Provided are systems and methods for making a replication decision in a P2P VoD architecture. A system according to the present application may comprise a plurality of peers; a plurality of videos distributed over the peers; and a server maintaining a replication indicator for each of the plurality of videos. In the system, each of the peers reports a first piece of information regarding one or more first videos of the plurality of videos which are stored in the peer and a second piece of information regarding a second video of the plurality of videos which is required to be stored in the peer to the server when the peer does not have enough space for storing the second video. The server then determines, according to the first and second pieces of information and the replication indicators for the first and the second videos, whether the peer is to replace one of the first videos with the second video.
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机译：提供了用于在P 2 P VoD体系结构中进行复制决策的系统和方法。根据本申请的系统可以包括多个对等体。在同伴之间分发的多个视频;服务器保持多个视频中的每个视频的复制指示符。在该系统中，每个对等方报告与存储在对等方中的多个视频中的一个或多个第一视频有关的第一条信息，以及与多个视频中的第二个视频有关的第二条信息。当对等方没有足够的空间来存储第二个视频时，将其存储在服务器的对等方中。然后，服务器根据第一信息和第二信息以及第一视频和第二视频的复制指示符确定对等体是否要用第二视频替换第一视频中的一个。
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