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Limit GBT: fix candidate set inconsistency

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Mononaut 2024-01-07 17:57:36 +00:00
parent b10bd05207
commit 5411eb491f
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GPG key ID: A3F058E41374C04E
3 changed files with 28 additions and 17 deletions
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27
backend/src/api/mempool-blocks.ts
View file

@ -91,7 +91,7 @@ class MempoolBlocks {
// set missing short ids
for (const txid of transactions) {
const tx = newMempool[txid];
this.setUid(tx, false);
this.setUid(tx, !saveResults);
}
const accelerations = useAccelerations ? mempool.getAccelerations() : {};
@ -170,7 +170,7 @@ class MempoolBlocks {
for (const tx of addedAndChanged) {
this.setUid(tx, false);
}
const removedUids = removed.map(tx => this.getUid(tx)).filter(uid => uid != null) as number[];
const removedTxs = removed.filter(tx => tx.uid != null) as MempoolTransactionExtended[];
// prepare a stripped down version of the mempool with only the minimum necessary data
// to reduce the overhead of passing this data to the worker thread
@ -196,10 +196,10 @@ class MempoolBlocks {
});
this.txSelectionWorker?.once('error', reject);
});
this.txSelectionWorker.postMessage({ type: 'update', added: addedStripped, removed: removedUids });
this.txSelectionWorker.postMessage({ type: 'update', added: addedStripped, removed: removedTxs.map(tx => tx.uid) as number[] });
const { blocks, rates, clusters } = this.convertResultTxids(await workerResultPromise);
this.removeUids(removedUids);
this.removeUids(removedTxs);
// clean up thread error listener
this.txSelectionWorker?.removeListener('error', threadErrorListener);
@ -227,7 +227,7 @@ class MempoolBlocks {
const transactions = txids.map(txid => newMempool[txid]).filter(tx => tx != null);
// set missing short ids
for (const tx of transactions) {
this.setUid(tx, false);
this.setUid(tx, !saveResults);
}
// set short ids for transaction inputs
for (const tx of transactions) {
@ -237,6 +237,7 @@ class MempoolBlocks {
const accelerations = useAccelerations ? mempool.getAccelerations() : {};
const acceleratedList = accelerationPool ? Object.values(accelerations).filter(acc => newMempool[acc.txid] && acc.pools.includes(accelerationPool)) : Object.values(accelerations).filter(acc => newMempool[acc.txid]);
const convertedAccelerations = acceleratedList.map(acc => {
this.setUid(newMempool[acc.txid], true);
return {
uid: this.getUid(newMempool[acc.txid]),
delta: acc.feeDelta,
@ -292,11 +293,12 @@ class MempoolBlocks {
for (const tx of added) {
tx.inputs = tx.vin.map(v => this.getUid(newMempool[v.txid])).filter(uid => (uid !== null && uid !== undefined)) as number[];
}
const removedUids = removed.map(tx => this.getUid(tx)).filter(uid => (uid !== null && uid !== undefined)) as number[];
const removedTxs = removed.filter(tx => tx.uid != null) as MempoolTransactionExtended[];
const accelerations = useAccelerations ? mempool.getAccelerations() : {};
const acceleratedList = accelerationPool ? Object.values(accelerations).filter(acc => newMempool[acc.txid] && acc.pools.includes(accelerationPool)) : Object.values(accelerations).filter(acc => newMempool[acc.txid]);
const convertedAccelerations = acceleratedList.map(acc => {
this.setUid(newMempool[acc.txid], true);
return {
uid: this.getUid(newMempool[acc.txid]),
delta: acc.feeDelta,
@ -308,7 +310,7 @@ class MempoolBlocks {
const { blocks, blockWeights, rates, clusters, overflow } = this.convertNapiResultTxids(
await this.rustGbtGenerator.update(
added as RustThreadTransaction[],
removedUids,
removedTxs.map(tx => tx.uid) as number[],
convertedAccelerations as RustThreadAcceleration[],
this.nextUid,
),
@ -319,7 +321,7 @@ class MempoolBlocks {
throw new Error(`GBT returned wrong number of transactions ${transactions.length} vs ${resultMempoolSize}, cache is probably out of sync`);
} else {
const processed = this.processBlockTemplates(newMempool, blocks, blockWeights, rates, clusters, candidates, accelerations, accelerationPool, true);
this.removeUids(removedUids);
this.removeUids(removedTxs);
logger.debug(`RUST updateBlockTemplates completed in ${(Date.now() - start)/1000} seconds`);
return processed;
}
@ -522,9 +524,12 @@ class MempoolBlocks {
}
}
private removeUids(uids: number[]): void {
for (const uid of uids) {
this.uidMap.delete(uid);
private removeUids(txs: MempoolTransactionExtended[]): void {
for (const tx of txs) {
if (tx.uid != null) {
this.uidMap.delete(tx.uid);
tx.uid = undefined;
}
}
}

