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shardblock.go
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shardblock.go
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package block
import (
"bytes"
"context"
"fmt"
"math/big"
"time"
logger "github.com/ElrondNetwork/elrond-go-logger"
"github.com/ElrondNetwork/elrond-go/core"
"github.com/ElrondNetwork/elrond-go/core/check"
"github.com/ElrondNetwork/elrond-go/data"
"github.com/ElrondNetwork/elrond-go/data/block"
"github.com/ElrondNetwork/elrond-go/data/state"
"github.com/ElrondNetwork/elrond-go/dataRetriever"
"github.com/ElrondNetwork/elrond-go/process"
"github.com/ElrondNetwork/elrond-go/process/block/bootstrapStorage"
"github.com/ElrondNetwork/elrond-go/process/block/processedMb"
"github.com/ElrondNetwork/elrond-go/statusHandler"
)
var _ process.BlockProcessor = (*shardProcessor)(nil)
const timeBetweenCheckForEpochStart = 100 * time.Millisecond
// shardProcessor implements shardProcessor interface and actually it tries to execute block
type shardProcessor struct {
*baseProcessor
metaBlockFinality uint32
chRcvAllMetaHdrs chan bool
processedMiniBlocks *processedMb.ProcessedMiniBlockTracker
}
// NewShardProcessor creates a new shardProcessor object
func NewShardProcessor(arguments ArgShardProcessor) (*shardProcessor, error) {
err := checkProcessorNilParameters(arguments.ArgBaseProcessor)
if err != nil {
return nil, err
}
if check.IfNil(arguments.DataPool) {
return nil, process.ErrNilDataPoolHolder
}
if check.IfNil(arguments.DataPool.Headers()) {
return nil, process.ErrNilHeadersDataPool
}
if check.IfNil(arguments.DataPool.Transactions()) {
return nil, process.ErrNilTransactionPool
}
genesisHdr := arguments.BlockChain.GetGenesisHeader()
base := &baseProcessor{
accountsDB: arguments.AccountsDB,
blockSizeThrottler: arguments.BlockSizeThrottler,
forkDetector: arguments.ForkDetector,
hasher: arguments.Hasher,
marshalizer: arguments.Marshalizer,
store: arguments.Store,
shardCoordinator: arguments.ShardCoordinator,
nodesCoordinator: arguments.NodesCoordinator,
uint64Converter: arguments.Uint64Converter,
requestHandler: arguments.RequestHandler,
appStatusHandler: statusHandler.NewNilStatusHandler(),
blockChainHook: arguments.BlockChainHook,
txCoordinator: arguments.TxCoordinator,
rounder: arguments.Rounder,
epochStartTrigger: arguments.EpochStartTrigger,
headerValidator: arguments.HeaderValidator,
bootStorer: arguments.BootStorer,
blockTracker: arguments.BlockTracker,
dataPool: arguments.DataPool,
stateCheckpointModulus: arguments.StateCheckpointModulus,
blockChain: arguments.BlockChain,
feeHandler: arguments.FeeHandler,
indexer: arguments.Indexer,
tpsBenchmark: arguments.TpsBenchmark,
genesisNonce: genesisHdr.GetNonce(),
headerIntegrityVerifier: arguments.HeaderIntegrityVerifier,
historyRepo: arguments.HistoryRepository,
epochNotifier: arguments.EpochNotifier,
}
sp := shardProcessor{
baseProcessor: base,
}
sp.txCounter = NewTransactionCounter()
sp.requestBlockBodyHandler = &sp
sp.blockProcessor = &sp
sp.chRcvAllMetaHdrs = make(chan bool)
sp.hdrsForCurrBlock = newHdrForBlock()
sp.processedMiniBlocks = processedMb.NewProcessedMiniBlocks()
headersPool := sp.dataPool.Headers()
headersPool.RegisterHandler(sp.receivedMetaBlock)
sp.metaBlockFinality = process.BlockFinality
return &sp, nil
}
// ProcessBlock processes a block. It returns nil if all ok or the specific error
func (sp *shardProcessor) ProcessBlock(
headerHandler data.HeaderHandler,
bodyHandler data.BodyHandler,
haveTime func() time.Duration,
) error {
