Configurable CC Sector Expiration

extern/storage-sealing/precommit_policy.go

@@ -3,11 +3,13 @@ package sealing
 import (
 	"context"
 
-	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
-
-	"github.com/filecoin-project/go-state-types/network"
+	"golang.org/x/xerrors"
 
 	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/network"
+	"github.com/filecoin-project/lotus/chain/actors/builtin"
+	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
+	"github.com/filecoin-project/lotus/chain/actors/policy"
 )
 
 type PreCommitPolicy interface {
@@ -34,21 +36,23 @@ type Chain interface {
 // If we're in Mode 2: The pre-commit expiration epoch will be set to the
 // current epoch + the provided default duration.
 type BasicPreCommitPolicy struct {
-	api Chain
+	api              Chain
+	getSealingConfig GetSealingConfigFunc
 
 	provingBoundary abi.ChainEpoch
-	duration        abi.ChainEpoch
+	provingBuffer   abi.ChainEpoch
 }
 
 // NewBasicPreCommitPolicy produces a BasicPreCommitPolicy.
 //
 // The provided duration is used as the default sector expiry when the sector
 // contains no deals. The proving boundary is used to adjust/align the sector's expiration.
-func NewBasicPreCommitPolicy(api Chain, duration abi.ChainEpoch, provingBoundary abi.ChainEpoch) BasicPreCommitPolicy {
+func NewBasicPreCommitPolicy(api Chain, cfgGetter GetSealingConfigFunc, provingBoundary abi.ChainEpoch, provingBuffer abi.ChainEpoch) BasicPreCommitPolicy {
 	return BasicPreCommitPolicy{
-		api:             api,
-		provingBoundary: provingBoundary,
-		duration:        duration,
+		api:              api,
+		getSealingConfig: cfgGetter,
+		provingBoundary:  provingBoundary,
+		provingBuffer:    provingBuffer,
 	}
 }
 
@@ -79,11 +83,41 @@ func (p *BasicPreCommitPolicy) Expiration(ctx context.Context, ps ...Piece) (abi
 	}
 
 	if end == nil {
-		tmp := epoch + p.duration
+		// no deal pieces, get expiration for committed capacity sector
+		expirationDuration, err := p.getCCSectorLifetime()
+		if err != nil {
+			return 0, err
+		}
+
+		tmp := epoch + expirationDuration
 		end = &tmp
 	}
 
 	*end += miner.WPoStProvingPeriod - (*end % miner.WPoStProvingPeriod) + p.provingBoundary - 1
 
 	return *end, nil
 }
+
+func (p *BasicPreCommitPolicy) getCCSectorLifetime() (abi.ChainEpoch, error) {
+	c, err := p.getSealingConfig()
+	if err != nil {
+		return 0, xerrors.Errorf("sealing config load error: %w", err)
+	}
+
+	var ccLifetimeEpochs = abi.ChainEpoch(uint64(c.CommittedCapacitySectorLifetime.Seconds()) / builtin.EpochDurationSeconds)
+	// if zero value in config, assume maximum sector extension
+	if ccLifetimeEpochs == 0 {
+		ccLifetimeEpochs = policy.GetMaxSectorExpirationExtension()
+	}
+
+	if minExpiration := abi.ChainEpoch(miner.MinSectorExpiration); ccLifetimeEpochs < minExpiration {
+		log.Warnf("value for CommittedCapacitySectorLiftime is too short, using default minimum (%d epochs)", minExpiration)
+		return minExpiration, nil
+	}
+	if maxExpiration := policy.GetMaxSectorExpirationExtension(); ccLifetimeEpochs > maxExpiration {
+		log.Warnf("value for CommittedCapacitySectorLiftime is too long, using default maximum (%d epochs)", maxExpiration)
+		return maxExpiration, nil
+	}
+
+	return (ccLifetimeEpochs - p.provingBuffer), nil
+}

extern/storage-sealing/precommit_policy_test.go

@@ -3,25 +3,45 @@ package sealing_test
 import (
 	"context"
 	"testing"
+	"time"
 
 	"github.com/filecoin-project/go-state-types/network"
 	api "github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/build"
+	"github.com/filecoin-project/lotus/chain/actors/builtin"
+	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
+	"github.com/filecoin-project/lotus/chain/actors/policy"
+	sealing "github.com/filecoin-project/lotus/extern/storage-sealing"
+	"github.com/filecoin-project/lotus/extern/storage-sealing/sealiface"
 
