forked from cerc-io/plugeth
core: polish side chain importer a bit
This commit is contained in:
Péter Szilágyi
parent
493903eede
commit
333b5fb123
@ -1036,6 +1036,18 @@ func (bc *BlockChain) WriteBlockWithState(block *types.Block, receipts []*types.
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return status, nil
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}
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// addFutureBlock checks if the block is within the max allowed window to get
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// accepted for future processing, and returns an error if the block is too far
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// ahead and was not added.
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func (bc *BlockChain) addFutureBlock(block *types.Block) error {
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max := big.NewInt(time.Now().Unix() + maxTimeFutureBlocks)
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if block.Time().Cmp(max) > 0 {
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return fmt.Errorf("future block timestamp %v > allowed %v", block.Time(), max)
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}
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bc.futureBlocks.Add(block.Hash(), block)
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return nil
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}
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// InsertChain attempts to insert the given batch of blocks in to the canonical
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// chain or, otherwise, create a fork. If an error is returned it will return
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// the index number of the failing block as well an error describing what went
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@ -1043,92 +1055,9 @@ func (bc *BlockChain) WriteBlockWithState(block *types.Block, receipts []*types.
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//
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// After insertion is done, all accumulated events will be fired.
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func (bc *BlockChain) InsertChain(chain types.Blocks) (int, error) {
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n, events, logs, err := bc.insertChain(chain)
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bc.PostChainEvents(events, logs)
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return n, err
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}
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// addFutureBlock checks if the block is within the max allowed window to get accepted for future processing, and
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// returns an error if the block is too far ahead and was not added.
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func (bc *BlockChain) addFutureBlock(block *types.Block) error {
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max := big.NewInt(time.Now().Unix() + maxTimeFutureBlocks)
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if block.Time().Cmp(max) > 0 {
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return fmt.Errorf("future block: %v > %v", block.Time(), max)
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}
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bc.futureBlocks.Add(block.Hash(), block)
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return nil
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}
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// importBatch is a helper function to assist during chain import
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type importBatch struct {
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chain types.Blocks
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results <-chan error
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index int
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validator Validator
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}
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// newBatch creates a new batch based on the given blocks, which are assumed to be a contiguous chain
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func newBatch(chain types.Blocks, results <-chan error, validator Validator) *importBatch {
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return &importBatch{
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chain: chain,
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results: results,
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index: -1,
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validator: validator,
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}
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}
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// next returns the next block in the batch, along with any potential validation error for that block
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// When the end is reached, it will return (nil, nil), but Current() will always return the last element.
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func (batch *importBatch) next() (*types.Block, error) {
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if batch.index+1 >= len(batch.chain) {
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return nil, nil
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}
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batch.index++
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if err := <-batch.results; err != nil {
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return batch.chain[batch.index], err
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}
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return batch.chain[batch.index], batch.validator.ValidateBody(batch.chain[batch.index])
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}
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// current returns the current block that's being processed. Even after the next() has progressed the entire
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// chain, current will always return the last element
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func (batch *importBatch) current() *types.Block {
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if batch.index < 0 {
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return nil
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}
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return batch.chain[batch.index]
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}
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// previous returns the previous block was being processed, or nil
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func (batch *importBatch) previous() *types.Block {
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if batch.index < 1 {
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return nil
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}
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return batch.chain[batch.index-1]
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}
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// first returns the first block in the batch
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func (batch *importBatch) first() *types.Block {
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return batch.chain[0]
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}
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// remaining returns the number of remaining blocks
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func (batch *importBatch) remaining() int {
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return len(batch.chain) - batch.index
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}
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// processed returns the number of processed blocks
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func (batch *importBatch) processed() int {
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return batch.index + 1
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}
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// insertChain will execute the actual chain insertion and event aggregation. The
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// only reason this method exists as a separate one is to make locking cleaner
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// with deferred statements.
