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Improve transaction relaying logic:

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The existing logic involves every server sending every transaction
that it receives to all its peers (except the one that it received
a transaction from).

This commit instead uses a randomized algorithm, where a node will
randomly select peers to relay a given transaction to, caching the
list of transaction hashes that are not relayed and forwading them
to peers once every second. Peers can then determine whether there
are transactions that they have not seen and can request them from
the node which has them.

It is expected that this feature will further reduce the bandwidth
needed to operate a server.
This commit is contained in:
Gregory Tsipenyuk
2020-09-08 18:05:08 -04:00
committed by Nik Bougalis
parent 0d17dd8228
commit ea145d12c7
35 changed files with 1349 additions and 71 deletions
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14
src/ripple/protocol/jss.h
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@@ -570,6 +570,20 @@ JSS(tx_json); // in/out: TransactionSign
JSS(tx_signing_hash); // out: TransactionSign
JSS(tx_unsigned); // out: TransactionSign
JSS(txn_count); // out: NetworkOPs
JSS(txr_tx_cnt); // out: protocol message tx's count
JSS(txr_tx_sz); // out: protocol message tx's size
JSS(txr_have_txs_cnt); // out: protocol message have tx count
JSS(txr_have_txs_sz); // out: protocol message have tx size
JSS(txr_get_ledger_cnt); // out: protocol message get ledger count
JSS(txr_get_ledger_sz); // out: protocol message get ledger size
JSS(txr_ledger_data_cnt); // out: protocol message ledger data count
JSS(txr_ledger_data_sz); // out: protocol message ledger data size
JSS(txr_transactions_cnt); // out: protocol message get object count
JSS(txr_transactions_sz); // out: protocol message get object size
JSS(txr_selected_cnt); // out: selected peers count
JSS(txr_suppressed_cnt); // out: suppressed peers count
JSS(txr_not_enabled_cnt); // out: peers with tx reduce-relay disabled count
JSS(txr_missing_tx_freq); // out: missing tx frequency average
JSS(txs); // out: TxHistory
JSS(type); // in: AccountObjects
// out: NetworkOPs