {
wait = maxWait
}
return wait
}
func (b *PreCommitBatcher) maybeStartBatch(notif bool) ([]sealiface.PreCommitBatchRes, error) {
b.lk.Lock()
defer b.lk.Unlock()
total := len(b.todo)
if total == 0 {
return nil, nil // nothing to do
}
cfg, err := b.getConfig()
if err != nil {
return nil, xerrors.Errorf("getting config: %w", err)
}
ts, err := b.api.ChainHead(b.mctx)
if err != nil {
return nil, err
}
curBasefeeLow := false
if !cfg.BatchPreCommitAboveBaseFee.Equals(big.Zero()) && ts.MinTicketBlock().ParentBaseFee.LessThan(cfg.BatchPreCommitAboveBaseFee) {
curBasefeeLow = true
}
// if this wasn't an user-forced batch, and we're not at/above the max batch size,
// and we're not above the basefee threshold, don't batch yet
if notif && total < cfg.MaxPreCommitBatch && !curBasefeeLow {
return nil, nil
}
nv, err := b.api.StateNetworkVersion(b.mctx, ts.Key())
if err != nil {
return nil, xerrors.Errorf("couldn't get network version: %w", err)
}
// For precommits the only method to precommit sectors after nv21(22?) is to use the new precommit_batch2 method
// So we always batch
res, err := b.processBatch(cfg, ts.Key(), ts.MinTicketBlock().ParentBaseFee, nv)
if err != nil && len(res) == 0 {
return nil, err
}
for _, r := range res {
if err != nil {
r.Error = err.Error()
}
for _, sn := range r.Sectors {
for _, ch := range b.waiting[sn] {
ch <- r // buffered
}
delete(b.waiting, sn)
delete(b.todo, sn)
delete(b.cutoffs, sn)
}
}
return res, nil
}
func (b *PreCommitBatcher) processPreCommitBatch(cfg sealiface.Config, bf abi.TokenAmount, entries []*preCommitEntry, nv network.Version) ([]sealiface.PreCommitBatchRes, error) {
params := miner.PreCommitSectorBatchParams2{}
deposit := big.Zero()
var res sealiface.PreCommitBatchRes
for _, p := range entries {
res.Sectors = append(res.Sectors, p.pci.SectorNumber)
params.Sectors = append(params.Sectors, *p.pci)
deposit = big.Add(deposit, p.deposit)
}
enc := new(bytes.Buffer)
if err := params.MarshalCBOR(enc); err != nil {
res.Error = err.Error()
return []sealiface.PreCommitBatchRes{res}, xerrors.Errorf("couldn't serialize PreCommitSectorBatchParams: %w", err)
}
mi, err := b.api.StateMinerInfo(b.mctx, b.maddr, types.EmptyTSK)
if err != nil {
res.Error = err.Error()
return []sealiface.PreCommitBatchRes{res}, xerrors.Errorf("couldn't get miner info: %w", err)
}
maxFee := b.feeCfg.MaxPreCommitBatchGasFee.FeeForSectors(len(params.Sectors))
aggFeeRaw, err := policy.AggregatePreCommitNetworkFee(nv, len(params.Sectors), bf)
if err != nil {
log.Errorf("getting aggregate precommit network fee: %s", err)
res.Error = err.Error()
return []sealiface.PreCommitBatchRes{res}, xerrors.Errorf("getting aggregate precommit network fee: %s", err)
}
aggFee := big.Div(big.Mul(aggFeeRaw, aggFeeNum), aggFeeDen)
needFunds := big.Add(deposit, aggFee)
needFunds, err = collateralSendAmount(b.mctx, b.api, b.maddr, cfg, needFunds)
if err != nil {
return []sealiface.PreCommitBatchRes{res}, err
}
goodFunds := big.Add(maxFee, needFunds)
from, _, err := b.addrSel.AddressFor(b.mctx, b.api, mi, api.PreCommitAddr, goodFunds, deposit)
if err != nil {
return []sealiface.PreCommitBatchRes{res}, xerrors.Errorf("no good address found: %w", err)
}
_, err = simulateMsgGas(b.mctx, b.api, from, b.maddr, builtin.MethodsMiner.PreCommitSectorBatch2, needFunds, maxFee, enc.Bytes())
if err != nil && (!api.ErrorIsIn(err, []error{&api.ErrOutOfGas{}}) || len(entries) == 1) {
res.Error = err.Error()
return []sealiface.PreCommitBatchRes{res}, xerrors.Errorf("simulating PreCommitBatch %w", err)
}
// If we're out of gas, split the batch in half and evaluate again
if api.ErrorIsIn(err, []error{&api.ErrOutOfGas{}}) {
log.Warnf("PreCommitBatch out of gas, splitting batch in half and trying again")
mid := len(entries) / 2
ret0, _ := b.processPreCommitBatch(cfg, bf, entries[:mid], nv)
ret1, _ := b.processPreCommitBatch(cfg, bf, entries[mid:], nv)
return append(ret0, ret1...), nil
}
// If state call succeeds, we can send the message for real
