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eth: send big transactions by announce/retrieve only (#27618)

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* eth: send big transactions by announce/retrieve only

* Update eth/handler.go

Co-authored-by: Martin Holst Swende <martin@swende.se>

* eth: remove superfluous bracket

* eth: add whitespace

---------

Co-authored-by: Martin Holst Swende <martin@swende.se>
This commit is contained in:
Marius van der Wijden 2023-06-28 11:06:20 +02:00 committed by GitHub
parent eed7983c7c
commit f5d3d486e4
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1 changed files with 10 additions and 1 deletions
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11
eth/handler.go
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@ -45,6 +45,11 @@ const (
// txChanSize is the size of channel listening to NewTxsEvent. // txChanSize is the size of channel listening to NewTxsEvent.
// The number is referenced from the size of tx pool. // The number is referenced from the size of tx pool.
txChanSize = 4096 txChanSize = 4096
// txMaxBroadcastSize is the max size of a transaction that will be broadcasted.
// All transactions with a higher size will be announced and need to be fetched
// by the peer.
txMaxBroadcastSize = 4096
) )
var ( var (
@ -564,8 +569,12 @@ func (h *handler) BroadcastTransactions(txs types.Transactions) {
// Broadcast transactions to a batch of peers not knowing about it // Broadcast transactions to a batch of peers not knowing about it
for _, tx := range txs { for _, tx := range txs {
peers := h.peers.peersWithoutTransaction(tx.Hash()) peers := h.peers.peersWithoutTransaction(tx.Hash())
var numDirect int
if tx.Size() <= txMaxBroadcastSize {
numDirect = int(math.Sqrt(float64(len(peers))))
}
// Send the tx unconditionally to a subset of our peers // Send the tx unconditionally to a subset of our peers
numDirect := int(math.Sqrt(float64(len(peers))))
for _, peer := range peers[:numDirect] { for _, peer := range peers[:numDirect] {
txset[peer] = append(txset[peer], tx.Hash()) txset[peer] = append(txset[peer], tx.Hash())
} }