 	"github.com/ipfs/go-cid"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
 	commcid "github.com/filecoin-project/go-fil-commcid"
 	"github.com/filecoin-project/go-state-types/abi"
-
-	sealing "github.com/filecoin-project/lotus/extern/storage-sealing"
 )
 
 type fakeChain struct {
 	h abi.ChainEpoch
 }
 
+type fakeConfigStub struct {
+	CCSectorLifetime time.Duration
+}
+
+func fakeConfigGetter(stub *fakeConfigStub) sealing.GetSealingConfigFunc {
+	return func() (sealiface.Config, error) {
+		if stub == nil {
+			return sealiface.Config{}, nil
+		}
+
+		return sealiface.Config{
+			CommittedCapacitySectorLifetime: stub.CCSectorLifetime,
+		}, nil
+	}
+}
+
 func (f *fakeChain) StateNetworkVersion(ctx context.Context, tok sealing.TipSetToken) (network.Version, error) {
 	return build.NewestNetworkVersion, nil
 }
@@ -38,21 +58,49 @@ func fakePieceCid(t *testing.T) cid.Cid {
 }
 
 func TestBasicPolicyEmptySector(t *testing.T) {
-	policy := sealing.NewBasicPreCommitPolicy(&fakeChain{
-		h: abi.ChainEpoch(55),
-	}, 10, 0)
+	cfg := fakeConfigGetter(nil)
+	h := abi.ChainEpoch(55)
+	pBoundary := abi.ChainEpoch(0)
+	pBuffer := abi.ChainEpoch(2)
+	pcp := sealing.NewBasicPreCommitPolicy(&fakeChain{h: h}, cfg, pBoundary, pBuffer)
+	exp, err := pcp.Expiration(context.Background())
+
+	require.NoError(t, err)
+
+	// as set when there are no deal pieces
+	expected := h + policy.GetMaxSectorExpirationExtension() - (pBuffer * 2)
+	// as set just before returning within Expiration()
+	expected += miner.WPoStProvingPeriod - (expected % miner.WPoStProvingPeriod) + pBoundary - 1
+	assert.Equal(t, int(expected), int(exp))
+}
+
+func TestCustomCCSectorConfig(t *testing.T) {
+	customLifetime := 200 * 24 * time.Hour
+	customLifetimeEpochs := abi.ChainEpoch(int64(customLifetime.Seconds()) / builtin.EpochDurationSeconds)
+	cfgStub := fakeConfigStub{CCSectorLifetime: customLifetime}
+	cfg := fakeConfigGetter(&cfgStub)
+	h := abi.ChainEpoch(55)
+	pBoundary := abi.ChainEpoch(0)
+	pBuffer := abi.ChainEpoch(2)
+	pcp := sealing.NewBasicPreCommitPolicy(&fakeChain{h: h}, cfg, pBoundary, pBuffer)
+	exp, err := pcp.Expiration(context.Background())
 
-	exp, err := policy.Expiration(context.Background())
 	require.NoError(t, err)
 
-	assert.Equal(t, 2879, int(exp))
+	// as set when there are no deal pieces
+	expected := h + customLifetimeEpochs - (pBuffer * 2)
+	// as set just before returning within Expiration()
+	expected += miner.WPoStProvingPeriod - (expected % miner.WPoStProvingPeriod) + pBoundary - 1
+	assert.Equal(t, int(expected), int(exp))
 }
 
 func TestBasicPolicyMostConstrictiveSchedule(t *testing.T) {
+	cfg := fakeConfigGetter(nil)
+	pPeriod := abi.ChainEpoch(11)
 	policy := sealing.NewBasicPreCommitPolicy(&fakeChain{
 		h: abi.ChainEpoch(55),
-	}, 100, 11)
-
+	}, cfg, pPeriod, 2)
+	longestDealEpochEnd := abi.ChainEpoch(100)
 	pieces := []sealing.Piece{
 		{
 			Piece: abi.PieceInfo{
@@ -76,7 +124,7 @@ func TestBasicPolicyMostConstrictiveSchedule(t *testing.T) {
 				DealID: abi.DealID(43),
 				DealSchedule: api.DealSchedule{
 					StartEpoch: abi.ChainEpoch(80),
-					EndEpoch:   abi.ChainEpoch(100),
+					EndEpoch:   longestDealEpochEnd,
 				},
 			},
 		},
@@ -85,13 +133,15 @@ func TestBasicPolicyMostConstrictiveSchedule(t *testing.T) {
 	exp, err := policy.Expiration(context.Background(), pieces...)
 	require.NoError(t, err)
 
-	assert.Equal(t, 2890, int(exp))
+	expected := longestDealEpochEnd + miner.WPoStProvingPeriod - (longestDealEpochEnd % miner.WPoStProvingPeriod) + pPeriod - 1
+	assert.Equal(t, int(expected), int(exp))
 }
 
 func TestBasicPolicyIgnoresExistingScheduleIfExpired(t *testing.T) {
+	cfg := fakeConfigGetter(nil)
 	policy := sealing.NewBasicPreCommitPolicy(&fakeChain{
 		h: abi.ChainEpoch(55),
-	}, 100, 0)
+	}, cfg, 0, 0)
 
 	pieces := []sealing.Piece{
 		{
@@ -112,13 +162,14 @@ func TestBasicPolicyIgnoresExistingScheduleIfExpired(t *testing.T) {
 	exp, err := policy.Expiration(context.Background(), pieces...)
 	require.NoError(t, err)
 
