mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2024-12-23 20:07:17 +00:00
7630f1852f
* check for missing blocks * error log * add test * fix lint * fix test * terence's review * do not mess with on block * Merge refs/heads/master into addCheck
242 lines
8.8 KiB
Go
242 lines
8.8 KiB
Go
package blockchain
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import (
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"bytes"
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"context"
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"encoding/hex"
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"fmt"
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"github.com/pkg/errors"
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ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
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"github.com/prysmaticlabs/prysm/beacon-chain/core/epoch/precompute"
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"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
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statefeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/state"
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"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
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stateTrie "github.com/prysmaticlabs/prysm/beacon-chain/state"
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"github.com/prysmaticlabs/prysm/shared/featureconfig"
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"github.com/prysmaticlabs/prysm/shared/traceutil"
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"github.com/sirupsen/logrus"
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"go.opencensus.io/trace"
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)
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// BlockReceiver interface defines the methods of chain service receive and processing new blocks.
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type BlockReceiver interface {
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ReceiveBlock(ctx context.Context, block *ethpb.SignedBeaconBlock, blockRoot [32]byte) error
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ReceiveBlockNoPubsub(ctx context.Context, block *ethpb.SignedBeaconBlock, blockRoot [32]byte) error
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ReceiveBlockNoPubsubForkchoice(ctx context.Context, block *ethpb.SignedBeaconBlock, blockRoot [32]byte) error
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ReceiveBlockNoVerify(ctx context.Context, block *ethpb.SignedBeaconBlock, blockRoot [32]byte) error
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HasInitSyncBlock(root [32]byte) bool
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}
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// ReceiveBlock is a function that defines the operations that are preformed on
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// blocks that is received from rpc service. The operations consists of:
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// 1. Gossip block to other peers
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// 2. Validate block, apply state transition and update check points
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// 3. Apply fork choice to the processed block
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// 4. Save latest head info
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func (s *Service) ReceiveBlock(ctx context.Context, block *ethpb.SignedBeaconBlock, blockRoot [32]byte) error {
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ctx, span := trace.StartSpan(ctx, "beacon-chain.blockchain.ReceiveBlock")
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defer span.End()
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// Broadcast the new block to the network.
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if err := s.p2p.Broadcast(ctx, block); err != nil {
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return errors.Wrap(err, "could not broadcast block")
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}
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log.WithFields(logrus.Fields{
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"blockRoot": hex.EncodeToString(blockRoot[:]),
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}).Debug("Broadcasting block")
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if err := captureSentTimeMetric(uint64(s.genesisTime.Unix()), block.Block.Slot); err != nil {
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// If a node fails to capture metric, this shouldn't cause the block processing to fail.
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log.Warnf("Could not capture block sent time metric: %v", err)
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}
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if err := s.ReceiveBlockNoPubsub(ctx, block, blockRoot); err != nil {
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return err
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}
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return nil
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}
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// ReceiveBlockNoPubsub is a function that defines the the operations (minus pubsub)
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// that are preformed on blocks that is received from regular sync service. The operations consists of:
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// 1. Validate block, apply state transition and update check points
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// 2. Apply fork choice to the processed block
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// 3. Save latest head info
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func (s *Service) ReceiveBlockNoPubsub(ctx context.Context, block *ethpb.SignedBeaconBlock, blockRoot [32]byte) error {
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ctx, span := trace.StartSpan(ctx, "beacon-chain.blockchain.ReceiveBlockNoPubsub")
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defer span.End()
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blockCopy := stateTrie.CopySignedBeaconBlock(block)
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// Apply state transition on the new block.
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postState, err := s.onBlock(ctx, blockCopy, blockRoot)
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if err != nil {
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err := errors.Wrap(err, "could not process block")
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traceutil.AnnotateError(span, err)
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return err
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}
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// Add attestations from the block to the pool for fork choice.
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if err := s.attPool.SaveBlockAttestations(blockCopy.Block.Body.Attestations); err != nil {
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log.Errorf("Could not save attestation for fork choice: %v", err)
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return nil
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}
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for _, exit := range block.Block.Body.VoluntaryExits {
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s.exitPool.MarkIncluded(exit)
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}
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s.epochParticipationLock.Lock()
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defer s.epochParticipationLock.Unlock()
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s.epochParticipation[helpers.SlotToEpoch(blockCopy.Block.Slot)] = precompute.Balances
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if featureconfig.Get().DisableForkChoice && block.Block.Slot > s.headSlot() {
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if err := s.saveHead(ctx, blockRoot); err != nil {
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return errors.Wrap(err, "could not save head")
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}
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} else {
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if err := s.updateHead(ctx, postState.Balances()); err != nil {
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return errors.Wrap(err, "could not save head")
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}
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}
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// Send notification of the processed block to the state feed.
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s.stateNotifier.StateFeed().Send(&feed.Event{
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Type: statefeed.BlockProcessed,
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Data: &statefeed.BlockProcessedData{
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Slot: blockCopy.Block.Slot,
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BlockRoot: blockRoot,
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Verified: true,
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},
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})
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// Reports on block and fork choice metrics.
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reportSlotMetrics(blockCopy.Block.Slot, s.headSlot(), s.CurrentSlot(), s.finalizedCheckpt)
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// Log block sync status.