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func (bc *BlockChain) insertChain(chain types.Blocks) (int, []interface{}, []*types.Log, error) {
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// Sanity check that we have something meaningful to import
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if len(chain) == 0 {
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return 0, nil, nil, nil
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return 0, nil
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}
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// Do a sanity check that the provided chain is actually ordered and linked
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for i := 1; i < len(chain); i++ {
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@ -1137,29 +1066,34 @@ func (bc *BlockChain) insertChain(chain types.Blocks) (int, []interface{}, []*ty
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log.Error("Non contiguous block insert", "number", chain[i].Number(), "hash", chain[i].Hash(),
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"parent", chain[i].ParentHash(), "prevnumber", chain[i-1].Number(), "prevhash", chain[i-1].Hash())
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return 0, nil, nil, fmt.Errorf("non contiguous insert: item %d is #%d [%x…], item %d is #%d [%x…] (parent [%x…])", i-1, chain[i-1].NumberU64(),
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return 0, fmt.Errorf("non contiguous insert: item %d is #%d [%x…], item %d is #%d [%x…] (parent [%x…])", i-1, chain[i-1].NumberU64(),
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chain[i-1].Hash().Bytes()[:4], i, chain[i].NumberU64(), chain[i].Hash().Bytes()[:4], chain[i].ParentHash().Bytes()[:4])
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}
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}
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log.Info("insertChain", "from", chain[0].NumberU64(), "to", chain[len(chain)-1].NumberU64())
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// Pre-checks passed, start the full block imports
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bc.wg.Add(1)
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defer bc.wg.Done()
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bc.chainmu.Lock()
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defer bc.chainmu.Unlock()
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return bc.insertChainInternal(chain, true)
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n, events, logs, err := bc.insertChain(chain, true)
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bc.chainmu.Unlock()
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bc.wg.Done()
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bc.PostChainEvents(events, logs)
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return n, err
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}
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//insertChainInternal is the internal implementation of insertChain, which assumes that
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// 1. chains are contiguous, and
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// 2. The `chainMu` lock is held
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// This method is split out so that import batches that require re-injecting historical blocks can do
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// so without releasing the lock, which could lead to racey behaviour. If a sidechain import is in progress,
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// and the historic state is imported, but then new canon-head is added before the actual sidechain completes,
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// then the historic state could be pruned again
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func (bc *BlockChain) insertChainInternal(chain types.Blocks, verifySeals bool) (int, []interface{}, []*types.Log, error) {
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// insertChain is the internal implementation of insertChain, which assumes that
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// 1) chains are contiguous, and 2) The chain mutex is held.
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//
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// This method is split out so that import batches that require re-injecting
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// historical blocks can do so without releasing the lock, which could lead to
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// racey behaviour. If a sidechain import is in progress, and the historic state
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// is imported, but then new canon-head is added before the actual sidechain
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// completes, then the historic state could be pruned again
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func (bc *BlockChain) insertChain(chain types.Blocks, verifySeals bool) (int, []interface{}, []*types.Log, error) {
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// If the chain is terminating, don't even bother starting u
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if atomic.LoadInt32(&bc.procInterrupt) == 1 {
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return 0, nil, nil, nil
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}
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// Start a parallel signature recovery (signer will fluke on fork transition, minimal perf loss)
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senderCacher.recoverFromBlocks(types.MakeSigner(bc.chainConfig, chain[0].Number()), chain)
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@ -1171,8 +1105,6 @@ func (bc *BlockChain) insertChainInternal(chain types.Blocks, verifySeals bool)
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events = make([]interface{}, 0, len(chain))
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lastCanon *types.Block
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coalescedLogs []*types.Log
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block *types.Block
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err error
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)
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// Start the parallel header verifier
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headers := make([]*types.Header, len(chain))
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@ -1185,52 +1117,51 @@ func (bc *BlockChain) insertChainInternal(chain types.Blocks, verifySeals bool)
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abort, results := bc.engine.VerifyHeaders(bc, headers, seals)
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defer close(abort)
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// Peek the error for the first block
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batch := newBatch(chain, results, bc.Validator())
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if block, err = batch.next(); err != nil {
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if err == consensus.ErrPrunedAncestor {
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return bc.insertSidechainInternal(batch, err)
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} else if err == consensus.ErrFutureBlock ||
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(err == consensus.ErrUnknownAncestor && bc.futureBlocks.Contains(batch.first().ParentHash())) {
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// Peek the error for the first block to decide the directing import logic
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it := newInsertIterator(chain, results, bc.Validator())
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// The first block is a future block
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// We can shove that one and any child blocks (that fail because of UnknownAncestor) into the future-queue
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for block != nil && (batch.index == 0 || err == consensus.ErrUnknownAncestor) {
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block := batch.current()
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if futureError := bc.addFutureBlock(block); futureError != nil {
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return batch.index, events, coalescedLogs, futureError
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block, err := it.next()
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switch {
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// First block is pruned, insert as sidechain and reorg only if TD grows enough
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case err == consensus.ErrPrunedAncestor:
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return bc.insertSidechain(it)
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// First block is future, shove it (and all children) to the future queue (unknown ancestor)
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case err == consensus.ErrFutureBlock || (err == consensus.ErrUnknownAncestor && bc.futureBlocks.Contains(it.first().ParentHash())):
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for block != nil && (it.index == 0 || err == consensus.ErrUnknownAncestor) {
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if err := bc.addFutureBlock(block); err != nil {
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return it.index, events, coalescedLogs, err
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}
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block, err = batch.next()
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block, err = it.next()
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}
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stats.queued += batch.processed()
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stats.ignored += batch.remaining()
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stats.queued += it.processed()
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stats.ignored += it.remaining()
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// If there are any still remaining, mark as ignored
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return batch.index, events, coalescedLogs, err
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} else if err == ErrKnownBlock {
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return it.index, events, coalescedLogs, err
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// Block and state both already known -- there can be two explanations.