if haveTime == nil {
return process.ErrNilHaveTimeHandler
}
err := sp.checkBlockValidity(headerHandler, bodyHandler)
if err != nil {
if err == process.ErrBlockHashDoesNotMatch {
log.Debug("requested missing shard header",
"hash", headerHandler.GetPrevHash(),
"for shard", headerHandler.GetShardID(),
)
go sp.requestHandler.RequestShardHeader(headerHandler.GetShardID(), headerHandler.GetPrevHash())
}
return err
}
sp.epochNotifier.CheckEpoch(headerHandler.GetEpoch())
sp.requestHandler.SetEpoch(headerHandler.GetEpoch())
log.Debug("started processing block",
"epoch", headerHandler.GetEpoch(),
"round", headerHandler.GetRound(),
"nonce", headerHandler.GetNonce(),
)
header, ok := headerHandler.(*block.Header)
if !ok {
return process.ErrWrongTypeAssertion
}
body, ok := bodyHandler.(*block.Body)
if !ok {
return process.ErrWrongTypeAssertion
}
go getMetricsFromBlockBody(body, sp.marshalizer, sp.appStatusHandler)
err = sp.checkHeaderBodyCorrelation(header.MiniBlockHeaders, body)
if err != nil {
return err
}
txCounts, rewardCounts, unsignedCounts := sp.txCounter.getPoolCounts(sp.dataPool)
log.Debug("total txs in pool", "counts", txCounts.String())
log.Debug("total txs in rewards pool", "counts", rewardCounts.String())
log.Debug("total txs in unsigned pool", "counts", unsignedCounts.String())
go getMetricsFromHeader(header, uint64(txCounts.GetTotal()), sp.marshalizer, sp.appStatusHandler)
sp.createBlockStarted()
sp.blockChainHook.SetCurrentHeader(headerHandler)
sp.txCoordinator.RequestBlockTransactions(body)
requestedMetaHdrs, requestedFinalityAttestingMetaHdrs := sp.requestMetaHeaders(header)
if haveTime() < 0 {
return process.ErrTimeIsOut
}
err = sp.txCoordinator.IsDataPreparedForProcessing(haveTime)
if err != nil {
return err
}
haveMissingMetaHeaders := requestedMetaHdrs > 0 || requestedFinalityAttestingMetaHdrs > 0
if haveMissingMetaHeaders {
if requestedMetaHdrs > 0 {
log.Debug("requested missing meta headers",
"num headers", requestedMetaHdrs,
)
}
if requestedFinalityAttestingMetaHdrs > 0 {
log.Debug("requested missing finality attesting meta headers",
"num finality meta headers", requestedFinalityAttestingMetaHdrs,
)
}
err = sp.waitForMetaHdrHashes(haveTime())
sp.hdrsForCurrBlock.mutHdrsForBlock.RLock()
missingMetaHdrs := sp.hdrsForCurrBlock.missingHdrs
sp.hdrsForCurrBlock.mutHdrsForBlock.RUnlock()
sp.hdrsForCurrBlock.resetMissingHdrs()
if requestedMetaHdrs > 0 {
log.Debug("received missing meta headers",
"num headers", requestedMetaHdrs-missingMetaHdrs,
)
}
if err != nil {
return err
}
}
err = sp.requestEpochStartInfo(header, haveTime)
if err != nil {
return err
}
if sp.accountsDB[state.UserAccountsState].JournalLen() != 0 {
return process.ErrAccountStateDirty
}
defer func() {
go sp.checkAndRequestIfMetaHeadersMissing()
}()
err = sp.checkEpochCorrectnessCrossChain()
if err != nil {
return err
}
err = sp.checkEpochCorrectness(header)
if err != nil {
return err
}
err = sp.checkMetaHeadersValidityAndFinality()
if err != nil {
return err
}
err = sp.verifyCrossShardMiniBlockDstMe(header)
if err != nil {
return err
}
defer func() {
if err != nil {
sp.RevertAccountState(header)
}
}()
startTime := time.Now()
err = sp.txCoordinator.ProcessBlockTransaction(body, haveTime)
elapsedTime := time.Since(startTime)
log.Debug("elapsed time to process block transaction",
"time [s]", elapsedTime,
)
if err != nil {
return err
}
err = sp.txCoordinator.VerifyCreatedBlockTransactions(header, body)
if err != nil {
return err
}
err = sp.txCoordinator.VerifyCreatedMiniBlocks(header, body)
if err != nil {