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logBlockSyncStatus(blockCopy.Block, blockRoot, s.finalizedCheckpt)
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// Log state transition data.
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logStateTransitionData(blockCopy.Block)
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return nil
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}
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// ReceiveBlockNoPubsubForkchoice is a function that defines the all operations (minus pubsub and forkchoice)
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// that are preformed blocks that is received from initial sync service. The operations consists of:
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// 1. Validate block, apply state transition and update check points
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// 2. Save latest head info
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func (s *Service) ReceiveBlockNoPubsubForkchoice(ctx context.Context, block *ethpb.SignedBeaconBlock, blockRoot [32]byte) error {
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ctx, span := trace.StartSpan(ctx, "beacon-chain.blockchain.ReceiveBlockNoForkchoice")
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defer span.End()
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blockCopy := stateTrie.CopySignedBeaconBlock(block)
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// Apply state transition on the new block.
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_, err := s.onBlock(ctx, blockCopy, blockRoot)
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if err != nil {
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err := errors.Wrap(err, "could not process block")
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traceutil.AnnotateError(span, err)
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return err
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}
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cachedHeadRoot, err := s.HeadRoot(ctx)
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if err != nil {
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return errors.Wrap(err, "could not get head root from cache")
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}
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if !bytes.Equal(blockRoot[:], cachedHeadRoot) {
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if err := s.saveHead(ctx, blockRoot); err != nil {
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return errors.Wrap(err, "could not save head")
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}
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}
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// Send notification of the processed block to the state feed.
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s.stateNotifier.StateFeed().Send(&feed.Event{
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Type: statefeed.BlockProcessed,
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Data: &statefeed.BlockProcessedData{
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Slot: blockCopy.Block.Slot,
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BlockRoot: blockRoot,
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Verified: true,
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},
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})
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// Reports on block and fork choice metrics.
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reportSlotMetrics(blockCopy.Block.Slot, s.headSlot(), s.CurrentSlot(), s.finalizedCheckpt)
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// Log block sync status.
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logBlockSyncStatus(blockCopy.Block, blockRoot, s.finalizedCheckpt)
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// Log state transition data.
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logStateTransitionData(blockCopy.Block)
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s.epochParticipationLock.Lock()
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defer s.epochParticipationLock.Unlock()
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s.epochParticipation[helpers.SlotToEpoch(blockCopy.Block.Slot)] = precompute.Balances
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return nil
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}
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// ReceiveBlockNoVerify runs state transition on a input block without verifying the block's BLS contents.
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// Depends on the security model, this is the "minimal" work a node can do to sync the chain.
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// It simulates light client behavior and assumes 100% trust with the syncing peer.
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func (s *Service) ReceiveBlockNoVerify(ctx context.Context, block *ethpb.SignedBeaconBlock, blockRoot [32]byte) error {
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ctx, span := trace.StartSpan(ctx, "beacon-chain.blockchain.ReceiveBlockNoVerify")
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defer span.End()
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blockCopy := stateTrie.CopySignedBeaconBlock(block)
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// Apply state transition on the incoming newly received blockCopy without verifying its BLS contents.
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if err := s.onBlockInitialSyncStateTransition(ctx, blockCopy, blockRoot); err != nil {
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if err == errAlreadyProcessed {
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log.WithFields(logrus.Fields{
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"root": fmt.Sprintf("%#x", blockRoot),
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}).Debugf("Skipped processing block: %s", errAlreadyProcessed)
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return nil
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}
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err := errors.Wrap(err, "could not process block")
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traceutil.AnnotateError(span, err)
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return err
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}
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cachedHeadRoot, err := s.HeadRoot(ctx)
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if err != nil {
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return errors.Wrap(err, "could not get head root from cache")
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}
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if !bytes.Equal(blockRoot[:], cachedHeadRoot) {
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if err := s.saveHeadNoDB(ctx, blockCopy, blockRoot); err != nil {
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err := errors.Wrap(err, "could not save head")
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traceutil.AnnotateError(span, err)
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return err
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}
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}
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// Send notification of the processed block to the state feed.
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s.stateNotifier.StateFeed().Send(&feed.Event{
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Type: statefeed.BlockProcessed,
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Data: &statefeed.BlockProcessedData{
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Slot: blockCopy.Block.Slot,
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BlockRoot: blockRoot,
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Verified: false,
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},
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})
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// Reports on blockCopy and fork choice metrics.
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reportSlotMetrics(blockCopy.Block.Slot, s.headSlot(), s.CurrentSlot(), s.finalizedCheckpt)
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// Log state transition data.
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log.WithFields(logrus.Fields{
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"slot": blockCopy.Block.Slot,
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"attestations": len(blockCopy.Block.Body.Attestations),
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"deposits": len(blockCopy.Block.Body.Deposits),
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}).Debug("Finished applying state transition")
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s.epochParticipationLock.Lock()
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defer s.epochParticipationLock.Unlock()
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s.epochParticipation[helpers.SlotToEpoch(blockCopy.Block.Slot)] = precompute.Balances
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return nil
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}
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// HasInitSyncBlock returns true if the block of the input root exists in initial sync blocks cache.
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func (s *Service) HasInitSyncBlock(root [32]byte) bool {
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return s.hasInitSyncBlock(root)
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}
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