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// First block (and state) is known
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// 1. We did a roll-back, and should now do a re-import
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// 2. The block is stored as a sidechain, and is lying about it's stateroot, and passes a stateroot
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// from the canonical chain, which has not been verified.
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case err == ErrKnownBlock:
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// Skip all known blocks that behind us
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current := bc.CurrentBlock().NumberU64()
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// Skip all known blocks that are blocks behind us
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currentNum := bc.CurrentBlock().NumberU64()
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for block != nil && err == ErrKnownBlock && currentNum >= block.NumberU64() {
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// We ignore these
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for block != nil && err == ErrKnownBlock && current >= block.NumberU64() {
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stats.ignored++
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block, err = batch.next()
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block, err = it.next()
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}
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// Falls through to the block import
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} else {
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// Some other error
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stats.ignored += len(batch.chain)
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// Some other error occurred, abort
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case err != nil:
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stats.ignored += len(it.chain)
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bc.reportBlock(block, nil, err)
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return batch.index, events, coalescedLogs, err
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return it.index, events, coalescedLogs, err
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}
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}
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// No validation errors
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for ; block != nil && err == nil; block, err = batch.next() {
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// No validation errors for the first block (or chain prefix skipped)
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for ; block != nil && err == nil; block, err = it.next() {
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// If the chain is terminating, stop processing blocks
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if atomic.LoadInt32(&bc.procInterrupt) == 1 {
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log.Debug("Premature abort during blocks processing")
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@ -1239,43 +1170,43 @@ func (bc *BlockChain) insertChainInternal(chain types.Blocks, verifySeals bool)
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// If the header is a banned one, straight out abort
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if BadHashes[block.Hash()] {
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bc.reportBlock(block, nil, ErrBlacklistedHash)
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return batch.index, events, coalescedLogs, ErrBlacklistedHash
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return it.index, events, coalescedLogs, ErrBlacklistedHash
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}
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bstart := time.Now()
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var parent *types.Block
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parent = batch.previous()
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// Retrieve the parent block and it's state to execute on top
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start := time.Now()
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parent := it.previous()
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if parent == nil {
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parent = bc.GetBlock(block.ParentHash(), block.NumberU64()-1)
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}
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state, err := state.New(parent.Root(), bc.stateCache)
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if err != nil {
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return batch.index, events, coalescedLogs, err
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return it.index, events, coalescedLogs, err
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}
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// Process block using the parent state as reference point.
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receipts, logs, usedGas, err := bc.processor.Process(block, state, bc.vmConfig)
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if err != nil {
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bc.reportBlock(block, receipts, err)
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return batch.index, events, coalescedLogs, err
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return it.index, events, coalescedLogs, err
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}
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// Validate the state using the default validator
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if err := bc.Validator().ValidateState(block, parent, state, receipts, usedGas); err != nil {
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bc.reportBlock(block, receipts, err)
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return batch.index, events, coalescedLogs, err
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return it.index, events, coalescedLogs, err
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}
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proctime := time.Since(bstart)
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proctime := time.Since(start)
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// Write the block to the chain and get the status.
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status, err := bc.WriteBlockWithState(block, receipts, state)
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if err != nil {
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return batch.index, events, coalescedLogs, err
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return it.index, events, coalescedLogs, err
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}
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switch status {
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case CanonStatTy:
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log.Debug("Inserted new block", "number", block.Number(), "hash", block.Hash(),
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"uncles", len(block.Uncles()), "txs", len(block.Transactions()), "gas", block.GasUsed(),
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"elapsed", common.PrettyDuration(time.Since(bstart)),
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"root", block.Root().String())
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"elapsed", common.PrettyDuration(time.Since(start)),
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"root", block.Root())
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coalescedLogs = append(coalescedLogs, logs...)