return err
}
err = sp.verifyFees(header)
if err != nil {
return err
}
if !sp.verifyStateRoot(header.GetRootHash()) {
err = process.ErrRootStateDoesNotMatch
return err
}
return nil
}
func (sp *shardProcessor) requestEpochStartInfo(header *block.Header, haveTime func() time.Duration) error {
if !header.IsStartOfEpochBlock() {
return nil
}
if sp.epochStartTrigger.MetaEpoch() >= header.GetEpoch() {
return nil
}
if sp.epochStartTrigger.IsEpochStart() {
return nil
}
go sp.requestHandler.RequestMetaHeader(header.EpochStartMetaHash)
headersPool := sp.dataPool.Headers()
for {
time.Sleep(timeBetweenCheckForEpochStart)
if haveTime() < 0 {
break
}
if sp.epochStartTrigger.IsEpochStart() {
return nil
}
epochStartMetaHdr, err := headersPool.GetHeaderByHash(header.EpochStartMetaHash)
if err != nil {
continue
}
_, _, err = headersPool.GetHeadersByNonceAndShardId(epochStartMetaHdr.GetNonce()+1, core.MetachainShardId)
if err != nil {
go sp.requestHandler.RequestMetaHeaderByNonce(epochStartMetaHdr.GetNonce() + 1)
continue
}
return nil
}
return process.ErrTimeIsOut
}
// RevertStateToBlock recreates the state tries to the root hashes indicated by the provided header
func (sp *shardProcessor) RevertStateToBlock(header data.HeaderHandler) error {
err := sp.accountsDB[state.UserAccountsState].RecreateTrie(header.GetRootHash())
if err != nil {
log.Debug("recreate trie with error for header",
"nonce", header.GetNonce(),
"hash", header.GetRootHash(),
"error", err,
)
return err
}
err = sp.epochStartTrigger.RevertStateToBlock(header)
if err != nil {
log.Debug("revert epoch start trigger for header",
"nonce", header.GetNonce(),
"error", err,
)
return err
}
return nil
}
func (sp *shardProcessor) checkEpochCorrectness(
header *block.Header,
) error {
currentBlockHeader := sp.blockChain.GetCurrentBlockHeader()
if check.IfNil(currentBlockHeader) {
return nil
}
headerEpochBehindCurrentHeader := header.GetEpoch() < currentBlockHeader.GetEpoch()
if headerEpochBehindCurrentHeader {
return fmt.Errorf("%w proposed header with older epoch %d than blockchain epoch %d",
process.ErrEpochDoesNotMatch, header.GetEpoch(), currentBlockHeader.GetEpoch())
}
isStartOfEpochButShouldNotBe := header.GetEpoch() == currentBlockHeader.GetEpoch() && header.IsStartOfEpochBlock()
if isStartOfEpochButShouldNotBe {
return fmt.Errorf("%w proposed header with same epoch %d as blockchain and it is of epoch start",
process.ErrEpochDoesNotMatch, currentBlockHeader.GetEpoch())
}
incorrectStartOfEpochBlock := header.GetEpoch() != currentBlockHeader.GetEpoch() &&
sp.epochStartTrigger.MetaEpoch() == currentBlockHeader.GetEpoch()
if incorrectStartOfEpochBlock {
return fmt.Errorf("%w proposed header with new epoch %d with trigger still in last epoch %d",
process.ErrEpochDoesNotMatch, header.GetEpoch(), sp.epochStartTrigger.MetaEpoch())
}
isHeaderOfInvalidEpoch := header.GetEpoch() > sp.epochStartTrigger.MetaEpoch()
if isHeaderOfInvalidEpoch {
return fmt.Errorf("%w proposed header with epoch too high %d with trigger in epoch %d",
process.ErrEpochDoesNotMatch, header.GetEpoch(), sp.epochStartTrigger.MetaEpoch())
}
isOldEpochAndShouldBeNew := sp.epochStartTrigger.IsEpochStart() &&
header.GetRound() > sp.epochStartTrigger.EpochFinalityAttestingRound()+process.EpochChangeGracePeriod &&
header.GetEpoch() < sp.epochStartTrigger.MetaEpoch() &&
sp.epochStartTrigger.EpochStartRound() < sp.epochStartTrigger.EpochFinalityAttestingRound()
if isOldEpochAndShouldBeNew {
return fmt.Errorf("%w proposed header with epoch %d should be in epoch %d",