mcid, err := sendMsg(b.mctx, b.api, from, b.maddr, builtin.MethodsMiner.PreCommitSectorBatch2, needFunds, maxFee, enc.Bytes())
if err != nil {
res.Error = err.Error()
return []sealiface.PreCommitBatchRes{res}, xerrors.Errorf("pushing message to mpool: %w", err)
}
res.Msg = &mcid
return []sealiface.PreCommitBatchRes{res}, nil
}
func (b *PreCommitBatcher) processBatch(cfg sealiface.Config, tsk types.TipSetKey, bf abi.TokenAmount, nv network.Version) ([]sealiface.PreCommitBatchRes, error) {
var pcEntries []*preCommitEntry
for _, p := range b.todo {
pcEntries = append(pcEntries, p)
}
return b.processPreCommitBatch(cfg, bf, pcEntries, nv)
}
// register PreCommit, wait for batch message, return message CID
func (b *PreCommitBatcher) AddPreCommit(ctx context.Context, s SectorInfo, deposit abi.TokenAmount, in *miner.SectorPreCommitInfo) (res sealiface.PreCommitBatchRes, err error) {
ts, err := b.api.ChainHead(b.mctx)
if err != nil {
log.Errorf("getting chain head: %s", err)
return sealiface.PreCommitBatchRes{}, err
}
dealStartCutoff := getDealStartCutoff(s)
if dealStartCutoff <= ts.Height() {
return sealiface.PreCommitBatchRes{}, xerrors.Errorf("cutoff has already passed (cutoff %d <= curEpoch %d)", dealStartCutoff, ts.Height())
}
// Allocation cutoff is a soft deadline, so don't fail if we've passed it.
allocationCutoff := b.getAllocationCutoff(s)
var cutoffEpoch abi.ChainEpoch
if dealStartCutoff < allocationCutoff {
cutoffEpoch = dealStartCutoff
} else {
cutoffEpoch = allocationCutoff
}
sn := s.SectorNumber
b.lk.Lock()
b.cutoffs[sn] = time.Now().Add(time.Duration(cutoffEpoch-ts.Height()) * time.Duration(build.BlockDelaySecs) * time.Second)
b.todo[sn] = &preCommitEntry{
deposit: deposit,
pci: in,
}
sent := make(chan sealiface.PreCommitBatchRes, 1)
b.waiting[sn] = append(b.waiting[sn], sent)
select {
case b.notify <- struct{}{}:
default: // already have a pending notification, don't need more
}
b.lk.Unlock()
select {
case c := <-sent:
return c, nil
case <-ctx.Done():
return sealiface.PreCommitBatchRes{}, ctx.Err()
}
}
func (b *PreCommitBatcher) Flush(ctx context.Context) ([]sealiface.PreCommitBatchRes, error) {
resCh := make(chan []sealiface.PreCommitBatchRes, 1)
select {
case b.force <- resCh:
select {
case res := <-resCh:
return res, nil
case <-ctx.Done():
return nil, ctx.Err()
}
case <-ctx.Done():
return nil, ctx.Err()
}
}
func (b *PreCommitBatcher) Pending(ctx context.Context) ([]abi.SectorID, error) {
b.lk.Lock()
defer b.lk.Unlock()
mid, err := address.IDFromAddress(b.maddr)
if err != nil {
return nil, err
}
res := make([]abi.SectorID, 0)
for _, s := range b.todo {
res = append(res, abi.SectorID{
Miner: abi.ActorID(mid),
Number: s.pci.SectorNumber,
})
}
sort.Slice(res, func(i, j int) bool {
if res[i].Miner != res[j].Miner {
return res[i].Miner < res[j].Miner
}
return res[i].Number < res[j].Number
})
return res, nil
}
func (b *PreCommitBatcher) Stop(ctx context.Context) error {
close(b.stop)
select {
case <-b.stopped:
return nil
case <-ctx.Done():
return ctx.Err()
}
}
func getDealStartCutoff(si SectorInfo) abi.ChainEpoch {
cutoffEpoch := si.TicketEpoch + policy.MaxPreCommitRandomnessLookback
for _, p := range si.Pieces {
if !p.HasDealInfo() {
continue
}
startEpoch, err := p.StartEpoch()
if err != nil {
// almost definitely can't happen, but if it does there's less harm in
// just logging the error and moving on
log.Errorw("failed to get deal start epoch", "error", err)
continue
}
if startEpoch < cutoffEpoch {
cutoffEpoch = startEpoch
}
}
return cutoffEpoch
}
func (b *PreCommitBatcher) getAllocationCutoff(si SectorInfo) abi.ChainEpoch {
cutoff := si.TicketEpoch + policy.MaxPreCommitRandomnessLookback
for _, p := range si.Pieces {
if !p.HasDealInfo() {
continue
}
alloc, err := p.GetAllocation(b.mctx, b.api, types.EmptyTSK)
if err != nil {
log.Errorw("failed to get deal allocation", "error", err)
}
// alloc is nil if this is not a verified deal in nv17 or later
if alloc == nil {
continue
}
if alloc.Expiration < cutoff {
cutoff = alloc.Expiration
}
}
return cutoff
}