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events = append(events, ChainEvent{block, block.Hash(), logs})
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@ -1286,192 +1217,152 @@ func (bc *BlockChain) insertChainInternal(chain types.Blocks, verifySeals bool)
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case SideStatTy:
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log.Debug("Inserted forked block", "number", block.Number(), "hash", block.Hash(),
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"diff", block.Difficulty(), "elapsed", common.PrettyDuration(time.Since(bstart)),
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"diff", block.Difficulty(), "elapsed", common.PrettyDuration(time.Since(start)),
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"txs", len(block.Transactions()), "gas", block.GasUsed(), "uncles", len(block.Uncles()),
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"root", block.Root().String())
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"root", block.Root())
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events = append(events, ChainSideEvent{block})
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}
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blockInsertTimer.UpdateSince(bstart)
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blockInsertTimer.UpdateSince(start)
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stats.processed++
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stats.usedGas += usedGas
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cache, _ := bc.stateCache.TrieDB().Size()
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stats.report(chain, batch.index, cache)
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stats.report(chain, it.index, cache)
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}
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// Any blocks remaining here? If so, the only ones we need to care about are
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// shoving future blocks into queue
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// Any blocks remaining here? The only ones we care about are the future ones
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if block != nil && err == consensus.ErrFutureBlock {
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if futureErr := bc.addFutureBlock(block); futureErr != nil {
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return batch.index, events, coalescedLogs, futureErr
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if err := bc.addFutureBlock(block); err != nil {
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return it.index, events, coalescedLogs, err
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}
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for block, err = batch.next(); block != nil && err == consensus.ErrUnknownAncestor; {
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if futureErr := bc.addFutureBlock(block); futureErr != nil {
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return batch.index, events, coalescedLogs, futureErr
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block, err = it.next()
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for ; block != nil && err == consensus.ErrUnknownAncestor; block, err = it.next() {
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if err := bc.addFutureBlock(block); err != nil {
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return it.index, events, coalescedLogs, err
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}
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stats.queued++
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block, err = batch.next()
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}
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}
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stats.ignored += batch.remaining()
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stats.ignored += it.remaining()
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// Append a single chain head event if we've progressed the chain
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if lastCanon != nil && bc.CurrentBlock().Hash() == lastCanon.Hash() {
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events = append(events, ChainHeadEvent{lastCanon})
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}
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return 0, events, coalescedLogs, err
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return it.index, events, coalescedLogs, err
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}
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// insertSidechainInternal should be called when an import batch hits upon a pruned ancestor error, which happens when
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// an sidechain with a sufficiently old fork-block is found. It writes all (header-and-body-valid) blocks to disk, then
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// tries to switch over to the new chain if the TD exceeded the current chain.
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// It assumes that relevant locks are held already (hence 'Internal')
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func (bc *BlockChain) insertSidechainInternal(batch *importBatch, err error) (int, []interface{}, []*types.Log, error) {
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// If we're given a chain of blocks, and the first one is pruned, that means we're getting a
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// sidechain imported. On the sidechain, we validate headers, but do not validate body and state
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// (and actually import them) until the sidechain reaches a higher TD.
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// Until then, we store them in the database (assuming that the header PoW check works out)
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// insertSidechain is called when an import batch hits upon a pruned ancestor
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// error, which happens when a sidechain with a sufficiently old fork-block is
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// found.
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//
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// The method writes all (header-and-body-valid) blocks to disk, then tries to
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// switch over to the new chain if the TD exceeded the current chain.
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func (bc *BlockChain) insertSidechain(it *insertIterator) (int, []interface{}, []*types.Log, error) {
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var (
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externTd *big.Int
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canonHeadNumber = bc.CurrentBlock().NumberU64()
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events = make([]interface{}, 0)
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coalescedLogs []*types.Log
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current = bc.CurrentBlock().NumberU64()
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)
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// The first sidechain block error is already verified to be ErrPrunedAncestor. Since we don't import
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// them here, we expect ErrUnknownAncestor for the remaining ones. Any other errors means that
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// the block is invalid, and should not be written to disk.
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block := batch.current()
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for block != nil && (err == consensus.ErrPrunedAncestor) {
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// Check the canonical stateroot for that number
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if remoteNum := block.NumberU64(); canonHeadNumber >= remoteNum {
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canonBlock := bc.GetBlockByNumber(remoteNum)
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if canonBlock != nil && canonBlock.Root() == block.Root() {
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// This is most likely a shadow-state attack.
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// When a fork is imported into the database, and it eventually reaches a block height which is
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// not pruned, we just found that the state already exist! This means that the sidechain block
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// The first sidechain block error is already verified to be ErrPrunedAncestor.
