optimize to use finalized block ID index

engine/access/rpc/backend/backend_accounts.go

@@ -66,14 +66,12 @@ func (b *backendAccounts) GetAccountAtBlockHeight(
 	address flow.Address,
 	height uint64,
 ) (*flow.Account, error) {
-	header, err := b.headers.ByHeight(height)
+	blockID, err := b.headers.BlockIDByHeight(height)
 	if err != nil {
 		return nil, rpc.ConvertStorageError(err)
 	}
 
-	blockID := header.ID()
-
-	account, err := b.getAccountAtBlock(ctx, address, blockID, header.Height)
+	account, err := b.getAccountAtBlock(ctx, address, blockID, height)
 	if err != nil {
 		b.log.Debug().Err(err).Msgf("failed to get account at height: %d", height)
 		return nil, err

engine/consensus/approvals/assignment_collector_tree.go

@@ -160,11 +160,10 @@ func (t *AssignmentCollectorTree) selectCollectorsForFinalizedFork(startHeight,
 	var fork []*assignmentCollectorVertex
 	for height := startHeight; height <= finalizedHeight; height++ {
 		iter := t.forest.GetVerticesAtLevel(height)
-		finalizedBlock, err := t.headers.ByHeight(height)
+		finalizedBlockID, err := t.headers.BlockIDByHeight(height)
 		if err != nil {
 			return nil, fmt.Errorf("could not retrieve finalized block at height %d: %w", height, err)
 		}
-		finalizedBlockID := finalizedBlock.ID()
 		for iter.HasNext() {
 			vertex := iter.NextVertex().(*assignmentCollectorVertex)
 			if finalizedBlockID == vertex.collector.BlockID() {

engine/consensus/sealing/core.go

@@ -257,11 +257,11 @@ func (c *Core) processIncorporatedResult(incRes *flow.IncorporatedResult) error
 	// For incorporating blocks at heights that are already finalized, we check that the incorporating block
 	// is on the finalized fork. Otherwise, the incorporating block is orphaned, and we can drop the result.
 	if incorporatedAtHeight <= c.counterLastFinalizedHeight.Value() {
-		finalized, err := c.headers.ByHeight(incorporatedAtHeight)
+		finalizedID, err := c.headers.BlockIDByHeight(incorporatedAtHeight)
 		if err != nil {
 			return fmt.Errorf("could not retrieve finalized block at height %d: %w", incorporatedAtHeight, err)
 		}
-		if finalized.ID() != incRes.IncorporatedBlockID {
+		if finalizedID != incRes.IncorporatedBlockID {
 			// it means that we got incorporated incRes for a block which doesn't extend our chain
 			// and should be discarded from future processing
 			return engine.NewOutdatedInputErrorf("won't process incorporated incRes from orphan block %s", incRes.IncorporatedBlockID)

engine/execution/ingestion/loader/unexecuted_loader.go

@@ -157,12 +157,12 @@ func (e *UnexecutedLoader) finalizedUnexecutedBlocks(ctx context.Context, finali
 	}
 
 	for ; lastExecuted > rootBlock.Height; lastExecuted-- {
-		header, err := e.getHeaderByHeight(lastExecuted)
+		finalizedID, err := e.getHeaderByHeight(lastExecuted)
 		if err != nil {
 			return nil, fmt.Errorf("could not get header at height: %v, %w", lastExecuted, err)
 		}
 
-		executed, err := e.execState.IsBlockExecuted(header.Height, header.ID())
+		executed, err := e.execState.IsBlockExecuted(lastExecuted, finalizedID)
 		if err != nil {
 			return nil, fmt.Errorf("could not check whether block is executed: %w", err)
 		}
@@ -179,12 +179,12 @@ func (e *UnexecutedLoader) finalizedUnexecutedBlocks(ctx context.Context, finali
 	// starting from the first unexecuted block, go through each unexecuted and finalized block
 	// reload its block to execution queues
 	for height := firstUnexecuted; height <= final.Height; height++ {
-		header, err := e.getHeaderByHeight(height)
+		finalizedID, err := e.getHeaderByHeight(height)
 		if err != nil {
 			return nil, fmt.Errorf("could not get header at height: %v, %w", height, err)
 		}
 
