![]() Torrent files contain information like the file list, sizes, pieces, etc. "Hash" is the shorter form of the word " hashsum". torrent file that the client uses to verify the data that is being transferred. Hash The hash is a digital fingerprint in the form of a string of alphanumeric characters (typically hexadecimal) in the. Grab A torrent is grabbed when its metadata files have been downloaded. Freeleech Freeleech means that the download size of the torrent does not count towards your overall ratio, only the uploaded amount on the torrent counts toward your ratio. a torrent is said to contain a video, but it contains only a snapshot of a moment in the video, or in some cases malware). Fake A fake torrent is a torrent that does not contain what is specified in its name or description (e.g. Upon receiving the last pieces a cancel request command is sent to other peers. In order to prevent the last pieces becoming unobtainable, BitTorrent clients attempt to get the last missing pieces from all of its peers. This is because the faster and more easily accessible pieces should have already been obtained. In typical client operation the last download pieces arrive more slowly than the others. Endgame / Endgame mode Any applied algorithm for downloading the last few pieces (see below) of a torrent. Bram prefers downloader to leech because BitTorrent's tit-for-tat ensures downloaders also upload and thus do not fairly qualify as leeches. This term, used in Bram Cohen's Python implementation, lacks the negative connotation attributed to leech. Downloader A downloader is any peer that does not have the entire file and is downloading the file. ![]() Distributed Hash Table Distributed Hash Tables (DHT) are used in Bittorrent for peers to send a list of other seeds/peers in the swarm for a particular torrent directly to a client without the need for a tracker. The second client has been blacklisted for being abusive or is using a blacklisted BitTorrent client.Ĭlient The program that enables peer-to-peer file sharing via the BitTorrent protocol.The client is already uploading at its full capacity (it has reached the value of max_uploads).The second client is a seed, in which case it does not want any pieces (i.e., it is completely uninterested).A client chokes another client in several situations: Choked Describes a peer to which the client refuses to send file pieces. So if the availability is 2.6, the distributed copies will be 1.6 because it is only counting the additional "copies" of the file. Sometimes "distributed copies" is considered to be "availability minus 1". Even though 3 peers have pieces 4 and 5, it does not further increase the availability. The fractional part is 6/10 because more than one peer has pieces 2 to 7 (6 pieces) and there are 10 total pieces. The integer part is 1 because 1 is the lowest piece availability. The entire torrent has availability 1.6 (1 + 6/10). Example: There are 10 pieces, Peer A has pieces 0 to 5, Peer B has 2 to 7, and Peer C has 4 to 9. The availability of the entire torrent is defined as the nonnegative real number whose integer part is the minimum piece availability and whose fractional part is the fraction of pieces that have higher availability than the minimum piece availability. ![]() Availability (Also known as distributed copies.) The availability of each piece in the torrent is defined as the number of peers who have a copy of that piece. ![]()
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