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c48e82b5 | 1 | import { AbstractScheduler } from './abstract-scheduler' |
e5565833 | 2 | import { CONFIG, JOB_TTL, REDUNDANCY } from '../../initializers' |
c48e82b5 | 3 | import { logger } from '../../helpers/logger' |
e5565833 | 4 | import { VideosRedundancy } from '../../../shared/models/redundancy' |
c48e82b5 C |
5 | import { VideoRedundancyModel } from '../../models/redundancy/video-redundancy' |
6 | import { VideoFileModel } from '../../models/video/video-file' | |
c48e82b5 C |
7 | import { downloadWebTorrentVideo } from '../../helpers/webtorrent' |
8 | import { join } from 'path' | |
9 | import { rename } from 'fs-extra' | |
10 | import { getServerActor } from '../../helpers/utils' | |
11 | import { sendCreateCacheFile, sendUpdateCacheFile } from '../activitypub/send' | |
12 | import { VideoModel } from '../../models/video/video' | |
13 | import { getVideoCacheFileActivityPubUrl } from '../activitypub/url' | |
c48e82b5 | 14 | import { isTestInstance } from '../../helpers/core-utils' |
e5565833 | 15 | import { removeVideoRedundancy } from '../redundancy' |
c48e82b5 C |
16 | |
17 | export class VideosRedundancyScheduler extends AbstractScheduler { | |
18 | ||
19 | private static instance: AbstractScheduler | |
20 | private executing = false | |
21 | ||
f9f899b9 | 22 | protected schedulerIntervalMs = CONFIG.REDUNDANCY.VIDEOS.CHECK_INTERVAL |
c48e82b5 C |
23 | |
24 | private constructor () { | |
25 | super() | |
26 | } | |
27 | ||
28 | async execute () { | |
29 | if (this.executing) return | |
30 | ||
31 | this.executing = true | |
32 | ||
d9bdd007 | 33 | for (const obj of CONFIG.REDUNDANCY.VIDEOS.STRATEGIES) { |
e5565833 | 34 | logger.info('Running redundancy scheduler for strategy %s.', obj.strategy) |
1cfa8d68 | 35 | |
c48e82b5 | 36 | try { |
3f6b6a56 | 37 | const videoToDuplicate = await this.findVideoToDuplicate(obj) |
c48e82b5 C |
38 | if (!videoToDuplicate) continue |
39 | ||
40 | const videoFiles = videoToDuplicate.VideoFiles | |
41 | videoFiles.forEach(f => f.Video = videoToDuplicate) | |
42 | ||
e5565833 C |
43 | await this.purgeCacheIfNeeded(obj, videoFiles) |
44 | ||
45 | if (await this.isTooHeavy(obj, videoFiles)) { | |
46 | logger.info('Video %s is too big for our cache, skipping.', videoToDuplicate.url) | |
c48e82b5 C |
47 | continue |
48 | } | |
49 | ||
50 | logger.info('Will duplicate video %s in redundancy scheduler "%s".', videoToDuplicate.url, obj.strategy) | |
51 | ||
e5565833 | 52 | await this.createVideoRedundancy(obj, videoFiles) |
c48e82b5 C |
53 | } catch (err) { |
54 | logger.error('Cannot run videos redundancy %s.', obj.strategy, { err }) | |
55 | } | |
56 | } | |
57 | ||
e5565833 C |
58 | await this.extendsLocalExpiration() |
59 | ||
60 | await this.purgeRemoteExpired() | |
f9f899b9 C |
61 | |
62 | this.executing = false | |
63 | } | |
64 | ||
65 | static get Instance () { | |
66 | return this.instance || (this.instance = new this()) | |
67 | } | |
68 | ||
e5565833 C |
69 | private async extendsLocalExpiration () { |
70 | const expired = await VideoRedundancyModel.listLocalExpired() | |
71 | ||
72 | for (const redundancyModel of expired) { | |
73 | try { | |
74 | const redundancy = CONFIG.REDUNDANCY.VIDEOS.STRATEGIES.find(s => s.strategy === redundancyModel.strategy) | |
75 | await this.extendsExpirationOf(redundancyModel, redundancy.minLifetime) | |
76 | } catch (err) { | |
77 | logger.error('Cannot extend expiration of %s video from our redundancy system.', this.buildEntryLogId(redundancyModel)) | |
78 | } | |
79 | } | |
80 | } | |
c48e82b5 | 81 | |
e5565833 C |
82 | private async purgeRemoteExpired () { |
83 | const expired = await VideoRedundancyModel.listRemoteExpired() | |
c48e82b5 | 84 | |
e5565833 | 85 | for (const redundancyModel of expired) { |
c48e82b5 | 86 | try { |
e5565833 | 87 | await removeVideoRedundancy(redundancyModel) |
c48e82b5 | 88 | } catch (err) { |
e5565833 | 89 | logger.error('Cannot remove redundancy %s from our redundancy system.', this.buildEntryLogId(redundancyModel)) |
c48e82b5 C |
90 | } |
91 | } | |
c48e82b5 C |
92 | } |
93 | ||
3f6b6a56 C |
94 | private findVideoToDuplicate (cache: VideosRedundancy) { |
95 | if (cache.strategy === 'most-views') { | |