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// Since we don't import them here, we expect ErrUnknownAncestor for the remaining
|
||||
// ones. Any other errors means that the block is invalid, and should not be written
|
||||
// to disk.
|
||||
block, err := it.current(), consensus.ErrPrunedAncestor
|
||||
for ; block != nil && (err == consensus.ErrPrunedAncestor); block, err = it.next() {
|
||||
// Check the canonical state root for that number
|
||||
if number := block.NumberU64(); current >= number {
|
||||
if canonical := bc.GetBlockByNumber(number); canonical != nil && canonical.Root() == block.Root() {
|
||||
// This is most likely a shadow-state attack. When a fork is imported into the
|
||||
// database, and it eventually reaches a block height which is not pruned, we
|
||||
// just found that the state already exist! This means that the sidechain block
|
||||
// refers to a state which already exists in our canon chain.
|
||||
// If left unchecked, we would now proceed importing the blocks, without actually having verified
|
||||
// the state of the previous blocks.
|
||||
log.Warn("Sidechain ghost-state attack detected", "blocknum", block.NumberU64(),
|
||||
"sidechain root", block.Root(), "canon root", canonBlock.Root())
|
||||
//
|
||||
// If left unchecked, we would now proceed importing the blocks, without actually
|
||||
// having verified the state of the previous blocks.
|
||||
log.Warn("Sidechain ghost-state attack detected", "number", block.NumberU64(), "sideroot", block.Root(), "canonroot", canonical.Root())
|
||||
|
||||
// If someone legitimately side-mines blocks, they would still be imported as usual. However,
|
||||
// we cannot risk writing unverified blocks to disk when they obviously target the pruning
|
||||
// mechanism.
|
||||
return batch.index, events, coalescedLogs, fmt.Errorf("sidechain ghost-state attack detected")
|
||||
return it.index, nil, nil, errors.New("sidechain ghost-state attack")
|
||||
}
|
||||
}
|
||||
if externTd == nil {
|
||||
externTd = bc.GetTd(block.ParentHash(), block.NumberU64()-1)
|
||||
}
|
||||
externTd = new(big.Int).Add(externTd, block.Difficulty())
|
||||
|
||||
if !bc.HasBlock(block.Hash(), block.NumberU64()) {
|
||||
start := time.Now()
|
||||
if err := bc.WriteBlockWithoutState(block, externTd); err != nil {
|
||||
return batch.index, events, coalescedLogs, err
|
||||
return it.index, nil, nil, err
|
||||
}
|
||||
log.Debug("Inserted sidechain block", "number", block.Number(), "hash", block.Hash(),
|
||||
"diff", block.Difficulty(), "elapsed", common.PrettyDuration(time.Since(start)),
|
||||
"txs", len(block.Transactions()), "gas", block.GasUsed(), "uncles", len(block.Uncles()),
|
||||
"root", block.Root())
|
||||
}
|
||||
}
|
||||
block, err = batch.next()
|
||||
}
|
||||
// At this point, we've written all sidechain blocks to database. Loop ended either on some other error,
|
||||
// or all were processed. If there was some other error, we can ignore the rest of those blocks.
|
||||
// At this point, we've written all sidechain blocks to database. Loop ended
|
||||
// either on some other error or all were processed. If there was some other
|
||||
// error, we can ignore the rest of those blocks.
|
||||
//
|
||||
// If the externTd was larger than our local TD, we now need to reimport the previous
|
||||
// blocks to regenerate the required state
|
||||
currentBlock := bc.CurrentBlock()
|
||||
localTd := bc.GetTd(currentBlock.Hash(), currentBlock.NumberU64())
|
||||
// don't process until the competitor TD goes above the canonical TD
|
||||
localTd := bc.GetTd(bc.CurrentBlock().Hash(), current)
|
||||
if localTd.Cmp(externTd) > 0 {
|
||||
// If we have hit a sidechain, we may have to reimport pruned blocks
|
||||
log.Info("Sidechain stored", "start", batch.first().NumberU64(), "end", batch.current().NumberU64(), "sidechain TD", externTd, "local TD", localTd)
|
||||
return batch.index, events, coalescedLogs, err
|
||||
log.Info("Sidechain written to disk", "start", it.first().NumberU64(), "end", it.previous().NumberU64(), "sidetd", externTd, "localtd", localTd)
|
||||
return it.index, nil, nil, err
|
||||
}
|
||||
// Competitor chain beat canonical. Before we reprocess to get the common ancestor, investigate if
|
||||
// any blocks in the chain are 'known bad' blocks.
