cmd/lotus-provider/tasks/tasks.go

@@ -3,6 +3,9 @@ package tasks
 
 import (
 	"context"
+	"github.com/filecoin-project/lotus/lib/lazy"
+	"github.com/filecoin-project/lotus/lib/must"
+	"github.com/filecoin-project/lotus/provider/lppiece"
 
 	logging "github.com/ipfs/go-log/v2"
 	"github.com/samber/lo"
@@ -64,6 +67,18 @@ func StartTasks(ctx context.Context, dependencies *deps.Deps) (*harmonytask.Task
 		}
 	}
 
+	slrLazy := lazy.MakeLazy(func() (*lpffi.SealCalls, error) {
+		return lpffi.NewSealCalls(stor, lstor, si), nil
+	})
+
+	{
+		// Piece handling
+		if cfg.Subsystems.EnableParkPiece {
+			parkPieceTask := lppiece.NewParkPieceTask(db, must.One(slrLazy.Val()), cfg.Subsystems.ParkPieceMaxTasks)
+			activeTasks = append(activeTasks, parkPieceTask)
+		}
+	}
+
 	hasAnySealingTask := cfg.Subsystems.EnableSealSDR ||
 		cfg.Subsystems.EnableSealSDRTrees ||
 		cfg.Subsystems.EnableSendPrecommitMsg ||
@@ -79,7 +94,7 @@ func StartTasks(ctx context.Context, dependencies *deps.Deps) (*harmonytask.Task
 			sp = lpseal.NewPoller(db, full)
 			go sp.RunPoller(ctx)
 
-			slr = lpffi.NewSealCalls(stor, lstor, si)
+			slr = must.One(slrLazy.Val())
 		}
 
 		// NOTE: Tasks with the LEAST priority are at the top

lib/harmony/harmonydb/sql/20240228-piece-park.sql

@@ -0,0 +1,30 @@
+create table parked_pieces (
+    id serial primary key,
+    created_at timestamp default current_timestamp,
+
+    piece_cid text not null,
+    piece_padded_size bigint not null,
+    piece_raw_size text not null,
+    
+    complete boolean not null default false
+);
+
+create table parked_piece_refs (
+    ref_id serial primary key,
+    piece_id int not null,
+
+    foreign key (piece_id) references parked_pieces(id) on delete cascade
+);
+
+create table park_piece_tasks (
+    task_id bigint not null
+      constraint park_piece_tasks_pk
+          primary key,
+
+    piece_ref_id int not null,
+
+    data_url text not null,
+    data_headers jsonb not null default '{}',
+    data_raw_size bigint not null,
+    data_delete_on_finalize bool not null
+);

node/config/types.go

@@ -112,6 +112,14 @@ type ProviderSubsystemsConfig struct {
 	EnableWinningPost   bool
 	WinningPostMaxTasks int
 
+	// EnableParkPiece enables the "piece parking" task to run on this node. This task is responsible for fetching
+	// pieces from the network and storing them in the storage subsystem until sectors are sealed. This task is
+	// only applicable when integrating with boost, and should be enabled on nodes which will hold deal data
+	// from boost until sectors containing the related pieces have the TreeD/TreeR constructed.
+	// Note that future Curio implementations will have a separate task type for fetching pieces from the internet.
+	EnableParkPiece   bool
+	ParkPieceMaxTasks int
+
 	// EnableSealSDR enables SDR tasks to run. SDR is the long sequential computation
 	// creating 11 layer files in sector cache directory.
 	//

