135 lines
3.5 KiB
Go
135 lines
3.5 KiB
Go
package sealer
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import (
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"context"
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"crypto/rand"
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"fmt"
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"sync"
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"time"
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"golang.org/x/xerrors"
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ffi "github.com/filecoin-project/filecoin-ffi"
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"github.com/filecoin-project/go-state-types/abi"
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"github.com/filecoin-project/specs-storage/storage"
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"github.com/filecoin-project/lotus/storage/sealer/storiface"
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)
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var PostCheckTimeout = 160 * time.Second
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// FaultTracker TODO: Track things more actively
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type FaultTracker interface {
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CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, sectors []storage.SectorRef, rg storiface.RGetter) (map[abi.SectorID]string, error)
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}
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// CheckProvable returns unprovable sectors
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func (m *Manager) CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, sectors []storage.SectorRef, rg storiface.RGetter) (map[abi.SectorID]string, error) {
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ctx, cancel := context.WithCancel(ctx)
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defer cancel()
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if rg == nil {
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return nil, xerrors.Errorf("rg is nil")
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}
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var bad = make(map[abi.SectorID]string)
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var badLk sync.Mutex
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var postRand abi.PoStRandomness = make([]byte, abi.RandomnessLength)
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_, _ = rand.Read(postRand)
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postRand[31] &= 0x3f
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limit := m.parallelCheckLimit
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if limit <= 0 {
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limit = len(sectors)
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}
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throttle := make(chan struct{}, limit)
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addBad := func(s abi.SectorID, reason string) {
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badLk.Lock()
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bad[s] = reason
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badLk.Unlock()
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}
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var wg sync.WaitGroup
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wg.Add(len(sectors))
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for _, sector := range sectors {
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select {
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case throttle <- struct{}{}:
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case <-ctx.Done():
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return nil, ctx.Err()
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}
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go func(sector storage.SectorRef) {
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defer wg.Done()
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defer func() {
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<-throttle
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}()
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ctx, cancel := context.WithCancel(ctx)
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defer cancel()
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commr, update, err := rg(ctx, sector.ID)
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if err != nil {
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log.Warnw("CheckProvable Sector FAULT: getting commR", "sector", sector, "sealed", "err", err)
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addBad(sector.ID, fmt.Sprintf("getting commR: %s", err))
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return
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}
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toLock := storiface.FTSealed | storiface.FTCache
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if update {
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toLock = storiface.FTUpdate | storiface.FTUpdateCache
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}
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locked, err := m.index.StorageTryLock(ctx, sector.ID, toLock, storiface.FTNone)
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if err != nil {
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addBad(sector.ID, fmt.Sprintf("tryLock error: %s", err))
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return
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}
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if !locked {
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log.Warnw("CheckProvable Sector FAULT: can't acquire read lock", "sector", sector)
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addBad(sector.ID, fmt.Sprint("can't acquire read lock"))
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return
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}
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wpp, err := sector.ProofType.RegisteredWindowPoStProof()
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if err != nil {
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addBad(sector.ID, fmt.Sprint("can't get proof type"))
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return
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}
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ch, err := ffi.GeneratePoStFallbackSectorChallenges(wpp, sector.ID.Miner, postRand, []abi.SectorNumber{
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sector.ID.Number,
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})
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if err != nil {
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log.Warnw("CheckProvable Sector FAULT: generating challenges", "sector", sector, "err", err)
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addBad(sector.ID, fmt.Sprintf("generating fallback challenges: %s", err))
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return
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}
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vctx, cancel2 := context.WithTimeout(ctx, PostCheckTimeout)
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defer cancel2()
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_, err = m.storage.GenerateSingleVanillaProof(vctx, sector.ID.Miner, storiface.PostSectorChallenge{
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SealProof: sector.ProofType,
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SectorNumber: sector.ID.Number,
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SealedCID: commr,
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Challenge: ch.Challenges[sector.ID.Number],
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Update: update,
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}, wpp)
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if err != nil {
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log.Warnw("CheckProvable Sector FAULT: generating vanilla proof", "sector", sector, "err", err)
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addBad(sector.ID, fmt.Sprintf("generating vanilla proof: %s", err))
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return
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}
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}(sector)
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}
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wg.Wait()
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return bad, nil
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}
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var _ FaultTracker = &Manager{}
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