process.ErrEpochDoesNotMatch, header.GetEpoch(), sp.epochStartTrigger.MetaEpoch())
}
isEpochStartMetaHashIncorrect := header.IsStartOfEpochBlock() &&
!bytes.Equal(header.EpochStartMetaHash, sp.epochStartTrigger.EpochStartMetaHdrHash()) &&
header.GetEpoch() == sp.epochStartTrigger.MetaEpoch()
if isEpochStartMetaHashIncorrect {
go sp.requestHandler.RequestMetaHeader(header.EpochStartMetaHash)
log.Warn("epoch start meta hash missmatch", "proposed", header.EpochStartMetaHash, "calculated", sp.epochStartTrigger.EpochStartMetaHdrHash())
return fmt.Errorf("%w proposed header with epoch %d has invalid epochStartMetaHash",
process.ErrEpochDoesNotMatch, header.GetEpoch())
}
isNotEpochStartButShouldBe := header.GetEpoch() != currentBlockHeader.GetEpoch() &&
!header.IsStartOfEpochBlock()
if isNotEpochStartButShouldBe {
return fmt.Errorf("%w proposed header with new epoch %d is not of type epoch start",
process.ErrEpochDoesNotMatch, header.GetEpoch())
}
isOldEpochStart := header.IsStartOfEpochBlock() && header.GetEpoch() < sp.epochStartTrigger.MetaEpoch()
if isOldEpochStart {
metaBlock, err := process.GetMetaHeader(header.EpochStartMetaHash, sp.dataPool.Headers(), sp.marshalizer, sp.store)
if err != nil {
go sp.requestHandler.RequestStartOfEpochMetaBlock(header.GetEpoch())
return fmt.Errorf("%w could not find epoch start metablock for epoch %d",
err, header.GetEpoch())
}
isMetaBlockCorrect := metaBlock.IsStartOfEpochBlock() && metaBlock.GetEpoch() == header.GetEpoch()
if !isMetaBlockCorrect {
return fmt.Errorf("%w proposed header with epoch %d does not include correct start of epoch metaBlock %s",
process.ErrEpochDoesNotMatch, header.GetEpoch(), header.EpochStartMetaHash)
}
}
return nil
}
// SetNumProcessedObj will set the num of processed transactions
func (sp *shardProcessor) SetNumProcessedObj(numObj uint64) {
sp.txCounter.totalTxs = numObj
}
// checkMetaHeadersValidity - checks if listed metaheaders are valid as construction
func (sp *shardProcessor) checkMetaHeadersValidityAndFinality() error {
lastCrossNotarizedHeader, _, err := sp.blockTracker.GetLastCrossNotarizedHeader(core.MetachainShardId)
if err != nil {
return err
}
usedMetaHdrs := sp.sortHeadersForCurrentBlockByNonce(true)
if len(usedMetaHdrs[core.MetachainShardId]) == 0 {
return nil
}
for _, metaHdr := range usedMetaHdrs[core.MetachainShardId] {
err = sp.headerValidator.IsHeaderConstructionValid(metaHdr, lastCrossNotarizedHeader)
if err != nil {
return fmt.Errorf("%w : checkMetaHeadersValidityAndFinality -> isHdrConstructionValid", err)
}
lastCrossNotarizedHeader = metaHdr
}
err = sp.checkMetaHdrFinality(lastCrossNotarizedHeader)
if err != nil {
return err
}
return nil
}
// check if shard headers are final by checking if newer headers were constructed upon them
func (sp *shardProcessor) checkMetaHdrFinality(header data.HeaderHandler) error {
if check.IfNil(header) {
return process.ErrNilBlockHeader
}
finalityAttestingMetaHdrs := sp.sortHeadersForCurrentBlockByNonce(false)
lastVerifiedHdr := header
// verify if there are "K" block after current to make this one final
nextBlocksVerified := uint32(0)
for _, metaHdr := range finalityAttestingMetaHdrs[core.MetachainShardId] {
if nextBlocksVerified >= sp.metaBlockFinality {
break
}
// found a header with the next nonce
if metaHdr.GetNonce() == lastVerifiedHdr.GetNonce()+1 {
err := sp.headerValidator.IsHeaderConstructionValid(metaHdr, lastVerifiedHdr)
if err != nil {
log.Debug("checkMetaHdrFinality -> isHdrConstructionValid",
"error", err.Error())
continue
}
lastVerifiedHdr = metaHdr
