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| 1 : | camrdale | 117 | [[meta title="DebTorrent 0.1.6: Finally, Unique Piece Numbers"]] |
| 2 : | |||
| 3 : | I have uploaded a new version of [DebTorrent][10] to experimental and to | ||
| 4 : | my [personal repository][20]. This new version implements the [unique | ||
| 5 : | piece numbers][30], which has been planned for quite some time now. | ||
| 6 : | Well, it's finally here. | ||
| 7 : | |||
| 8 : | To summarize, unique piece numbers keep torrent's *alive* longer, by | ||
| 9 : | assigning files unique piece numbers that never get reused in that | ||
| 10 : | torrent. New files get new piece numbers added to the end, but peers in | ||
| 11 : | the old torrent can still share most of the old files with peers in the | ||
| 12 : | new torrent (in fact, it's the same torrent, but old and new peers have | ||
| 13 : | different ideas about what it contains). | ||
| 14 : | |||
| 15 : | The creation of torrents from Packages files has also changed, as now 2 | ||
| 16 : | torrents are created, one for whatever arch the Packages file was for, | ||
| 17 : | and one for the Architecture:all files. Since the Arch:all files are the | ||
| 18 : | same for all architectures, this also allows for more sharing of common | ||
| 19 : | files between peers on different architectures. This change required a | ||
| 20 : | change in the cache directories, which is described in more detail in | ||
| 21 : | the [NEWS file][40], but is handled almost automatically. The only thing | ||
| 22 : | to do is the make sure to do an `apt-get update` after upgrading so that | ||
| 23 : | the torrents can be restarted. | ||
| 24 : | |||
| 25 : | There was also some changes in the statistics reporting. In the client, | ||
| 26 : | the uploaded and downloaded statistics will now persist over restarts so | ||
| 27 : | that you can see how much you've done over a longer period. The [tracker | ||
| 28 : | status page][50] also got an update, and now shows the total uploaded | ||
| 29 : | and downloaded bytes for each torrent, as well as some more descriptive | ||
| 30 : | names for some of the torrents. | ||
| 31 : | |||
| 32 : | Due to the large changes in this release, I opted for uploading to | ||
| 33 : | experimental (and my repository) for now, so that it can be tested a | ||
| 34 : | bit. Please do test it, and let me know of any bugs, problems or | ||
| 35 : | concerns that you may have. | ||
| 36 : | |||
| 37 : | Here is the changelog: | ||
| 38 : | |||
| 39 : | * Add support for unique piece numbers | ||
| 40 : | - increases duration of oft-updated torrents so that more peers can | ||
| 41 : | participate | ||
| 42 : | - currently supported only by debian testing and unstable | ||
| 43 : | - see http://wiki.debian.org/DebTorrent/UniquePieces for more info | ||
| 44 : | * Switch to using 2 torrents per Packages file: one for architecture- | ||
| 45 : | specific files, and one for architecture-independent files | ||
| 46 : | - also added a new script split_cache_for_all to ease the upgrade | ||
| 47 : | * Use python-debian for all reading of RFC 822 type files | ||
| 48 : | - also requires python-apt | ||
| 49 : | * Add torrent names to the tracker display | ||
| 50 : | * Make the download/upload statistics persist over restarts | ||
| 51 : | * Report more and better statistics on the tracker's info page | ||
| 52 : | |||
| 53 : | [10]: http://debtorrent.alioth.debian.org/ | ||
| 54 : | [20]: http://debian.camrdale.org/ | ||
| 55 : | [30]: http://wiki.debian.org/DebTorrent/UniquePieces | ||
| 56 : | [40]: http://svn.debian.org/wsvn/debtorrent/debtorrent/tags/0.1.6/debian/NEWS?op=file&rev=0&sc=0 | ||
| 57 : | [50]: http://dttracker.debian.net:6969/ | ||
| 58 : | |||
| 59 : | [[tag debian]] |
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