452 lines
10 KiB
Go
452 lines
10 KiB
Go
package stores
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import (
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"context"
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"errors"
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"net/url"
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gopath "path"
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"sort"
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"sync"
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"time"
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"golang.org/x/xerrors"
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"github.com/filecoin-project/go-state-types/abi"
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"github.com/filecoin-project/go-state-types/big"
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"github.com/filecoin-project/lotus/extern/sector-storage/fsutil"
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"github.com/filecoin-project/lotus/extern/sector-storage/storiface"
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)
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var HeartbeatInterval = 10 * time.Second
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var SkippedHeartbeatThresh = HeartbeatInterval * 5
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// ID identifies sector storage by UUID. One sector storage should map to one
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// filesystem, local or networked / shared by multiple machines
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type ID string
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type StorageInfo struct {
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ID ID
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URLs []string // TODO: Support non-http transports
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Weight uint64
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CanSeal bool
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CanStore bool
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}
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type HealthReport struct {
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Stat fsutil.FsStat
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Err string
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}
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type SectorStorageInfo struct {
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ID ID
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URLs []string // TODO: Support non-http transports
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Weight uint64
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CanSeal bool
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CanStore bool
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Primary bool
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}
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type SectorIndex interface { // part of storage-miner api
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StorageAttach(context.Context, StorageInfo, fsutil.FsStat) error
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StorageInfo(context.Context, ID) (StorageInfo, error)
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StorageReportHealth(context.Context, ID, HealthReport) error
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StorageDeclareSector(ctx context.Context, storageID ID, s abi.SectorID, ft storiface.SectorFileType, primary bool) error
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StorageDropSector(ctx context.Context, storageID ID, s abi.SectorID, ft storiface.SectorFileType) error
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StorageFindSector(ctx context.Context, sector abi.SectorID, ft storiface.SectorFileType, ssize abi.SectorSize, allowFetch bool) ([]SectorStorageInfo, error)
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StorageBestAlloc(ctx context.Context, allocate storiface.SectorFileType, ssize abi.SectorSize, pathType storiface.PathType) ([]StorageInfo, error)
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// atomically acquire locks on all sector file types. close ctx to unlock
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StorageLock(ctx context.Context, sector abi.SectorID, read storiface.SectorFileType, write storiface.SectorFileType) error
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StorageTryLock(ctx context.Context, sector abi.SectorID, read storiface.SectorFileType, write storiface.SectorFileType) (bool, error)
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}
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type Decl struct {
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abi.SectorID
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storiface.SectorFileType
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}
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type declMeta struct {
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storage ID
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primary bool
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}
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type storageEntry struct {
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info *StorageInfo
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fsi fsutil.FsStat
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lastHeartbeat time.Time
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heartbeatErr error
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}
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type Index struct {
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*indexLocks
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lk sync.RWMutex
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sectors map[Decl][]*declMeta
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stores map[ID]*storageEntry
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}
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func NewIndex() *Index {
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return &Index{
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indexLocks: &indexLocks{
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locks: map[abi.SectorID]*sectorLock{},
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},
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sectors: map[Decl][]*declMeta{},
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stores: map[ID]*storageEntry{},
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}
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}
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func (i *Index) StorageList(ctx context.Context) (map[ID][]Decl, error) {
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i.lk.RLock()
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defer i.lk.RUnlock()
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byID := map[ID]map[abi.SectorID]storiface.SectorFileType{}
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for id := range i.stores {
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byID[id] = map[abi.SectorID]storiface.SectorFileType{}
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}
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for decl, ids := range i.sectors {
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for _, id := range ids {
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byID[id.storage][decl.SectorID] |= decl.SectorFileType
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}
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}
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out := map[ID][]Decl{}
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for id, m := range byID {
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out[id] = []Decl{}
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for sectorID, fileType := range m {
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out[id] = append(out[id], Decl{
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SectorID: sectorID,
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SectorFileType: fileType,
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})
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}
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}
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return out, nil
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}
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func (i *Index) StorageAttach(ctx context.Context, si StorageInfo, st fsutil.FsStat) error {
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i.lk.Lock()
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defer i.lk.Unlock()
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log.Infof("New sector storage: %s", si.ID)
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if _, ok := i.stores[si.ID]; ok {
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for _, u := range si.URLs {
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if _, err := url.Parse(u); err != nil {
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return xerrors.Errorf("failed to parse url %s: %w", si.URLs, err)
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}
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}
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uloop:
