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Add historicalLogsBlockRangeEndFactor config for aligned block ranges in eth_getLogs

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This commit is contained in:
Nabarun 2024-06-27 16:46:28 +05:30
parent d0f88756c3
commit 3cd6491305
3 changed files with 20 additions and 1 deletions
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5
packages/util/src/config.ts
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@ -29,6 +29,11 @@ export interface JobQueueConfig {
// Block range in which logs are fetched during historical blocks processing
historicalLogsBlockRange?: number;
// Factor to find the next multiple endBlock number when deciding eth_getLogs block range
// Used to fetch logs in aligned block ranges (paired with caching proxy server)
// If set to 0, historicalLogsBlockRange will be used to instead to decide block ranges
historicalLogsBlockRangeEndFactor?: number
// Max block range of historical processing after which it waits for completion of events processing
// If set to -1 historical processing does not wait for events processing and completes till latest canonical block
historicalMaxFetchAhead?: number;

6
packages/util/src/events.ts
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@ -152,6 +152,12 @@ export class EventWatcher {
endBlockNumber = Math.min(startBlockNumber + historicalMaxFetchAhead, endBlockNumber);
}
if (this._config.jobQueue.historicalLogsBlockRangeEndFactor) {
// Set endBlockNumber to a multiple lower than computed endBlockNumber (or canonical block)
// For using aligned block ranges
endBlockNumber = Math.floor(endBlockNumber / this._config.jobQueue.historicalLogsBlockRangeEndFactor) * this._config.jobQueue.historicalLogsBlockRangeEndFactor;
}
this._historicalProcessingEndBlockNumber = endBlockNumber;
log(`Starting historical block processing in batches from ${startBlockNumber} up to block ${this._historicalProcessingEndBlockNumber}`);

10
packages/util/src/job-runner.ts
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@ -252,7 +252,15 @@ export class JobRunner {
this._lastHistoricalProcessingEndBlockNumber = processingEndBlockNumber;
const logsBlockRange = this._jobQueueConfig.historicalLogsBlockRange ?? DEFAULT_HISTORICAL_LOGS_BLOCK_RANGE;
const endBlock = Math.min(startBlock + logsBlockRange, processingEndBlockNumber);
let rangeEndBlock = startBlock + logsBlockRange;
if (this._jobQueueConfig.historicalLogsBlockRangeEndFactor) {
// Set rangeEndBlock to the next multiple of historicalLogsBlockRangeEndFactor after startBlock number
// For using aligned block ranges
rangeEndBlock = Math.ceil(startBlock / this._jobQueueConfig.historicalLogsBlockRangeEndFactor) * this._jobQueueConfig.historicalLogsBlockRangeEndFactor;
}
const endBlock = Math.min(rangeEndBlock, processingEndBlockNumber);
log(`Processing historical blocks from ${startBlock} to ${endBlock}`);
const blocks = await fetchAndSaveFilteredLogsAndBlocks(