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author | Chocobozzz <me@florianbigard.com> | 2019-02-11 11:52:34 +0100 |
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committer | Chocobozzz <me@florianbigard.com> | 2019-02-11 11:52:34 +0100 |
commit | 88108880bbdba473cfe36ecbebc1c3c4f972e102 (patch) | |
tree | b242efb3b4f0d7e49d88f2d1f2063b5b3b0489c0 /support/doc/redundancy.md | |
parent | 53a94c7cfa8368da4cd248d65df8346905938f0c (diff) | |
parent | 9b712a2017e4ab3cf12cd6bd58278905520159d0 (diff) | |
download | PeerTube-88108880bbdba473cfe36ecbebc1c3c4f972e102.tar.gz PeerTube-88108880bbdba473cfe36ecbebc1c3c4f972e102.tar.zst PeerTube-88108880bbdba473cfe36ecbebc1c3c4f972e102.zip |
Merge branch 'develop' into pr/1217
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1 | # Redundancy | ||
2 | |||
3 | A PeerTube instance can cache other PeerTube videos to improve bandwidth of popular videos or small instances. | ||
4 | |||
5 | ## How it works | ||
6 | |||
7 | The instance administrator can choose between multiple redundancy strategies (cache trending videos or recently uploaded videos etc), set their maximum size and the minimum duplication lifetime. | ||
8 | Then, they choose the instances they want to cache in `Manage follows -> Following` admin table. | ||
9 | |||
10 | <p align="center"> | ||
11 | |||
12 | <img src="user/redundancy.png" alt="Redundancy" /> | ||
13 | |||
14 | </p> | ||
15 | |||
16 | Videos are kept in the cache for at least `min_lifetime`, and then evicted when the cache is full. | ||
17 | |||
18 | When PeerTube chooses a video to duplicate, it imports all the resolution files (to avoid consistency issues) using their magnet URI and put them in the `storage.videos` directory. | ||
19 | Then it sends a `Create -> CacheFile` ActivityPub message to other federated instances. This new instance is injected as [WebSeed](https://github.com/Chocobozzz/PeerTube/blob/develop/FAQ.md#what-is-webseed) in the magnet URI by instances that received this ActivityPub message. | ||
20 | |||
21 | ## Stats | ||
22 | |||
23 | See the `/api/v1/server/stats` endpoint. For example: | ||
24 | |||
25 | ``` | ||
26 | { | ||
27 | ... | ||
28 | "videosRedundancy": [ | ||
29 | { | ||
30 | "totalUsed": 0, | ||
31 | "totalVideos": 0, | ||
32 | "totalVideoFiles": 0, | ||
33 | "strategy": "most-views", | ||
34 | "totalSize": 104857600 | ||
35 | }, | ||
36 | { | ||
37 | "totalUsed": 0, | ||
38 | "totalVideos": 0, | ||
39 | "totalVideoFiles": 0, | ||
40 | "strategy": "trending", | ||
41 | "totalSize": 104857600 | ||
42 | }, | ||
43 | { | ||
44 | "totalUsed": 0, | ||
45 | "totalVideos": 0, | ||
46 | "totalVideoFiles": 0, | ||
47 | "strategy": "recently-added", | ||
48 | "totalSize": 104857600 | ||
49 | } | ||
50 | ] | ||
51 | } | ||
52 | ``` | ||