|
||||
for index, b := range batch.chain {
|
||||
if bc.badBlocks.Contains(b.Hash()) {
|
||||
log.Info("Sidechain import aborted, bad block found", "index", index, "hash", b.Hash())
|
||||
return index, events, coalescedLogs, fmt.Errorf("known bad block %d 0x%x", b.NumberU64(), b.Hash())
|
||||
// Gather all the sidechain hashes (full blocks may be memory heavy)
|
||||
var (
|
||||
hashes []common.Hash
|
||||
numbers []uint64
|
||||
)
|
||||
parent := bc.GetHeader(it.previous().Hash(), it.previous().NumberU64())
|
||||
for parent != nil && !bc.HasState(parent.Root) {
|
||||
hashes = append(hashes, parent.Hash())
|
||||
numbers = append(numbers, parent.Number.Uint64())
|
||||
|
||||
parent = bc.GetHeader(parent.ParentHash, parent.Number.Uint64()-1)
|
||||
}
|
||||
}
|
||||
// gather all blocks from the common ancestor
|
||||
var parents []*types.Block
|
||||
// Import all the pruned blocks to make the state available
|
||||
parent := bc.GetBlock(batch.first().ParentHash(), batch.first().NumberU64()-1)
|
||||
for !bc.HasState(parent.Root()) {
|
||||
if bc.badBlocks.Contains(parent.Hash()) {
|
||||
log.Info("Sidechain parent processing aborted, bad block found", "number", parent.NumberU64(), "hash", parent.Hash())
|
||||
return 0, events, coalescedLogs, fmt.Errorf("known bad block %d 0x%x", parent.NumberU64(), parent.Hash())
|
||||
}
|
||||
parents = append(parents, parent)
|
||||
parent = bc.GetBlock(parent.ParentHash(), parent.NumberU64()-1)
|
||||
}
|
||||
for j := 0; j < len(parents)/2; j++ {
|
||||
parents[j], parents[len(parents)-1-j] = parents[len(parents)-1-j], parents[j]
|
||||
if parent == nil {
|
||||
return it.index, nil, nil, errors.New("missing parent")
|
||||
}
|
||||
// Import all the pruned blocks to make the state available
|
||||
// During re-import, we can disable PoW-verification, since these are already verified
|
||||
log.Info("Inserting parent blocks for reprocessing", "first", parents[0].NumberU64(), "count", len(parents), "last", parents[len(parents)-1].NumberU64)
|
||||
_, evs, logs, err := bc.insertChainInternal(parents, false)
|
||||
events, coalescedLogs = evs, logs
|
||||
if err != nil {
|
||||
return 0, events, coalescedLogs, err
|
||||
}
|
||||
log.Info("Inserting sidechain blocks for processing")
|
||||
errindex, events, coalescedLogs, err := bc.insertChainInternal(batch.chain[0:batch.index], false)
|
||||
return errindex, events, coalescedLogs, err
|
||||
}
|
||||
|
||||
// insertStats tracks and reports on block insertion.
|
||||
type insertStats struct {
|
||||
queued, processed, ignored int
|
||||
usedGas uint64
|
||||
lastIndex int
|
||||
startTime mclock.AbsTime
|
||||
}
|
||||
|
||||
// statsReportLimit is the time limit during import and export after which we
|
||||
// always print out progress. This avoids the user wondering what's going on.
|
||||
const statsReportLimit = 8 * time.Second
|
||||
|
||||
// report prints statistics if some number of blocks have been processed
|
||||
// or more than a few seconds have passed since the last message.
|
||||
func (st *insertStats) report(chain []*types.Block, index int, cache common.StorageSize) {
|
||||
// Fetch the timings for the batch
|
||||
var (
|
||||
now = mclock.Now()
|
||||
elapsed = time.Duration(now) - time.Duration(st.startTime)
|
||||
blocks []*types.Block
|
||||
memory common.StorageSize
|
||||
)
|
||||
// If we're at the last block of the batch or report period reached, log
|
||||
if index == len(chain)-1 || elapsed >= statsReportLimit {
|
||||
var (
|
||||
end = chain[index]
|
||||
txs = countTransactions(chain[st.lastIndex : index+1])
|
||||
)
|
||||
context := []interface{}{
|
||||
"blocks", st.processed, "txs", txs, "mgas", float64(st.usedGas) / 1000000,
|
||||
"elapsed", common.PrettyDuration(elapsed), "mgasps", float64(st.usedGas) * 1000 / float64(elapsed),
|
||||
"number", end.Number(), "hash", end.Hash(),
|
||||
}
|
||||
if timestamp := time.Unix(end.Time().Int64(), 0); time.Since(timestamp) > time.Minute {
|
||||
context = append(context, []interface{}{"age", common.PrettyAge(timestamp)}...)
|
||||
}
|
||||
context = append(context, []interface{}{"cache", cache}...)