96 | return VideoRedundancyModel.findMostViewToDuplicate(REDUNDANCY.VIDEOS.RANDOMIZED_FACTOR) | |
97 | } | |
98 | ||
99 | if (cache.strategy === 'trending') { | |
100 | return VideoRedundancyModel.findTrendingToDuplicate(REDUNDANCY.VIDEOS.RANDOMIZED_FACTOR) | |
101 | } | |
b36f41ca | 102 | |
3f6b6a56 | 103 | if (cache.strategy === 'recently-added') { |
7348b1fd | 104 | const minViews = cache.minViews |
3f6b6a56 C |
105 | return VideoRedundancyModel.findRecentlyAddedToDuplicate(REDUNDANCY.VIDEOS.RANDOMIZED_FACTOR, minViews) |
106 | } | |
c48e82b5 C |
107 | } |
108 | ||
e5565833 | 109 | private async createVideoRedundancy (redundancy: VideosRedundancy, filesToDuplicate: VideoFileModel[]) { |
c48e82b5 C |
110 | const serverActor = await getServerActor() |
111 | ||
112 | for (const file of filesToDuplicate) { | |
113 | const existing = await VideoRedundancyModel.loadByFileId(file.id) | |
114 | if (existing) { | |
e5565833 | 115 | await this.extendsExpirationOf(existing, redundancy.minLifetime) |
c48e82b5 | 116 | |
c48e82b5 C |
117 | continue |
118 | } | |
119 | ||
120 | // We need more attributes and check if the video still exists | |
121 | const video = await VideoModel.loadAndPopulateAccountAndServerAndTags(file.Video.id) | |
122 | if (!video) continue | |
123 | ||
e5565833 | 124 | logger.info('Duplicating %s - %d in videos redundancy with "%s" strategy.', video.url, file.resolution, redundancy.strategy) |
c48e82b5 C |
125 | |
126 | const { baseUrlHttp, baseUrlWs } = video.getBaseUrls() | |
127 | const magnetUri = video.generateMagnetUri(file, baseUrlHttp, baseUrlWs) | |
128 | ||
129 | const tmpPath = await downloadWebTorrentVideo({ magnetUri }, JOB_TTL['video-import']) | |
130 | ||
131 | const destPath = join(CONFIG.STORAGE.VIDEOS_DIR, video.getVideoFilename(file)) | |
132 | await rename(tmpPath, destPath) | |
133 | ||
134 | const createdModel = await VideoRedundancyModel.create({ | |
e5565833 | 135 | expiresOn: this.buildNewExpiration(redundancy.minLifetime), |
c48e82b5 C |
136 | url: getVideoCacheFileActivityPubUrl(file), |
137 | fileUrl: video.getVideoFileUrl(file, CONFIG.WEBSERVER.URL), | |
e5565833 | 138 | strategy: redundancy.strategy, |
c48e82b5 C |
139 | videoFileId: file.id, |
140 | actorId: serverActor.id | |
141 | }) | |
142 | createdModel.VideoFile = file | |
143 | ||
144 | await sendCreateCacheFile(serverActor, createdModel) | |
145 | } | |
146 | } | |
147 | ||
e5565833 C |
148 | private async extendsExpirationOf (redundancy: VideoRedundancyModel, expiresAfterMs: number) { |
149 | logger.info('Extending expiration of %s.', redundancy.url) | |
150 | ||
151 | const serverActor = await getServerActor() | |
152 | ||
153 | redundancy.expiresOn = this.buildNewExpiration(expiresAfterMs) | |
154 | await redundancy.save() | |
155 | ||
156 | await sendUpdateCacheFile(serverActor, redundancy) | |
157 | } | |
158 | ||
159 | private async purgeCacheIfNeeded (redundancy: VideosRedundancy, filesToDuplicate: VideoFileModel[]) { | |
160 | while (this.isTooHeavy(redundancy, filesToDuplicate)) { | |
161 | const toDelete = await VideoRedundancyModel.loadOldestLocalThatAlreadyExpired(redundancy.strategy, redundancy.minLifetime) | |
162 | if (!toDelete) return | |
163 | ||
164 | await removeVideoRedundancy(toDelete) | |
165 | } | |
166 | } | |
167 | ||
168 | private async isTooHeavy (redundancy: VideosRedundancy, filesToDuplicate: VideoFileModel[]) { | |
169 | const maxSize = redundancy.size - this.getTotalFileSizes(filesToDuplicate) | |
c48e82b5 | 170 | |
e5565833 | 171 | const totalDuplicated = await VideoRedundancyModel.getTotalDuplicated(redundancy.strategy) |
c48e82b5 C |
172 | |
173 | return totalDuplicated > maxSize | |
174 | } | |
175 | ||
e5565833 C |
176 | private buildNewExpiration (expiresAfterMs: number) { |
177 | return new Date(Date.now() + expiresAfterMs) | |
c48e82b5 C |
178 | } |
179 | ||
180 | private buildEntryLogId (object: VideoRedundancyModel) { | |
181 | return `${object.VideoFile.Video.url}-${object.VideoFile.resolution}` | |
182 | } | |
183 | ||
184 | private getTotalFileSizes (files: VideoFileModel[]) { | |
185 | const fileReducer = (previous: number, current: VideoFileModel) => previous + current.size | |
186 | ||
187 | return files.reduce(fileReducer, 0) | |
188 | } | |
189 | } |