provider/lpffi/piece_funcs.go

@@ -0,0 +1,65 @@
+package lpffi
+
+import (
+	"context"
+	"github.com/filecoin-project/lotus/storage/sealer/storiface"
+	"golang.org/x/xerrors"
+	"io"
+	"os"
+	"time"
+)
+
+func (sb *SealCalls) WritePiece(ctx context.Context, pieceID storiface.PieceNumber, size int64, data io.Reader) error {
+	// todo: config(?): allow setting PathStorage for this
+	// todo storage reservations
+	paths, done, err := sb.sectors.AcquireSector(ctx, nil, pieceID.Ref(), storiface.FTNone, storiface.FTPiece, storiface.PathSealing)
+	if err != nil {
+		return err
+	}
+	defer done()
+
+	dest := paths.Piece
+	tempDest := dest + ".tmp"
+
+	destFile, err := os.OpenFile(tempDest, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
+	if err != nil {
+		return xerrors.Errorf("creating temp piece file '%s': %w", tempDest, err)
+	}
+
+	removeTemp := true
+	defer func() {
+		if removeTemp {
+			rerr := os.Remove(tempDest)
+			if rerr != nil {
+				log.Errorf("removing temp file: %+v", rerr)
+			}
+		}
+	}()
+
+	copyStart := time.Now()
+
+	n, err := io.CopyBuffer(destFile, io.LimitReader(data, size), make([]byte, 8<<20))
+	if err != nil {
+		_ = destFile.Close()
+		return xerrors.Errorf("copying piece data: %w", err)
+	}
+
+	if err := destFile.Close(); err != nil {
+		return xerrors.Errorf("closing temp piece file: %w", err)
+	}
+
+	if n != size {
+		return xerrors.Errorf("short write: %d", n)
+	}
+
+	copyEnd := time.Now()
+
+	log.Infow("wrote parked piece", "piece", pieceID, "size", size, "duration", copyEnd.Sub(copyStart), "dest", dest, "MiB/s", float64(size)/(1<<20)/copyEnd.Sub(copyStart).Seconds())
+
+	if err := os.Rename(tempDest, dest); err != nil {
+		return xerrors.Errorf("rename temp piece to dest %s -> %s: %w", tempDest, dest, err)
+	}
+
+	removeTemp = false
+	return nil
+}