|
||||
for i := len(hashes) - 1; i >= 0; i-- {
|
||||
// Append the next block to our batch
|
||||
block := bc.GetBlock(hashes[i], numbers[i])
|
||||
|
||||
if st.queued > 0 {
|
||||
context = append(context, []interface{}{"queued", st.queued}...)
|
||||
}
|
||||
if st.ignored > 0 {
|
||||
context = append(context, []interface{}{"ignored", st.ignored}...)
|
||||
}
|
||||
log.Info("Imported new chain segment", context...)
|
||||
blocks = append(blocks, block)
|
||||
memory += block.Size()
|
||||
|
||||
*st = insertStats{startTime: now, lastIndex: index + 1}
|
||||
// If memory use grew too large, import and continue. Sadly we need to discard
|
||||
// all raised events and logs from notifications since we're too heavy on the
|
||||
// memory here.
|
||||
if len(blocks) >= 2048 || memory > 64*1024*1024 {
|
||||
log.Info("Importing heavy sidechain segment", "blocks", len(blocks), "start", blocks[0].NumberU64(), "end", block.NumberU64())
|
||||
if _, _, _, err := bc.insertChain(blocks, false); err != nil {
|
||||
return 0, nil, nil, err
|
||||
}
|
||||
}
|
||||
blocks, memory = blocks[:0], 0
|
||||
|
||||
func countTransactions(chain []*types.Block) (c int) {
|
||||
for _, b := range chain {
|
||||
c += len(b.Transactions())
|
||||
// If the chain is terminating, stop processing blocks
|
||||
if atomic.LoadInt32(&bc.procInterrupt) == 1 {
|
||||
log.Debug("Premature abort during blocks processing")
|
||||
return 0, nil, nil, nil
|
||||
}
|
||||
return c
|
||||
}
|
||||
}
|
||||
if len(blocks) > 0 {
|
||||
log.Info("Importing sidechain segment", "start", blocks[0].NumberU64(), "end", blocks[len(blocks)-1].NumberU64())
|
||||
return bc.insertChain(blocks, false)
|
||||
}
|
||||
return 0, nil, nil, nil
|
||||
}
|
||||
|
||||
// reorgs takes two blocks, an old chain and a new chain and will reconstruct the blocks and inserts them
|
||||
|
||||
143
core/blockchain_insert.go
Normal file
143
core/blockchain_insert.go
Normal file
@ -0,0 +1,143 @@
|
||||
// Copyright 2018 The go-ethereum Authors
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU Lesser General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// The go-ethereum library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public License
|
||||
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package core
|
||||
|
||||
import (
|
||||
"time"
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/common/mclock"
|
||||
"github.com/ethereum/go-ethereum/core/types"
|
||||
"github.com/ethereum/go-ethereum/log"
|
||||
)
|
||||
|
||||
// insertStats tracks and reports on block insertion.
|
||||
type insertStats struct {
|
||||
queued, processed, ignored int
|
||||
usedGas uint64
|
||||
lastIndex int
|
||||
startTime mclock.AbsTime
|
||||
}
|
||||
|
||||
// statsReportLimit is the time limit during import and export after which we
|
||||
// always print out progress. This avoids the user wondering what's going on.
|
||||
const statsReportLimit = 8 * time.Second
|
||||
|
||||
// report prints statistics if some number of blocks have been processed
|
||||
// or more than a few seconds have passed since the last message.
|
||||
func (st *insertStats) report(chain []*types.Block, index int, cache common.StorageSize) {
|
||||
// Fetch the timings for the batch
|
||||
var (
|
||||
now = mclock.Now()
|
||||
elapsed = time.Duration(now) - time.Duration(st.startTime)
|
||||
)
|
||||
// If we're at the last block of the batch or report period reached, log
|
||||
if index == len(chain)-1 || elapsed >= statsReportLimit {
|
||||
// Count the number of transactions in this segment
|
||||
var txs int
|
||||
for _, block := range chain[st.lastIndex : index+1] {
|
||||
txs += len(block.Transactions())
|
||||
}
|
||||
end := chain[index]
|
||||
|
||||
// Assemble the log context and send it to the logger
|
||||
context := []interface{}{
|
||||
"blocks", st.processed, "txs", txs, "mgas", float64(st.usedGas) / 1000000,
|
||||
"elapsed", common.PrettyDuration(elapsed), "mgasps", float64(st.usedGas) * 1000 / float64(elapsed),
|
||||
"number", end.Number(), "hash", end.Hash(),
|
||||
}
|
||||
if timestamp := time.Unix(end.Time().Int64(), 0); time.Since(timestamp) > time.Minute {
|
||||
context = append(context, []interface{}{"age", common.PrettyAge(timestamp)}...)
