From cadbd00ac4b103a4d878745ba55d1ba0915ec579 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Magiera?= <magik6k@gmail.com>
Date: Mon, 4 Oct 2021 20:00:07 +0200
Subject: [PATCH] sealing: Recover sectors after failed AddPiece

---
 extern/storage-sealing/fsm.go          | 8 +++++++-
 extern/storage-sealing/fsm_events.go   | 4 ++++
 extern/storage-sealing/input.go        | 4 +---
 extern/storage-sealing/sector_state.go | 2 +-
 4 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/extern/storage-sealing/fsm.go b/extern/storage-sealing/fsm.go
index 290aba53b25..00e38694dc4 100644
--- a/extern/storage-sealing/fsm.go
+++ b/extern/storage-sealing/fsm.go
@@ -135,7 +135,11 @@ var fsmPlanners = map[SectorState]func(events []statemachine.Event, state *Secto
 
 	// Sealing errors
 
-	AddPieceFailed: planOne(),
+	AddPieceFailed: planOne(
+		on(SectorRetryWaitDeals{}, WaitDeals),
+		apply(SectorStartPacking{}),
+		apply(SectorAddPiece{}),
+	),
 	SealPreCommit1Failed: planOne(
 		on(SectorRetrySealPreCommit1{}, PreCommit1),
 	),
@@ -400,6 +404,8 @@ func (m *Sealing) plan(events []statemachine.Event, state *SectorInfo) (func(sta
 		return m.handleFinalizeSector, processed, nil
 
 	// Handled failure modes
+	case AddPieceFailed:
+		return m.handleAddPieceFailed, processed, nil
 	case SealPreCommit1Failed:
 		return m.handleSealPrecommit1Failed, processed, nil
 	case SealPreCommit2Failed:
diff --git a/extern/storage-sealing/fsm_events.go b/extern/storage-sealing/fsm_events.go
index 3dab6d40356..650a817995e 100644
--- a/extern/storage-sealing/fsm_events.go
+++ b/extern/storage-sealing/fsm_events.go
@@ -98,6 +98,10 @@ type SectorAddPieceFailed struct{ error }
 func (evt SectorAddPieceFailed) FormatError(xerrors.Printer) (next error) { return evt.error }
 func (evt SectorAddPieceFailed) apply(si *SectorInfo)                     {}
 
+type SectorRetryWaitDeals struct{}
+
+func (evt SectorRetryWaitDeals) apply(si *SectorInfo) {}
+
 type SectorStartPacking struct{}
 
 func (evt SectorStartPacking) apply(*SectorInfo) {}
diff --git a/extern/storage-sealing/input.go b/extern/storage-sealing/input.go
index 361907b2753..b69cf8c19ea 100644
--- a/extern/storage-sealing/input.go
+++ b/extern/storage-sealing/input.go
@@ -245,9 +245,7 @@ func (m *Sealing) handleAddPiece(ctx statemachine.Context, sector SectorInfo) er
 }
 
 func (m *Sealing) handleAddPieceFailed(ctx statemachine.Context, sector SectorInfo) error {
-	log.Errorf("No recovery plan for AddPiece failing")
-	// todo: cleanup sector / just go retry (requires adding offset param to AddPiece in sector-storage for this to be safe)
-	return nil
+	return ctx.Send(SectorRetryWaitDeals{})
 }
 
 func (m *Sealing) SectorAddPieceToAny(ctx context.Context, size abi.UnpaddedPieceSize, data storage.Data, deal api.PieceDealInfo) (api.SectorOffset, error) {
diff --git a/extern/storage-sealing/sector_state.go b/extern/storage-sealing/sector_state.go
index 34a0c6bbef8..b606de5aeb5 100644
--- a/extern/storage-sealing/sector_state.go
+++ b/extern/storage-sealing/sector_state.go
@@ -108,7 +108,7 @@ const (
 
 func toStatState(st SectorState, finEarly bool) statSectorState {
 	switch st {
-	case UndefinedSectorState, Empty, WaitDeals, AddPiece:
+	case UndefinedSectorState, Empty, WaitDeals, AddPiece, AddPieceFailed:
 		return sstStaging
 	case Packing, GetTicket, PreCommit1, PreCommit2, PreCommitting, PreCommitWait, SubmitPreCommitBatch, PreCommitBatchWait, WaitSeed, Committing, CommitFinalize, FinalizeSector:
 		return sstSealing