| 摘要 |
<p>Methods and systems disclosed here implements a granular chunk-level peer-to-peer (p2p) file sharing system. File sharing at granular chunk-level avoid content duplication and thereby increases potential seeders in the peer-to-peer (p2p) overlay network. According to this innovation, chunks or pieces are uniquely identified, therefore, T racker does not need to know the name of the main file being shared. T racker maintains it's registry not at main file level, but at the granular level of chunks of the main file. Chunks of the main file are produced by a segmentation system with unique chunk identifications assigned and all chunks are separate individual files. The name of the main file to be shared is also not required for the T racker Announcement. T racker Announcements are made at the granular level of pieces or chunks of the main file. P2P Storage services, also known as Seeders, are also not required to know the name of the main file being shared. Seeders operate at the granular level of pieces or chunks of the main file and only know the existence of such chunks with them, and respond to queries at the chunk-level and transfer chunks. According to the present practise, the downloading program or system sends a query to a peer to check the existence of a chunk to download by providing both the name of the main file and the identification of the required chunk or byte range, but according to the innovation disclosed here, the downloading program or system sends only the identification of the required chunk. As per the innovation disclosed, the downloading system or the P2P Storage service, also known as the seeder, or also known as the caching daemon, does not reassemble the main file, it maintains the local cache at chunk-level. The systems are software programs designed and configured to offer services such as operate as a T racker and the P2P Storage service issue T racker Announcements, download chunks and Seeding according to the methods disclosed.</p> |