provider/lppiece/task_park_piece.go

@@ -0,0 +1,162 @@
+package lppiece
+
+import (
+	"context"
+	"encoding/json"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/lotus/lib/harmony/harmonydb"
+	"github.com/filecoin-project/lotus/lib/harmony/harmonytask"
+	"github.com/filecoin-project/lotus/lib/harmony/resources"
+	"github.com/filecoin-project/lotus/lib/promise"
+	"github.com/filecoin-project/lotus/provider/lpffi"
+	"github.com/filecoin-project/lotus/provider/lpseal"
+	"github.com/filecoin-project/lotus/storage/sealer/storiface"
+	"github.com/ipfs/go-cid"
+	logging "github.com/ipfs/go-log/v2"
+	"golang.org/x/xerrors"
+	"net/http"
+	"time"
+)
+
+var log = logging.Logger("lppiece")
+
+// ParkPieceTask gets a piece from some origin, and parks it in storage
+// Pieces are always f00, piece ID is mapped to pieceCID in the DB
+type ParkPieceTask struct {
+	db *harmonydb.DB
+	sc *lpffi.SealCalls
+
+	TF promise.Promise[harmonytask.AddTaskFunc]
+
+	max int
+}
+
+func NewParkPieceTask(db *harmonydb.DB, sc *lpffi.SealCalls, max int) *ParkPieceTask {
+	return &ParkPieceTask{
+		db: db,
+		sc: sc,
+
+		max: max,
+	}
+}
+
+func (p *ParkPieceTask) PullPiece(ctx context.Context, pieceCID cid.Cid, rawSize int64, paddedSize abi.PaddedPieceSize, dataUrl string, headers http.Header) error {
+	p.TF.Val(ctx)(func(id harmonytask.TaskID, tx *harmonydb.Tx) (shouldCommit bool, err error) {
+		var pieceID int
+		err = tx.QueryRow(`INSERT INTO parked_pieces (piece_cid, piece_padded_size, piece_raw_size) VALUES ($1, $2, $3) RETURNING id`, pieceCID.String(), int64(paddedSize), rawSize).Scan(&pieceID)
+		if err != nil {
+			return false, xerrors.Errorf("inserting parked piece: %w", err)
+		}
+
+		var refID int
+		err = tx.QueryRow(`INSERT INTO parked_piece_refs (piece_id) VALUES ($1) RETURNING ref_id`, pieceID).Scan(&refID)
+		if err != nil {
+			return false, xerrors.Errorf("inserting parked piece ref: %w", err)
+		}
+
+		headersJson, err := json.Marshal(headers)
+		if err != nil {
+			return false, xerrors.Errorf("marshaling headers: %w", err)
+		}
+
+		_, err = tx.Exec(`INSERT INTO park_piece_tasks (task_id, piece_ref_id, data_url, data_headers, data_raw_size, data_delete_on_finalize)
+			VALUES ($1, $2, $3, $4, $5, $6)`, id, refID, dataUrl, headersJson, rawSize, false)
+		if err != nil {
+			return false, xerrors.Errorf("inserting park piece task: %w", err)
+		}
+
+		return true, nil
+	})
+
+	return nil
+}
+
+func (p *ParkPieceTask) Do(taskID harmonytask.TaskID, stillOwned func() bool) (done bool, err error) {
+	ctx := context.Background()
+
+	var taskData []struct {
+		PieceID        int       `db:"id"`
+		PieceCreatedAt time.Time `db:"created_at"`
+		PieceCID       string    `db:"piece_cid"`
+		Complete       bool      `db:"complete"`
+
+		DataURL              string `db:"data_url"`
+		DataHeaders          string `db:"data_headers"`
+		DataRawSize          int64  `db:"data_raw_size"`
+		DataDeleteOnFinalize bool   `db:"data_delete_on_finalize"`
+	}
+
+	err = p.db.Select(ctx, &taskData, `
+		select
+			pp.id,
+			pp.created_at,
+			pp.piece_cid,
+			pp.complete,
+			ppt.data_url,
+			ppt.data_headers,
+			ppt.data_raw_size,
+			ppt.data_delete_on_finalize
+		from park_piece_tasks ppt
+		join parked_piece_refs ppr on ppt.piece_ref_id = ppr.ref_id
+		join parked_pieces pp on ppr.piece_id = pp.id
+		where ppt.task_id = $1
+	`, taskID)
+	if err != nil {
+		return false, err
+	}
+
+	if len(taskData) != 1 {
+		return false, xerrors.Errorf("expected 1 task, got %d", len(taskData))
+	}
+
+	if taskData[0].Complete {
+		log.Warnw("park piece task already complete", "task_id", taskID, "piece_cid", taskData[0].PieceCID)
+		return true, nil
+	}
+
+	upr := &lpseal.UrlPieceReader{
+		Url:     taskData[0].DataURL,
+		RawSize: taskData[0].DataRawSize,
+	}
+	defer func() {
+		_ = upr.Close()
+	}()
+
+	pnum := storiface.PieceNumber(taskData[0].PieceID)
+
+	if err := p.sc.WritePiece(ctx, pnum, taskData[0].DataRawSize, upr); err != nil {
+		return false, xerrors.Errorf("write piece: %w", err)
+	}
+
+	_, err = p.db.Exec(ctx, `update parked_pieces set complete = true where id = $1`, taskData[0].PieceID)
+	if err != nil {
+		return false, xerrors.Errorf("marking piece as complete: %w", err)
+	}
+
+	return true, nil
+}
+
+func (p *ParkPieceTask) CanAccept(ids []harmonytask.TaskID, engine *harmonytask.TaskEngine) (*harmonytask.TaskID, error) {
+	id := ids[0]
+	return &id, nil
+}
+
+func (p *ParkPieceTask) TypeDetails() harmonytask.TaskTypeDetails {
+	return harmonytask.TaskTypeDetails{
+		Max:  p.max,
+		Name: "ParkPiece",
+		Cost: resources.Resources{
+			Cpu:     1,
+			Gpu:     0,
+			Ram:     64 << 20,
+			Storage: nil, // TODO
+		},
+		MaxFailures: 10,
+	}
+}
+
+func (p *ParkPieceTask) Adder(taskFunc harmonytask.AddTaskFunc) {
+	p.TF.Set(taskFunc)
+}
+
+var _ harmonytask.TaskInterface = &ParkPieceTask{}

