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Archive script: Optimizations, bug fixes, stats logging
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| import { Logger } from 'winston' | ||
| import logger from '../../services/logger' | ||
| import _ from 'lodash' | ||
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| type SizeDurationJobStats = { | ||
| size: number | ||
| start: bigint | ||
| end: bigint | ||
| } | ||
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| type DownloadJobStats = SizeDurationJobStats | ||
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| type UploadJobStats = SizeDurationJobStats | ||
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| type CompressionJobStats = SizeDurationJobStats & { | ||
| sizeAfter: number | ||
| } | ||
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| export class StatsCollectingService { | ||
| private logger: Logger | ||
| private downloadJobsStats: DownloadJobStats[] = [] | ||
| private uploadJobsStats: UploadJobStats[] = [] | ||
| private compressionJobsStats: CompressionJobStats[] = [] | ||
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| constructor() { | ||
| this.logger = logger.child({ label: 'StatsCollectingService' }) | ||
| } | ||
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| public addDownloadJobStats(stats: DownloadJobStats): void { | ||
| this.downloadJobsStats.push(stats) | ||
| } | ||
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| public addUploadJobStats(stats: UploadJobStats): void { | ||
| this.uploadJobsStats.push(stats) | ||
| } | ||
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| public addCompressionJobStats(stats: CompressionJobStats): void { | ||
| this.compressionJobsStats.push(stats) | ||
| } | ||
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| // Convert time in miliseconds to an `HH:MM:SS.XX` string | ||
| private humanizeDuration(durationMs: number): string { | ||
| const hours = Math.floor(durationMs / 1000 / 60 / 60) | ||
| const minutes = Math.floor((durationMs / 1000 / 60) % 60) | ||
| const seconds = Math.floor((durationMs / 1000) % 60) | ||
| const miniseconds = Math.floor((durationMs % 1000) / 10) | ||
| return `${hours.toString().padStart(2, '0')}:${minutes.toString().padStart(2, '0')}:${seconds | ||
| .toString() | ||
| .padStart(2, '0')}.${miniseconds.toString().padStart(2, '0')}` | ||
| } | ||
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| private toMs(ns: bigint) { | ||
| return Number(ns / BigInt(1_000_000)) | ||
| } | ||
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| private countTotalDurationMs(source: SizeDurationJobStats[]): number { | ||
| if (source.length === 0) { | ||
| // Prevent division by 0 | ||
| return 1 | ||
| } | ||
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| // Because jobs are executed in parallel, we "merge" start/end times | ||
| // when they overlap. | ||
| const jobs = _.sortBy(source, (job) => job.start) | ||
| let mergedRange: [bigint, bigint] = [jobs[0].start, jobs[0].end] | ||
| const mergedRanges: [bigint, bigint][] = [] | ||
| for (const job of jobs) { | ||
| const start = job.start | ||
| const end = job.end | ||
| if (start <= mergedRange[1]) { | ||
| mergedRange[1] = end > mergedRange[1] ? end : mergedRange[1] | ||
| } else { | ||
| mergedRanges.push(mergedRange) | ||
| mergedRange = [start, end] | ||
| } | ||
| } | ||
| mergedRanges.push(mergedRange) | ||
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| return this.toMs(mergedRanges.reduce((a, b) => a + (b[1] - b[0]), BigInt(0))) | ||
| } | ||
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| private sizeDurationStats(source: SizeDurationJobStats[]): string { | ||
| const totalSize = source.reduce((a, b) => a + b.size, 0) | ||
| const totalDuration = this.countTotalDurationMs(source) | ||
| const numFiles = source.length | ||
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| const totalSizeGB = (totalSize / 1_000_000_000).toFixed(2) | ||
| const totalDurationH = this.humanizeDuration(totalDuration) | ||
| const MBps = (totalSize / 1_000_000 / (totalDuration / 1000)).toFixed(2) | ||
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| return `num_files=${numFiles}, total_size=${totalSizeGB}GB, total_duration=${totalDurationH}, avg_speed=${MBps}MB/s` | ||
| } | ||
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| public logDownloadSummary(): void { | ||
| this.logger.info(`Download summary: ${this.sizeDurationStats(this.downloadJobsStats)}`) | ||
| } | ||
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| public logUploadSummary(): void { | ||
| this.logger.info(`Upload summary: ${this.sizeDurationStats(this.uploadJobsStats)}`) | ||
| } | ||
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| public logCompressionSummary(): void { | ||
| const totalSizeBefore = this.compressionJobsStats.reduce((a, b) => a + b.size, 0) | ||
| const totalSizeAfter = this.compressionJobsStats.reduce((a, b) => a + b.sizeAfter, 0) | ||
| const totalSizeReduction = totalSizeBefore - totalSizeAfter | ||
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| const totalSizeAfterGB = (totalSizeAfter / 1_000_000_000).toFixed(2) | ||
| const reducitonPercentage = ((totalSizeReduction / totalSizeBefore) * 100).toFixed(2) | ||
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| this.logger.info( | ||
| `Compression summary: ${this.sizeDurationStats( | ||
| this.compressionJobsStats | ||
| )}, total_archives_size=${totalSizeAfterGB}GB, avg_size_reduction=${reducitonPercentage}%` | ||
| ) | ||
| } | ||
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| public logSummaries(): void { | ||
| this.logDownloadSummary() | ||
| this.logUploadSummary() | ||
| this.logCompressionSummary() | ||
| } | ||
| } |
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