nextBlocksVerified += 1
}
}
if nextBlocksVerified < sp.metaBlockFinality {
go sp.requestHandler.RequestMetaHeaderByNonce(lastVerifiedHdr.GetNonce())
go sp.requestHandler.RequestMetaHeaderByNonce(lastVerifiedHdr.GetNonce() + 1)
return process.ErrHeaderNotFinal
}
return nil
}
func (sp *shardProcessor) checkAndRequestIfMetaHeadersMissing() {
orderedMetaBlocks, _ := sp.blockTracker.GetTrackedHeaders(core.MetachainShardId)
err := sp.requestHeadersIfMissing(orderedMetaBlocks, core.MetachainShardId)
if err != nil {
log.Debug("checkAndRequestIfMetaHeadersMissing", "error", err.Error())
}
}
func (sp *shardProcessor) indexBlockIfNeeded(
body data.BodyHandler,
headerHash []byte,
header data.HeaderHandler,
lastBlockHeader data.HeaderHandler,
) {
if sp.indexer.IsNilIndexer() {
return
}
if check.IfNil(header) {
return
}
if check.IfNil(body) {
return
}
log.Debug("preparing to index block", "hash", headerHash, "nonce", header.GetNonce(), "round", header.GetRound())
txPool := sp.txCoordinator.GetAllCurrentUsedTxs(block.TxBlock)
scPool := sp.txCoordinator.GetAllCurrentUsedTxs(block.SmartContractResultBlock)
rewardPool := sp.txCoordinator.GetAllCurrentUsedTxs(block.RewardsBlock)
invalidPool := sp.txCoordinator.GetAllCurrentUsedTxs(block.InvalidBlock)
receiptPool := sp.txCoordinator.GetAllCurrentUsedTxs(block.ReceiptBlock)
for hash, tx := range scPool {
txPool[hash] = tx
}
for hash, tx := range rewardPool {
txPool[hash] = tx
}
for hash, tx := range invalidPool {
txPool[hash] = tx
}
for hash, tx := range receiptPool {
txPool[hash] = tx
}
shardId := sp.shardCoordinator.SelfId()
// TODO: remove if epoch start block needs to be validated by the new epoch nodes
epoch := header.GetEpoch()
if header.IsStartOfEpochBlock() && epoch > 0 {
epoch = epoch - 1
}
pubKeys, err := sp.nodesCoordinator.GetConsensusValidatorsPublicKeys(
header.GetPrevRandSeed(),
header.GetRound(),
shardId,
epoch,
)
if err != nil {
log.Debug("indexBlockIfNeeded: GetConsensusValidatorsPublicKeys",
"hash", headerHash,
"epoch", epoch,
"error", err.Error())
return
}
nodesCoordinatorShardID, err := sp.nodesCoordinator.ShardIdForEpoch(epoch)
if err != nil {
log.Debug("indexBlockIfNeeded: ShardIdForEpoch",
"hash", headerHash,
"epoch", epoch,
"error", err.Error())
return
}
if shardId != nodesCoordinatorShardID {
log.Debug("indexBlockIfNeeded: shardId != nodesCoordinatorShardID",
"epoch", epoch,
"shardCoordinator.ShardID", shardId,
"nodesCoordinator.ShardID", nodesCoordinatorShardID)
return
}
signersIndexes, err := sp.nodesCoordinator.GetValidatorsIndexes(pubKeys, epoch)
if err != nil {
log.Error("indexBlockIfNeeded: GetValidatorsIndexes",
"round", header.GetRound(),
"nonce", header.GetNonce(),
"hash", headerHash,
"error", err.Error(),
)
return
}
sp.indexer.SaveBlock(body, header, txPool, signersIndexes, nil, headerHash)
log.Debug("indexed block", "hash", headerHash, "nonce", header.GetNonce(), "round", header.GetRound())
indexRoundInfo(sp.indexer, sp.nodesCoordinator, shardId, header, lastBlockHeader, signersIndexes)
}
// RestoreBlockIntoPools restores the TxBlock and MetaBlock into associated pools
func (sp *shardProcessor) RestoreBlockIntoPools(headerHandler data.HeaderHandler, bodyHandler data.BodyHandler) error {
if check.IfNil(headerHandler) {
return process.ErrNilBlockHeader
}
header, ok := headerHandler.(*block.Header)
if !ok {
return process.ErrWrongTypeAssertion
}
miniBlockHashes := header.MapMiniBlockHashesToShards()
err := sp.restoreMetaBlockIntoPool(miniBlockHashes, header.MetaBlockHashes)
if err != nil {
return err