14
backend/src/api/mempool.ts
View file

@ -320,8 +320,6 @@ class Mempool {
}, 1000 * 60 * config.MEMPOOL.CLEAR_PROTECTION_MINUTES);
}
const candidates = await this.getNextCandidates(minFeeMempool, minFeeTip);
const deletedTransactions: MempoolTransactionExtended[] = [];
if (this.mempoolProtection !== 1) {
@ -341,6 +339,8 @@ class Mempool {
}
}
const candidates = await this.getNextCandidates(minFeeMempool, minFeeTip, deletedTransactions);
const newMempoolSize = currentMempoolSize + newTransactions.length - deletedTransactions.length;
const newTransactionsStripped = newTransactions.map((tx) => Common.stripTransaction(tx));
this.latestTransactions = newTransactionsStripped.concat(this.latestTransactions).slice(0, 6);
@ -445,8 +445,12 @@ class Mempool {
}
}
public async getNextCandidates(minFeeTransactions: string[], blockHeight: number): Promise<GbtCandidates | undefined> {
public async getNextCandidates(minFeeTransactions: string[], blockHeight: number, deletedTransactions: MempoolTransactionExtended[]): Promise<GbtCandidates | undefined> {
if (this.limitGBT) {
const deletedTxsMap = {};
for (const tx of deletedTransactions) {
deletedTxsMap[tx.txid] = tx;
}
const newCandidateTxMap = {};
for (const txid of minFeeTransactions) {
if (this.mempoolCache[txid]) {
@ -463,14 +467,16 @@ class Mempool {
} else {
for (const txid of Object.keys(this.mempoolCandidates)) {
if (!newCandidateTxMap[txid]) {
removed.push(this.mempoolCache[txid]);
if (this.mempoolCache[txid]) {
removed.push(this.mempoolCache[txid]);
this.mempoolCache[txid].effectiveFeePerVsize = this.mempoolCache[txid].adjustedFeePerVsize;
this.mempoolCache[txid].ancestors = [];
this.mempoolCache[txid].descendants = [];
this.mempoolCache[txid].bestDescendant = null;
this.mempoolCache[txid].cpfpChecked = false;
this.mempoolCache[txid].cpfpUpdated = undefined;
} else if (deletedTxsMap[txid]) {
removed.push(deletedTxsMap[txid]);
}
}
}

4
backend/src/api/websocket-handler.ts
View file

@ -750,7 +750,7 @@ class WebsocketHandler {
const _memPool = memPool.getMempool();
const candidateTxs = await memPool.getMempoolCandidates();
let candidates: GbtCandidates | undefined = (memPool.limitGBT && candidateTxs) ? { txs: candidateTxs, added: [], removed: [] } : undefined;
let transactionIds: string[] = (memPool.limitGBT && candidates) ? Object.keys(_memPool) : Object.keys(candidates?.txs || {});
let transactionIds: string[] = (memPool.limitGBT) ? Object.keys(candidates?.txs || {}) : Object.keys(_memPool);
const accelerations = Object.values(mempool.getAccelerations());
await accelerationRepository.$indexAccelerationsForBlock(block, accelerations, transactions);
@ -839,7 +839,7 @@ class WebsocketHandler {
if (memPool.limitGBT) {
const minFeeMempool = memPool.limitGBT ? await bitcoinSecondClient.getRawMemPool() : null;
const minFeeTip = memPool.limitGBT ? await bitcoinSecondClient.getBlockCount() : -1;
candidates = await memPool.getNextCandidates(minFeeMempool, minFeeTip);
candidates = await memPool.getNextCandidates(minFeeMempool, minFeeTip, transactions);
transactionIds = Object.keys(candidates?.txs || {});
} else {
candidates = undefined;