|
||||
}
|
||||
context = append(context, []interface{}{"cache", cache}...)
|
||||
|
||||
if st.queued > 0 {
|
||||
context = append(context, []interface{}{"queued", st.queued}...)
|
||||
}
|
||||
if st.ignored > 0 {
|
||||
context = append(context, []interface{}{"ignored", st.ignored}...)
|
||||
}
|
||||
log.Info("Imported new chain segment", context...)
|
||||
|
||||
// Bump the stats reported to the next section
|
||||
*st = insertStats{startTime: now, lastIndex: index + 1}
|
||||
}
|
||||
}
|
||||
|
||||
// insertIterator is a helper to assist during chain import.
|
||||
type insertIterator struct {
|
||||
chain types.Blocks
|
||||
results <-chan error
|
||||
index int
|
||||
validator Validator
|
||||
}
|
||||
|
||||
// newInsertIterator creates a new iterator based on the given blocks, which are
|
||||
// assumed to be a contiguous chain.
|
||||
func newInsertIterator(chain types.Blocks, results <-chan error, validator Validator) *insertIterator {
|
||||
return &insertIterator{
|
||||
chain: chain,
|
||||
results: results,
|
||||
index: -1,
|
||||
validator: validator,
|
||||
}
|
||||
}
|
||||
|
||||
// next returns the next block in the iterator, along with any potential validation
|
||||
// error for that block. When the end is reached, it will return (nil, nil).
|
||||
func (it *insertIterator) next() (*types.Block, error) {
|
||||
if it.index+1 >= len(it.chain) {
|
||||
it.index = len(it.chain)
|
||||
return nil, nil
|
||||
}
|
||||
it.index++
|
||||
if err := <-it.results; err != nil {
|
||||
return it.chain[it.index], err
|
||||
}
|
||||
return it.chain[it.index], it.validator.ValidateBody(it.chain[it.index])
|
||||
}
|
||||
|
||||
// current returns the current block that's being processed.
|
||||
func (it *insertIterator) current() *types.Block {
|
||||
if it.index < 0 || it.index+1 >= len(it.chain) {
|
||||
return nil
|
||||
}
|
||||
return it.chain[it.index]
|
||||
}
|
||||
|
||||
// previous returns the previous block was being processed, or nil
|
||||
func (it *insertIterator) previous() *types.Block {
|
||||
if it.index < 1 {
|
||||
return nil
|
||||
}
|
||||
return it.chain[it.index-1]
|
||||
}
|
||||
|
||||
// first returns the first block in the it.
|
||||
func (it *insertIterator) first() *types.Block {
|
||||
return it.chain[0]
|
||||
}
|
||||
|
||||
// remaining returns the number of remaining blocks.
|
||||
func (it *insertIterator) remaining() int {
|
||||
return len(it.chain) - it.index
|
||||
}
|
||||
|
||||
// processed returns the number of processed blocks.
|
||||
func (it *insertIterator) processed() int {
|
||||
return it.index + 1
|
||||
}
|
||||
@ -579,11 +579,11 @@ func testInsertNonceError(t *testing.T, full bool) {
|
||||
blockchain.hc.engine = blockchain.engine
|
||||
failRes, err = blockchain.InsertHeaderChain(headers, 1)
|
||||
}
|
||||
// Check that the returned error indicates the failure.
|
||||
// Check that the returned error indicates the failure
|
||||
if failRes != failAt {
|
||||
t.Errorf("test %d: failure index mismatch: have %d, want %d", i, failRes, failAt)
|
||||
t.Errorf("test %d: failure (%v) index mismatch: have %d, want %d", i, err, failRes, failAt)
|
||||
}
|
||||
// Check that all no blocks after the failing block have been inserted.
|
||||
// Check that all blocks after the failing block have been inserted
|
||||
for j := 0; j < i-failAt; j++ {
|
||||
if full {
|
||||
if block := blockchain.GetBlockByNumber(failNum + uint64(j)); block != nil {
|
||||
@ -1345,7 +1345,7 @@ func TestLargeReorgTrieGC(t *testing.T) {
|
||||
t.Fatalf("failed to insert shared chain: %v", err)
|
||||
}
|
||||
if _, err := chain.InsertChain(original); err != nil {
|
||||
t.Fatalf("failed to insert shared chain: %v", err)
|
||||
t.Fatalf("failed to insert original chain: %v", err)
|
||||
}
|
||||
// Ensure that the state associated with the forking point is pruned away
|
||||
if node, _ := chain.stateCache.TrieDB().Node(shared[len(shared)-1].Root()); node != nil {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user