}
sp.restoreBlockBody(bodyHandler)
sp.blockTracker.RemoveLastNotarizedHeaders()
return nil
}
func (sp *shardProcessor) restoreMetaBlockIntoPool(mapMiniBlockHashes map[string]uint32, metaBlockHashes [][]byte) error {
headersPool := sp.dataPool.Headers()
mapMetaHashMiniBlockHashes := make(map[string][][]byte, len(metaBlockHashes))
for _, metaBlockHash := range metaBlockHashes {
metaBlock, errNotCritical := process.GetMetaHeaderFromStorage(metaBlockHash, sp.marshalizer, sp.store)
if errNotCritical != nil {
log.Debug("meta block is not fully processed yet and not committed in MetaBlockUnit",
"hash", metaBlockHash)
continue
}
processedMiniBlocks := metaBlock.GetMiniBlockHeadersWithDst(sp.shardCoordinator.SelfId())
for mbHash := range processedMiniBlocks {
mapMetaHashMiniBlockHashes[string(metaBlockHash)] = append(mapMetaHashMiniBlockHashes[string(metaBlockHash)], []byte(mbHash))
}
headersPool.AddHeader(metaBlockHash, metaBlock)
err := sp.store.GetStorer(dataRetriever.MetaBlockUnit).Remove(metaBlockHash)
if err != nil {
log.Debug("unable to remove hash from MetaBlockUnit",
"hash", metaBlockHash)
return err
}
nonceToByteSlice := sp.uint64Converter.ToByteSlice(metaBlock.GetNonce())
errNotCritical = sp.store.GetStorer(dataRetriever.MetaHdrNonceHashDataUnit).Remove(nonceToByteSlice)
if errNotCritical != nil {
log.Debug("error not critical",
"error", errNotCritical.Error())
}
log.Trace("meta block has been restored successfully",
"round", metaBlock.Round,
"nonce", metaBlock.Nonce,
"hash", metaBlockHash)
}
for metaBlockHash, miniBlockHashes := range mapMetaHashMiniBlockHashes {
for _, miniBlockHash := range miniBlockHashes {
sp.processedMiniBlocks.AddMiniBlockHash(metaBlockHash, string(miniBlockHash))
}
}
for miniBlockHash := range mapMiniBlockHashes {
sp.processedMiniBlocks.RemoveMiniBlockHash(miniBlockHash)
}
return nil
}
// CreateBlock creates the final block and header for the current round
func (sp *shardProcessor) CreateBlock(
initialHdr data.HeaderHandler,
haveTime func() bool,
) (data.HeaderHandler, data.BodyHandler, error) {
if check.IfNil(initialHdr) {
return nil, nil, process.ErrNilBlockHeader
}
shardHdr, ok := initialHdr.(*block.Header)
if !ok {
return nil, nil, process.ErrWrongTypeAssertion
}
sp.createBlockStarted()
if sp.epochStartTrigger.IsEpochStart() {
log.Debug("CreateBlock", "IsEpochStart", sp.epochStartTrigger.IsEpochStart(),
"epoch start meta header hash", sp.epochStartTrigger.EpochStartMetaHdrHash())
shardHdr.EpochStartMetaHash = sp.epochStartTrigger.EpochStartMetaHdrHash()
}
shardHdr.SetEpoch(sp.epochStartTrigger.MetaEpoch())
sp.epochNotifier.CheckEpoch(shardHdr.GetEpoch())
sp.blockChainHook.SetCurrentHeader(shardHdr)
shardHdr.SoftwareVersion = []byte(sp.headerIntegrityVerifier.GetVersion(shardHdr.Epoch))
body, err := sp.createBlockBody(shardHdr, haveTime)
if err != nil {
return nil, nil, err
}
finalBody, err := sp.applyBodyToHeader(shardHdr, body)
if err != nil {
return nil, nil, err
}
for _, miniBlock := range finalBody.MiniBlocks {
log.Trace("CreateBlock: miniblock",
"sender shard", miniBlock.SenderShardID,
"receiver shard", miniBlock.ReceiverShardID,
"type", miniBlock.Type,
"num txs", len(miniBlock.TxHashes))
}
return shardHdr, finalBody, nil
}
// createBlockBody creates a a list of miniblocks by filling them with transactions out of the transactions pools
// as long as the transactions limit for the block has not been reached and there is still time to add transactions
func (sp *shardProcessor) createBlockBody(shardHdr *block.Header, haveTime func() bool) (*block.Body, error) {
