-
Notifications
You must be signed in to change notification settings - Fork 1.2k
/
miner_api.go
207 lines (169 loc) · 6.3 KB
/
miner_api.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
package dagstore
import (
"context"
"fmt"
"github.com/ipfs/go-cid"
"golang.org/x/xerrors"
"github.com/filecoin-project/dagstore/mount"
"github.com/filecoin-project/dagstore/throttle"
"github.com/filecoin-project/go-fil-markets/piecestore"
"github.com/filecoin-project/go-fil-markets/retrievalmarket"
"github.com/filecoin-project/go-fil-markets/shared"
"github.com/filecoin-project/go-state-types/abi"
)
//go:generate go run github.com/golang/mock/mockgen -destination=mocks/mock_lotus_accessor.go -package=mock_dagstore . MinerAPI
type MinerAPI interface {
FetchUnsealedPiece(ctx context.Context, pieceCid cid.Cid) (mount.Reader, error)
GetUnpaddedCARSize(ctx context.Context, pieceCid cid.Cid) (uint64, error)
IsUnsealed(ctx context.Context, pieceCid cid.Cid) (bool, error)
Start(ctx context.Context) error
}
type SectorAccessor interface {
retrievalmarket.SectorAccessor
UnsealSectorAt(ctx context.Context, sectorID abi.SectorNumber, pieceOffset abi.UnpaddedPieceSize, length abi.UnpaddedPieceSize) (mount.Reader, error)
}
type minerAPI struct {
pieceStore piecestore.PieceStore
sa SectorAccessor
throttle throttle.Throttler
unsealThrottle throttle.Throttler
readyMgr *shared.ReadyManager
}
var _ MinerAPI = (*minerAPI)(nil)
func NewMinerAPI(store piecestore.PieceStore, sa SectorAccessor, concurrency int, unsealConcurrency int) MinerAPI {
var unsealThrottle throttle.Throttler
if unsealConcurrency == 0 {
unsealThrottle = throttle.Noop()
} else {
unsealThrottle = throttle.Fixed(unsealConcurrency)
}
return &minerAPI{
pieceStore: store,
sa: sa,
throttle: throttle.Fixed(concurrency),
unsealThrottle: unsealThrottle,
readyMgr: shared.NewReadyManager(),
}
}
func (m *minerAPI) Start(_ context.Context) error {
return m.readyMgr.FireReady(nil)
}
func (m *minerAPI) IsUnsealed(ctx context.Context, pieceCid cid.Cid) (bool, error) {
err := m.readyMgr.AwaitReady()
if err != nil {
return false, xerrors.Errorf("failed while waiting for accessor to start: %w", err)
}
var pieceInfo piecestore.PieceInfo
err = m.throttle.Do(ctx, func(ctx context.Context) (err error) {
pieceInfo, err = m.pieceStore.GetPieceInfo(pieceCid)
return err
})
if err != nil {
return false, xerrors.Errorf("failed to fetch pieceInfo for piece %s: %w", pieceCid, err)
}
if len(pieceInfo.Deals) == 0 {
return false, xerrors.Errorf("no storage deals found for piece %s", pieceCid)
}
// check if we have an unsealed deal for the given piece in any of the unsealed sectors.
for _, deal := range pieceInfo.Deals {
deal := deal
var isUnsealed bool
// Throttle this path to avoid flooding the storage subsystem.
err := m.throttle.Do(ctx, func(ctx context.Context) (err error) {
isUnsealed, err = m.sa.IsUnsealed(ctx, deal.SectorID, deal.Offset.Unpadded(), deal.Length.Unpadded())
if err != nil {
return fmt.Errorf("failed to check if sector %d for deal %d was unsealed: %w", deal.SectorID, deal.DealID, err)
}
return nil
})
if err != nil {
log.Warnf("failed to check/retrieve unsealed sector: %s", err)
continue // move on to the next match.
}
if isUnsealed {
return true, nil
}
}
// we don't have an unsealed sector containing the piece
return false, nil
}
func (m *minerAPI) FetchUnsealedPiece(ctx context.Context, pieceCid cid.Cid) (mount.Reader, error) {
err := m.readyMgr.AwaitReady()
if err != nil {
return nil, err
}
// Throttle this path to avoid flooding the storage subsystem.
var pieceInfo piecestore.PieceInfo
err = m.throttle.Do(ctx, func(ctx context.Context) (err error) {
pieceInfo, err = m.pieceStore.GetPieceInfo(pieceCid)
return err
})
if err != nil {
return nil, xerrors.Errorf("failed to fetch pieceInfo for piece %s: %w", pieceCid, err)
}
if len(pieceInfo.Deals) == 0 {
return nil, xerrors.Errorf("no storage deals found for piece %s", pieceCid)
}
// prefer an unsealed sector containing the piece if one exists
for _, deal := range pieceInfo.Deals {
deal := deal
// Throttle this path to avoid flooding the storage subsystem.
var reader mount.Reader
err := m.throttle.Do(ctx, func(ctx context.Context) (err error) {
isUnsealed, err := m.sa.IsUnsealed(ctx, deal.SectorID, deal.Offset.Unpadded(), deal.Length.Unpadded())
if err != nil {
return fmt.Errorf("failed to check if sector %d for deal %d was unsealed: %w", deal.SectorID, deal.DealID, err)
}
if !isUnsealed {
return nil
}
// Because we know we have an unsealed copy, this UnsealSector call will actually not perform any unsealing.
reader, err = m.sa.UnsealSectorAt(ctx, deal.SectorID, deal.Offset.Unpadded(), deal.Length.Unpadded())
return err
})
if err != nil {
log.Warnf("failed to check/retrieve unsealed sector: %s", err)
continue // move on to the next match.
}
if reader != nil {
// we were able to obtain a reader for an already unsealed piece
return reader, nil
}
}
lastErr := xerrors.New("no sectors found to unseal from")
// if there is no unsealed sector containing the piece, just read the piece from the first sector we are able to unseal.
for _, deal := range pieceInfo.Deals {
// Note that if the deal data is not already unsealed, unsealing may
// block for a long time with the current PoRep
var reader mount.Reader
deal := deal
err := m.throttle.Do(ctx, func(ctx context.Context) (err error) {
// Because we know we have an unsealed copy, this UnsealSector call will actually not perform any unsealing.
reader, err = m.sa.UnsealSectorAt(ctx, deal.SectorID, deal.Offset.Unpadded(), deal.Length.Unpadded())
return err
})
if err != nil {
lastErr = xerrors.Errorf("failed to unseal deal %d: %w", deal.DealID, err)
log.Warn(lastErr.Error())
continue
}
// Successfully fetched the deal data so return a reader over the data
return reader, nil
}
return nil, lastErr
}
func (m *minerAPI) GetUnpaddedCARSize(ctx context.Context, pieceCid cid.Cid) (uint64, error) {
err := m.readyMgr.AwaitReady()
if err != nil {
return 0, err
}
pieceInfo, err := m.pieceStore.GetPieceInfo(pieceCid)
if err != nil {
return 0, xerrors.Errorf("failed to fetch pieceInfo for piece %s: %w", pieceCid, err)
}
if len(pieceInfo.Deals) == 0 {
return 0, xerrors.Errorf("no storage deals found for piece %s", pieceCid)
}
len := pieceInfo.Deals[0].Length
return uint64(len), nil
}