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for _, u := range si.URLs {
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for _, l := range i.stores[si.ID].info.URLs {
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if u == l {
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continue uloop
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}
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}
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i.stores[si.ID].info.URLs = append(i.stores[si.ID].info.URLs, u)
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}
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i.stores[si.ID].info.Weight = si.Weight
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i.stores[si.ID].info.CanSeal = si.CanSeal
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i.stores[si.ID].info.CanStore = si.CanStore
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return nil
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}
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i.stores[si.ID] = &storageEntry{
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info: &si,
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fsi: st,
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lastHeartbeat: time.Now(),
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}
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return nil
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}
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func (i *Index) StorageReportHealth(ctx context.Context, id ID, report HealthReport) error {
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i.lk.Lock()
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defer i.lk.Unlock()
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ent, ok := i.stores[id]
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if !ok {
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return xerrors.Errorf("health report for unknown storage: %s", id)
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}
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ent.fsi = report.Stat
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if report.Err != "" {
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ent.heartbeatErr = errors.New(report.Err)
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}
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ent.lastHeartbeat = time.Now()
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return nil
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}
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func (i *Index) StorageDeclareSector(ctx context.Context, storageID ID, s abi.SectorID, ft storiface.SectorFileType, primary bool) error {
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i.lk.Lock()
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defer i.lk.Unlock()
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loop:
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for _, fileType := range storiface.PathTypes {
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if fileType&ft == 0 {
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continue
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}
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d := Decl{s, fileType}
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for _, sid := range i.sectors[d] {
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if sid.storage == storageID {
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if !sid.primary && primary {
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sid.primary = true
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} else {
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log.Warnf("sector %v redeclared in %s", s, storageID)
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}
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continue loop
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}
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}
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i.sectors[d] = append(i.sectors[d], &declMeta{
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storage: storageID,
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primary: primary,
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})
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}
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return nil
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}
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func (i *Index) StorageDropSector(ctx context.Context, storageID ID, s abi.SectorID, ft storiface.SectorFileType) error {
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i.lk.Lock()
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defer i.lk.Unlock()
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for _, fileType := range storiface.PathTypes {
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if fileType&ft == 0 {
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continue
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}
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d := Decl{s, fileType}
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if len(i.sectors[d]) == 0 {
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continue
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}
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rewritten := make([]*declMeta, 0, len(i.sectors[d])-1)
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for _, sid := range i.sectors[d] {
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if sid.storage == storageID {
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continue
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}
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rewritten = append(rewritten, sid)
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}
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if len(rewritten) == 0 {
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delete(i.sectors, d)
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continue
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}
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i.sectors[d] = rewritten
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}
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return nil
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}
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func (i *Index) StorageFindSector(ctx context.Context, s abi.SectorID, ft storiface.SectorFileType, ssize abi.SectorSize, allowFetch bool) ([]SectorStorageInfo, error) {
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i.lk.RLock()
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defer i.lk.RUnlock()
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storageIDs := map[ID]uint64{}
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isprimary := map[ID]bool{}
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for _, pathType := range storiface.PathTypes {
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if ft&pathType == 0 {
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continue
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}
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for _, id := range i.sectors[Decl{s, pathType}] {
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storageIDs[id.storage]++
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isprimary[id.storage] = isprimary[id.storage] || id.primary
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}
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}
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out := make([]SectorStorageInfo, 0, len(storageIDs))
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for id, n := range storageIDs {
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st, ok := i.stores[id]
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if !ok {
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log.Warnf("storage %s is not present in sector index (referenced by sector %v)", id, s)
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continue
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}
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urls := make([]string, len(st.info.URLs))
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for k, u := range st.info.URLs {
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rl, err := url.Parse(u)
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if err != nil {
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return nil, xerrors.Errorf("failed to parse url: %w", err)
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}
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rl.Path = gopath.Join(rl.Path, ft.String(), storiface.SectorName(s))
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urls[k] = rl.String()
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}
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out = append(out, SectorStorageInfo{
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ID: id,
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URLs: urls,
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Weight: st.info.Weight * n, // storage with more sector types is better
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CanSeal: st.info.CanSeal,
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CanStore: st.info.CanStore,
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Primary: isprimary[id],