sp.blockSizeThrottler.ComputeCurrentMaxSize()
log.Debug("started creating block body",
"epoch", shardHdr.GetEpoch(),
"round", shardHdr.GetRound(),
"nonce", shardHdr.GetNonce(),
)
miniBlocks, err := sp.createMiniBlocks(haveTime)
if err != nil {
return nil, err
}
sp.requestHandler.SetEpoch(shardHdr.GetEpoch())
return miniBlocks, nil
}
// CommitBlock commits the block in the blockchain if everything was checked successfully
func (sp *shardProcessor) CommitBlock(
headerHandler data.HeaderHandler,
bodyHandler data.BodyHandler,
) error {
var err error
defer func() {
if err != nil {
sp.RevertAccountState(headerHandler)
}
}()
err = checkForNils(headerHandler, bodyHandler)
if err != nil {
return err
}
sp.store.SetEpochForPutOperation(headerHandler.GetEpoch())
log.Debug("started committing block",
"epoch", headerHandler.GetEpoch(),
"round", headerHandler.GetRound(),
"nonce", headerHandler.GetNonce(),
)
err = sp.checkBlockValidity(headerHandler, bodyHandler)
if err != nil {
return err
}
header, ok := headerHandler.(*block.Header)
if !ok {
err = process.ErrWrongTypeAssertion
return err
}
err = sp.checkEpochCorrectnessCrossChain()
if err != nil {
return err
}
if header.IsStartOfEpochBlock() {
sp.epochStartTrigger.SetProcessed(header, bodyHandler)
}
marshalizedHeader, err := sp.marshalizer.Marshal(header)
if err != nil {
return err
}
headerHash := sp.hasher.Compute(string(marshalizedHeader))
sp.saveShardHeader(header, headerHash, marshalizedHeader)
body, ok := bodyHandler.(*block.Body)
if !ok {
err = process.ErrWrongTypeAssertion
return err
}
sp.saveBody(body, header)
processedMetaHdrs, err := sp.getOrderedProcessedMetaBlocksFromHeader(header)
if err != nil {
return err
}
err = sp.addProcessedCrossMiniBlocksFromHeader(header)
if err != nil {
return err
}
selfNotarizedHeaders, selfNotarizedHeadersHashes, err := sp.getHighestHdrForOwnShardFromMetachain(processedMetaHdrs)
if err != nil {
return err
}
err = sp.saveLastNotarizedHeader(core.MetachainShardId, processedMetaHdrs)
if err != nil {
return err
}
err = sp.commitAll()
if err != nil {
return err
}
log.Info("shard block has been committed successfully",
"epoch", header.Epoch,
"round", header.Round,
"nonce", header.Nonce,
"shard id", header.ShardID,
"hash", headerHash,
)
errNotCritical := sp.updateCrossShardInfo(processedMetaHdrs)
if errNotCritical != nil {
log.Debug("updateCrossShardInfo", "error", errNotCritical.Error())
}
errNotCritical = sp.forkDetector.AddHeader(header, headerHash, process.BHProcessed, selfNotarizedHeaders, selfNotarizedHeadersHashes)
if errNotCritical != nil {
log.Debug("forkDetector.AddHeader", "error", errNotCritical.Error())
}
currentHeader, currentHeaderHash := getLastSelfNotarizedHeaderByItself(sp.blockChain)
sp.blockTracker.AddSelfNotarizedHeader(sp.shardCoordinator.SelfId(), currentHeader, currentHeaderHash)
lastSelfNotarizedHeader, lastSelfNotarizedHeaderHash := sp.getLastSelfNotarizedHeaderByMetachain()
sp.blockTracker.AddSelfNotarizedHeader(core.MetachainShardId, lastSelfNotarizedHeader, lastSelfNotarizedHeaderHash)
sp.notifyFinalMetaHdrs(processedMetaHdrs)
sp.updateState(selfNotarizedHeaders, header)
highestFinalBlockNonce := sp.forkDetector.GetHighestFinalBlockNonce()
log.Debug("highest final shard block",
"nonce", highestFinalBlockNonce,
"shard", sp.shardCoordinator.SelfId(),
)
lastBlockHeader := sp.blockChain.GetCurrentBlockHeader()
err = sp.blockChain.SetCurrentBlockHeader(header)
if err != nil {
return err
}
sp.blockChain.SetCurrentBlockHeaderHash(headerHash)