provider/lpseal/task_trees.go

@@ -200,6 +200,7 @@ type UrlPieceReader struct {
 	RawSize int64 // the exact number of bytes read, if we read more or less that's an error
 
 	readSoFar int64
+	closed    bool
 	active    io.ReadCloser // auto-closed on EOF
 }
 
@@ -239,6 +240,7 @@ func (u *UrlPieceReader) Read(p []byte) (n int, err error) {
 	// If EOF is reached, close the reader
 	if err == io.EOF {
 		cerr := u.active.Close()
+		u.closed = true
 		if cerr != nil {
 			log.Errorf("error closing http piece reader: %s", cerr)
 		}
@@ -253,4 +255,13 @@ func (u *UrlPieceReader) Read(p []byte) (n int, err error) {
 	return n, err
 }
 
+func (u *UrlPieceReader) Close() error {
+	if !u.closed {
+		u.closed = true
+		return u.active.Close()
+	}
+
+	return nil
+}
+
 var _ harmonytask.TaskInterface = &TreesTask{}

storage/paths/http_handler.go

@@ -9,12 +9,10 @@ import (
 	"strconv"
 	"time"
 
+	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/gorilla/mux"
 	"github.com/ipfs/go-cid"
 	logging "github.com/ipfs/go-log/v2"
-	"golang.org/x/xerrors"
-
-	"github.com/filecoin-project/go-state-types/abi"
 
 	"github.com/filecoin-project/lotus/storage/sealer/partialfile"
 	"github.com/filecoin-project/lotus/storage/sealer/storiface"
@@ -340,18 +338,5 @@ func (handler *FetchHandler) generatePoRepVanillaProof(w http.ResponseWriter, r
 }
 
 func FileTypeFromString(t string) (storiface.SectorFileType, error) {
-	switch t {
-	case storiface.FTUnsealed.String():
-		return storiface.FTUnsealed, nil
-	case storiface.FTSealed.String():
-		return storiface.FTSealed, nil
-	case storiface.FTCache.String():
-		return storiface.FTCache, nil
-	case storiface.FTUpdate.String():
-		return storiface.FTUpdate, nil
-	case storiface.FTUpdateCache.String():
-		return storiface.FTUpdateCache, nil
-	default:
-		return 0, xerrors.Errorf("unknown sector file type: '%s'", t)
-	}
+	return storiface.TypeFromString(t)
 }

storage/sealer/ffiwrapper/basicfs/fs.go

@@ -39,6 +39,9 @@ func (b *Provider) AcquireSector(ctx context.Context, id storiface.SectorRef, ex
 	if err := os.Mkdir(filepath.Join(b.Root, storiface.FTUpdateCache.String()), 0755); err != nil && !os.IsExist(err) { // nolint
 		return storiface.SectorPaths{}, nil, err
 	}
+	if err := os.Mkdir(filepath.Join(b.Root, storiface.FTPiece.String()), 0755); err != nil && !os.IsExist(err) { // nolint
+		return storiface.SectorPaths{}, nil, err
+	}
 
 	done := func() {}
 

storage/sealer/storiface/filetype.go

@@ -9,16 +9,22 @@ import (
 )
 
 const (
+	// "regular" sectors
 	FTUnsealed SectorFileType = 1 << iota
 	FTSealed
 	FTCache
+
+	// snap
 	FTUpdate
 	FTUpdateCache
 