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})
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}
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if allowFetch {
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spaceReq, err := ft.SealSpaceUse(ssize)
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if err != nil {
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return nil, xerrors.Errorf("estimating required space: %w", err)
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}
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for id, st := range i.stores {
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if !st.info.CanSeal {
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continue
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}
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if spaceReq > uint64(st.fsi.Available) {
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log.Debugf("not selecting on %s, out of space (available: %d, need: %d)", st.info.ID, st.fsi.Available, spaceReq)
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continue
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}
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if time.Since(st.lastHeartbeat) > SkippedHeartbeatThresh {
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log.Debugf("not selecting on %s, didn't receive heartbeats for %s", st.info.ID, time.Since(st.lastHeartbeat))
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continue
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}
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if st.heartbeatErr != nil {
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log.Debugf("not selecting on %s, heartbeat error: %s", st.info.ID, st.heartbeatErr)
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continue
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}
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if _, ok := storageIDs[id]; ok {
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continue
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}
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urls := make([]string, len(st.info.URLs))
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for k, u := range st.info.URLs {
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rl, err := url.Parse(u)
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if err != nil {
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return nil, xerrors.Errorf("failed to parse url: %w", err)
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}
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rl.Path = gopath.Join(rl.Path, ft.String(), storiface.SectorName(s))
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urls[k] = rl.String()
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}
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out = append(out, SectorStorageInfo{
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ID: id,
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URLs: urls,
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Weight: st.info.Weight * 0, // TODO: something better than just '0'
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CanSeal: st.info.CanSeal,
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CanStore: st.info.CanStore,
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Primary: false,
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})
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}
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}
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return out, nil
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}
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func (i *Index) StorageInfo(ctx context.Context, id ID) (StorageInfo, error) {
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i.lk.RLock()
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defer i.lk.RUnlock()
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si, found := i.stores[id]
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if !found {
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return StorageInfo{}, xerrors.Errorf("sector store not found")
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}
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return *si.info, nil
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}
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func (i *Index) StorageBestAlloc(ctx context.Context, allocate storiface.SectorFileType, ssize abi.SectorSize, pathType storiface.PathType) ([]StorageInfo, error) {
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i.lk.RLock()
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defer i.lk.RUnlock()
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var candidates []storageEntry
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spaceReq, err := allocate.SealSpaceUse(ssize)
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if err != nil {
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return nil, xerrors.Errorf("estimating required space: %w", err)
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}
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for _, p := range i.stores {
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if (pathType == storiface.PathSealing) && !p.info.CanSeal {
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continue
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}
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if (pathType == storiface.PathStorage) && !p.info.CanStore {
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continue
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}
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if spaceReq > uint64(p.fsi.Available) {
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log.Debugf("not allocating on %s, out of space (available: %d, need: %d)", p.info.ID, p.fsi.Available, spaceReq)
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continue
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}
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if time.Since(p.lastHeartbeat) > SkippedHeartbeatThresh {
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log.Debugf("not allocating on %s, didn't receive heartbeats for %s", p.info.ID, time.Since(p.lastHeartbeat))
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continue
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}
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if p.heartbeatErr != nil {
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log.Debugf("not allocating on %s, heartbeat error: %s", p.info.ID, p.heartbeatErr)
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continue
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}
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candidates = append(candidates, *p)
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}
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if len(candidates) == 0 {
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return nil, xerrors.New("no good path found")
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}
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sort.Slice(candidates, func(i, j int) bool {
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iw := big.Mul(big.NewInt(candidates[i].fsi.Available), big.NewInt(int64(candidates[i].info.Weight)))
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jw := big.Mul(big.NewInt(candidates[j].fsi.Available), big.NewInt(int64(candidates[j].info.Weight)))
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return iw.GreaterThan(jw)
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})
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out := make([]StorageInfo, len(candidates))
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for i, candidate := range candidates {
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out[i] = *candidate.info
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}
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return out, nil
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}
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func (i *Index) FindSector(id abi.SectorID, typ storiface.SectorFileType) ([]ID, error) {
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i.lk.RLock()
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defer i.lk.RUnlock()
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f, ok := i.sectors[Decl{
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SectorID: id,
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SectorFileType: typ,
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}]
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if !ok {
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return nil, nil
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}
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out := make([]ID, 0, len(f))
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for _, meta := range f {
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out = append(out, meta.storage)
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}
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return out, nil
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}
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var _ SectorIndex = &Index{}
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