-		unexecuted = append(unexecuted, header.ID())
+		unexecuted = append(unexecuted, finalizedID)
 	}
 
 	e.log.Info().
@@ -231,8 +231,8 @@ func (e *UnexecutedLoader) pendingUnexecutedBlocks(ctx context.Context, finalize
 // if the EN is dynamically bootstrapped, the finalized blocks at height range:
 // [ sealedRoot.Height, finalizedRoot.Height - 1] can not be retrieved from
 // protocol state, but only from headers
-func (e *UnexecutedLoader) getHeaderByHeight(height uint64) (*flow.Header, error) {
+func (e *UnexecutedLoader) getHeaderByHeight(height uint64) (flow.Identifier, error) {
 	// we don't use protocol state because for dynamic boostrapped execution node
 	// the last executed and sealed block is below the finalized root block
-	return e.headers.ByHeight(height)
+	return e.headers.BlockIDByHeight(height)
 }

engine/execution/ingestion/loader/unfinalized_loader.go

@@ -60,12 +60,12 @@ func (e *UnfinalizedLoader) LoadUnexecuted(ctx context.Context) ([]flow.Identifi
 	// reload its block to execution queues
 	// loading finalized blocks
 	for height := lastExecuted + 1; height <= final.Height; height++ {
-		header, err := e.getHeaderByHeight(height)
+		finalizedID, err := e.getHeaderByHeight(height)
 		if err != nil {
 			return nil, fmt.Errorf("could not get header at height: %v, %w", height, err)
 		}
 
-		unexecutedFinalized = append(unexecutedFinalized, header.ID())
+		unexecutedFinalized = append(unexecutedFinalized, finalizedID)
 	}
 
 	// loaded all pending blocks
@@ -89,8 +89,8 @@ func (e *UnfinalizedLoader) LoadUnexecuted(ctx context.Context) ([]flow.Identifi
 // if the EN is dynamically bootstrapped, the finalized blocks at height range:
 // [ sealedRoot.Height, finalizedRoot.Height - 1] can not be retrieved from
 // protocol state, but only from headers
-func (e *UnfinalizedLoader) getHeaderByHeight(height uint64) (*flow.Header, error) {
+func (e *UnfinalizedLoader) getHeaderByHeight(height uint64) (flow.Identifier, error) {
 	// we don't use protocol state because for dynamic boostrapped execution node
 	// the last executed and sealed block is below the finalized root block
-	return e.headers.ByHeight(height)
+	return e.headers.BlockIDByHeight(height)
 }

engine/execution/ingestion/stop/stop_control.go

@@ -148,7 +148,7 @@ func (s stopBoundary) String() string {
 // StopControlHeaders is an interface for fetching headers
 // Its jut a small subset of storage.Headers for comments see storage.Headers
 type StopControlHeaders interface {
-	ByHeight(height uint64) (*flow.Header, error)
+	BlockIDByHeight(height uint64) (flow.Identifier, error)
 }
 
 // NewStopControl creates new StopControl.
@@ -476,12 +476,12 @@ func (s *StopControl) blockFinalized(
 
 		// Let's find the ID of the block that should be executed last
 		// which is the parent of the block at the stopHeight
-		header, err := s.headers.ByHeight(s.stopBoundary.StopBeforeHeight - 1)
+		finalizedID, err := s.headers.BlockIDByHeight(s.stopBoundary.StopBeforeHeight - 1)
 		if err != nil {
 			handleErr(fmt.Errorf("failed to get header by height: %w", err))
 			return
 		}
-		parentID = header.ID()
+		parentID = finalizedID
 	}
 
 	s.stopBoundary.stopAfterExecuting = parentID

engine/execution/state/state.go

@@ -487,11 +487,11 @@ func (s *state) GetHighestExecutedBlockID(ctx context.Context) (uint64, flow.Ide
 		// when storehouse is enabled, the highest executed block is consisted as
 		// the highest finalized and executed block
 		height := s.GetHighestFinalizedExecuted()
-		header, err := s.headers.ByHeight(height)
+		finalizedID, err := s.headers.BlockIDByHeight(height)
 		if err != nil {
 			return 0, flow.ZeroID, fmt.Errorf("could not get header by height %v: %w", height, err)
 		}
-		return height, header.ID(), nil
+		return height, finalizedID, nil
 	}
 
 	var blockID flow.Identifier

module/finalizer/consensus/finalizer.go

@@ -75,11 +75,11 @@ func (f *Finalizer) MakeFinal(blockID flow.Identifier) error {
 	}
 
 	if pending.Height <= finalized {
-		dup, err := f.headers.ByHeight(pending.Height)
+		dupID, err := f.headers.BlockIDByHeight(pending.Height)
 		if err != nil {
 			return fmt.Errorf("could not retrieve finalized equivalent: %w", err)
 		}
-		if dup.ID() != blockID {
+		if dupID != blockID {
 			return fmt.Errorf("cannot finalize pending block conflicting with finalized state (height: %d, pending: %x, finalized: %x)", pending.Height, blockID, dup.ID())
 		}
 		return nil