+	// Piece Park
+	FTPiece
+
 	FileTypes = iota
 )
 
-var PathTypes = []SectorFileType{FTUnsealed, FTSealed, FTCache, FTUpdate, FTUpdateCache}
+var PathTypes = []SectorFileType{FTUnsealed, FTSealed, FTCache, FTUpdate, FTUpdateCache, FTPiece}
 
 const (
 	FTNone SectorFileType = 0
@@ -39,6 +45,7 @@ var FSOverheadSeal = map[SectorFileType]int{ // 10x overheads
 	FTUpdate:      FSOverheadDen,
 	FTUpdateCache: FSOverheadDen*2 + 1,
 	FTCache:       141, // 11 layers + D(2x ssize) + C + R'
+	FTPiece:       FSOverheadDen,
 }
 
 // sector size * disk / fs overhead.  FSOverheadDen is like the unit of sector size
@@ -49,6 +56,7 @@ var FsOverheadFinalized = map[SectorFileType]int{
 	FTUpdate:      FSOverheadDen,
 	FTUpdateCache: 1,
 	FTCache:       1,
+	FTPiece:       FSOverheadDen,
 }
 
 type SectorFileType int
@@ -65,6 +73,8 @@ func TypeFromString(s string) (SectorFileType, error) {
 		return FTUpdate, nil
 	case "update-cache":
 		return FTUpdateCache, nil
+	case "piece":
+		return FTPiece, nil
 	default:
 		return 0, xerrors.Errorf("unknown sector file type '%s'", s)
 	}
@@ -82,6 +92,8 @@ func (t SectorFileType) String() string {
 		return "update"
 	case FTUpdateCache:
 		return "update-cache"
+	case FTPiece:
+		return "piece"
 	default:
 		return fmt.Sprintf("<unknown %d %v>", t, (t & ((1 << FileTypes) - 1)).Strings())
 	}
@@ -206,6 +218,7 @@ type SectorPaths struct {
 	Cache       string
 	Update      string
 	UpdateCache string
+	Piece       string
 }
 
 func ParseSectorID(baseName string) (abi.SectorID, error) {
@@ -242,6 +255,8 @@ func PathByType(sps SectorPaths, fileType SectorFileType) string {
 		return sps.Update
 	case FTUpdateCache:
 		return sps.UpdateCache
+	case FTPiece:
+		return sps.Piece
 	}
 
 	panic("requested unknown path type")
@@ -259,5 +274,7 @@ func SetPathByType(sps *SectorPaths, fileType SectorFileType, p string) {
 		sps.Update = p
 	case FTUpdateCache:
 		sps.UpdateCache = p
+	case FTPiece:
+		sps.Piece = p
 	}
 }

storage/sealer/storiface/storage.go

@@ -20,6 +20,17 @@ type SectorRef struct {
 
 var NoSectorRef = SectorRef{}
 
+// PieceNumber is a reference to a piece in the storage system; mapping between
+// pieces in the storage system and piece CIDs is maintained by the storage index
+type PieceNumber uint64
+
+func (pn PieceNumber) Ref() SectorRef {
+	return SectorRef{
+		ID:        abi.SectorID{Miner: 0, Number: abi.SectorNumber(pn)},
+		ProofType: abi.RegisteredSealProof_StackedDrg64GiBV1, // This only cares about TreeD which is the same for all sizes
+	}
+}
+
 type ProverPoSt interface {
 	GenerateWinningPoSt(ctx context.Context, minerID abi.ActorID, sectorInfo []proof.ExtendedSectorInfo, randomness abi.PoStRandomness) ([]proof.PoStProof, error)
 	GenerateWindowPoSt(ctx context.Context, minerID abi.ActorID, ppt abi.RegisteredPoStProof, sectorInfo []proof.ExtendedSectorInfo, randomness abi.PoStRandomness) (proof []proof.PoStProof, skipped []abi.SectorID, err error)