sp.indexBlockIfNeeded(bodyHandler, headerHash, headerHandler, lastBlockHeader)
sp.recordBlockInHistory(headerHash, headerHandler, bodyHandler)
lastCrossNotarizedHeader, _, err := sp.blockTracker.GetLastCrossNotarizedHeader(core.MetachainShardId)
if err != nil {
return err
}
saveMetricsForCommittedShardBlock(
sp.nodesCoordinator,
sp.appStatusHandler,
logger.DisplayByteSlice(headerHash),
highestFinalBlockNonce,
lastCrossNotarizedHeader,
header,
)
headerInfo := bootstrapStorage.BootstrapHeaderInfo{
ShardId: header.GetShardID(),
Epoch: header.GetEpoch(),
Nonce: header.GetNonce(),
Hash: headerHash,
}
nodesCoordinatorKey := sp.nodesCoordinator.GetSavedStateKey()
epochStartKey := sp.epochStartTrigger.GetSavedStateKey()
args := bootStorerDataArgs{
headerInfo: headerInfo,
round: header.Round,
lastSelfNotarizedHeaders: sp.getBootstrapHeadersInfo(selfNotarizedHeaders, selfNotarizedHeadersHashes),
highestFinalBlockNonce: sp.forkDetector.GetHighestFinalBlockNonce(),
processedMiniBlocks: sp.processedMiniBlocks.ConvertProcessedMiniBlocksMapToSlice(),
nodesCoordinatorConfigKey: nodesCoordinatorKey,
epochStartTriggerConfigKey: epochStartKey,
}
sp.prepareDataForBootStorer(args)
// write data to log
go sp.txCounter.displayLogInfo(
header,
body,
headerHash,
sp.shardCoordinator.NumberOfShards(),
sp.shardCoordinator.SelfId(),
sp.dataPool,
sp.appStatusHandler,
sp.blockTracker,
)
sp.blockSizeThrottler.Succeed(header.Round)
sp.displayPoolsInfo()
errNotCritical = sp.removeTxsFromPools(bodyHandler)
if errNotCritical != nil {
log.Debug("removeTxsFromPools", "error", errNotCritical.Error())
}
sp.cleanupPools(headerHandler)
return nil
}
func (sp *shardProcessor) notifyFinalMetaHdrs(processedMetaHeaders []data.HeaderHandler) {
metaHeaders := make([]data.HeaderHandler, 0)
metaHeadersHashes := make([][]byte, 0)
for _, metaHeader := range processedMetaHeaders {
metaHeaderHash, err := core.CalculateHash(sp.marshalizer, sp.hasher, metaHeader)
if err != nil {
log.Debug("shardProcessor.notifyFinalMetaHdrs", "error", err.Error())
continue
}
metaHeaders = append(metaHeaders, metaHeader)
metaHeadersHashes = append(metaHeadersHashes, metaHeaderHash)
}
if len(metaHeaders) > 0 {
go sp.historyRepo.OnNotarizedBlocks(core.MetachainShardId, metaHeaders, metaHeadersHashes)
}
}
func (sp *shardProcessor) displayPoolsInfo() {
headersPool := sp.dataPool.Headers()
miniBlocksPool := sp.dataPool.MiniBlocks()
log.Trace("pools info",
"shard", sp.shardCoordinator.SelfId(),
"num headers", headersPool.GetNumHeaders(sp.shardCoordinator.SelfId()))
log.Trace("pools info",
"shard", core.MetachainShardId,
"num headers", headersPool.GetNumHeaders(core.MetachainShardId))
// numShardsToKeepHeaders represents the total number of shards for which shard node would keep tracking headers
// (in this case this number is equal with: self shard + metachain)
numShardsToKeepHeaders := 2
capacity := headersPool.MaxSize() * numShardsToKeepHeaders
log.Debug("pools info",
"total headers", headersPool.Len(),
"headers pool capacity", capacity,
"total miniblocks", miniBlocksPool.Len(),
"miniblocks pool capacity", miniBlocksPool.MaxSize(),
)
sp.displayMiniBlocksPool()
}
func (sp *shardProcessor) updateState(headers []data.HeaderHandler, currentHeader *block.Header) {
sp.snapShotEpochStartFromMeta(currentHeader)
for _, hdr := range headers {
if sp.forkDetector.GetHighestFinalBlockNonce() < hdr.GetNonce() {
break
}
prevHeader, errNotCritical := process.GetShardHeader(
hdr.GetPrevHash(),
sp.dataPool.Headers(),
sp.marshalizer,
sp.store,
)
if errNotCritical != nil {