-	assert.Equal(t, 2879, int(exp))
+	assert.Equal(t, 1558079, int(exp))
 }
 
 func TestMissingDealIsIgnored(t *testing.T) {
+	cfg := fakeConfigGetter(nil)
 	policy := sealing.NewBasicPreCommitPolicy(&fakeChain{
 		h: abi.ChainEpoch(55),
-	}, 100, 11)
+	}, cfg, 11, 0)
 
 	pieces := []sealing.Piece{
 		{
@@ -146,5 +197,5 @@ func TestMissingDealIsIgnored(t *testing.T) {
 	exp, err := policy.Expiration(context.Background(), pieces...)
 	require.NoError(t, err)
 
-	assert.Equal(t, 2890, int(exp))
+	assert.Equal(t, 1558090, int(exp))
 }

extern/storage-sealing/sealiface/config.go

@@ -20,6 +20,8 @@ type Config struct {
 
 	WaitDealsDelay time.Duration
 
+	CommittedCapacitySectorLifetime time.Duration
+
 	AlwaysKeepUnsealedCopy bool
 
 	FinalizeEarly bool

node/config/def.go

@@ -10,6 +10,8 @@ import (
 	"github.com/filecoin-project/go-state-types/big"
 	miner5 "github.com/filecoin-project/specs-actors/v5/actors/builtin/miner"
 
+	"github.com/filecoin-project/lotus/chain/actors/builtin"
+	"github.com/filecoin-project/lotus/chain/actors/policy"
 	"github.com/filecoin-project/lotus/chain/types"
 	sectorstorage "github.com/filecoin-project/lotus/extern/sector-storage"
 )
@@ -100,6 +102,8 @@ func DefaultStorageMiner() *StorageMiner {
 			PreCommitBatchWait:  Duration(24 * time.Hour),           // this should be less than 31.5 hours, which is the expiration of a precommit ticket
 			PreCommitBatchSlack: Duration(3 * time.Hour),            // time buffer for forceful batch submission before sectors/deals in batch would start expiring, higher value will lower the chances for message fail due to expiration
 
+			CommittedCapacitySectorLifetime: Duration(builtin.EpochDurationSeconds * policy.GetMaxSectorExpirationExtension()),
+
 			AggregateCommits: true,
 			MinCommitBatch:   miner5.MinAggregatedSectors, // per FIP13, we must have at least four proofs to aggregate, where 4 is the cross over point where aggregation wins out on single provecommit gas costs
 			MaxCommitBatch:   miner5.MaxAggregatedSectors, // maximum 819 sectors, this is the maximum aggregation per FIP13

node/config/types.go

@@ -140,6 +140,11 @@ type SealingConfig struct {
 	// Upper bound on how many sectors can be sealing at the same time when creating new sectors with deals (0 = unlimited)
 	MaxSealingSectorsForDeals uint64
 
+	// CommittedCapacitySectorLifetime is the duration a Committed Capacity (CC) sector will
+	// live before it must be extended or converted into sector containing deals before it is
+	// terminated. Value must be between 180-540 days inclusive
+	CommittedCapacitySectorLifetime Duration
+
 	// Period of time that a newly created sector will wait for more deals to be packed in to before it starts to seal.
 	// Sectors which are fully filled will start sealing immediately
 	WaitDealsDelay Duration

storage/miner.go

@@ -27,7 +27,6 @@ import (
 	"github.com/filecoin-project/lotus/build"
 	"github.com/filecoin-project/lotus/chain/actors/builtin"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
-	"github.com/filecoin-project/lotus/chain/actors/policy"
 	"github.com/filecoin-project/lotus/chain/events"
 	"github.com/filecoin-project/lotus/chain/gen"
 	"github.com/filecoin-project/lotus/chain/types"
@@ -179,19 +178,17 @@ func (m *Miner) Run(ctx context.Context) error {
 		adaptedAPI = NewSealingAPIAdapter(m.api)
 
 		// Instantiate a precommit policy.
-		defaultDuration = policy.GetMaxSectorExpirationExtension() - (md.WPoStProvingPeriod * 2)
+		cfg             = sealing.GetSealingConfigFunc(m.getSealConfig)
 		provingBoundary = md.PeriodStart % md.WPoStProvingPeriod
+		provingBuffer   = md.WPoStProvingPeriod * 2
 
 		// TODO: Maybe we update this policy after actor upgrades?
-		pcp = sealing.NewBasicPreCommitPolicy(adaptedAPI, defaultDuration, provingBoundary)
+		pcp = sealing.NewBasicPreCommitPolicy(adaptedAPI, cfg, provingBoundary, provingBuffer)
 
 		// address selector.
 		as = func(ctx context.Context, mi miner.MinerInfo, use api.AddrUse, goodFunds, minFunds abi.TokenAmount) (address.Address, abi.TokenAmount, error) {
 			return m.addrSel.AddressFor(ctx, m.api, mi, use, goodFunds, minFunds)
 		}
-
-		// sealing configuration.
-		cfg = sealing.GetSealingConfigFunc(m.getSealConfig)
 	)
 
 	// Instantiate the sealing FSM.