Kaune, Sebastian and Rumin, Ruben Cuevas and Tyson, Gareth and Mauthe, Andreas and Guerrero, Carmen and Steinmetz, Ralf (2010) Unraveling BitTorrent’s File Unavailability:Measurements and Analysis. In: IEEE Tenth International Conference on Peer-to-Peer Computing (P2P), 2010. IEEE, pp. 1-9. ISBN 978-1-4244-7140-9
Full text not available from this repository.Abstract
BitTorrent suffers from one fundamental problem: the long-term availability of content. This occurs on a massive-scale with 38% of torrents becoming unavailable within the first month. In this paper we explore this problem by performing two large-scale measurement studies including 46K torrents and 29M users. The studies go significantly beyond any previous work by combining per-node, per-torrent and system-wide observations to ascertain the causes, characteristics and repercussions of file unavailability. The study confirms the conclusion from previous works that seeders have a significant impact on both performance and availability. However, we also present some crucial new findings: (i) the presence of seeders is not the sole factor involved in file availability, (ii) 23.5% of nodes that operate in seedless torrents can finish their downloads, and (iii) BitTorrent availability is discontinuous, operating in cycles of temporary unavailability.
| Item Type: | Contribution in Book/Report/Proceedings |
|---|---|
| Subjects: | Q Science > QA Mathematics > QA75 Electronic computers. Computer science |
| Departments: | Faculty of Science and Technology > School of Computing & Communications |
| ID Code: | 42498 |
| Deposited By: | ep_importer_comp |
| Deposited On: | 29 Jun 2010 13:19 |
| Refereed?: | No |
| Published?: | Published |
| Last Modified: | 26 Jul 2012 23:27 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/42498 |
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