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Method and appts. for real-time parallel delivery of segments of large payload file

A file and assembly file technology, applied in the file system, electrical components, advanced technology, etc., can solve problems such as the difficulty of locking the manager, and achieve the effect of reducing the amount of file storage

Inactive Publication Date: 2004-03-10
PRISMEDIA NETWORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to design a lock manager that can handle failover
Since the lock manager has to remember its clients, it can be a challenge to reconstruct the state before the failure

Method used

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  • Method and appts. for real-time parallel delivery of segments of large payload file
  • Method and appts. for real-time parallel delivery of segments of large payload file
  • Method and appts. for real-time parallel delivery of segments of large payload file

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Embodiment Construction

[0038] The present invention is directed to a method and system for storing and distributing large files. In particular, the present invention provides efficient architecture and techniques for processing, storing and serving files such as media content to users for educational, entertainment, commercial or any other purpose. According to the method, system and computer program product of the present invention, an advanced readable and writable comprehensive network file system which separates directory display and data storage is created. The method and system include partitioning, distribution and reassembly of files without significant delay in presenting content to a user. The invention also includes the creation of a comprehensive file system and the distribution of file system objects including volumes, directories and files.

[0039] One embodiment of the present invention provides an improved mechanism for partitioning and distributing files (referred to as "payloads"...

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PUM

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Abstract

A scalable content delivery network (SCDN) employs a parallel download mechanism to ensure that a demanded file is present at a station in time for user consumption. This mechanism is used in solving the content caching and storage problem for applications such as video-on-demand, which is commonly perceived as a tough problem in the industry. In the network, files are divided into smaller units called tracks according to the nature of data contained in each of them. Tracks are further divided into smaller equally sized units called block files. This division builds the foundation for parallel download. A sequence server provides a lock-free mechanism for multiple threads or processes to access data atomically. The sequence server allows clients to gain sequential access to data, or to find out whether the sequence has been violated so that they can retry their operation or take corrective action. Advantages of the invention include the ability to handle distribution of large files and process sequencing.

Description

technical field [0001] The present invention relates to a system and method for real-time parallel delivery of segments of large payload files. In particular, the present invention provides an efficient architecture and technique for storing and sending to remote users, for example, files containing media content such as audio, video and / or other data. Background technique [0002] Advances in telecommunications network communication and switching are advancing at a tremendous pace. However, transferring large files (eg, media content such as audio and / or video files) between locations remains a task that can take considerable time. For example, when delivering a large media file, such as a movie, to a user, the delivery time can be on the order of many minutes to hours before the file can begin to be used (eg, watched). [0003] One conventional technique for avoiding such delays in presenting media content to a user is to replicate copies of the content at various locati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30H04L29/06H04L29/08
CPCH04L67/101Y02B60/33G06F17/30067G06F17/30902H04L29/06088H04L29/08144H04L69/14H04L29/0818H04L67/1017H04L67/1002H04L29/08207G06F16/9574G06F16/10Y02D30/50H04L67/1001
Inventor D·C·-H·陈S·Y·辛R·塔库尔T·伊萨克森W·D·格罗普
Owner PRISMEDIA NETWORKS
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