Distributed storage-based filed delivery system and method using calculated dependencies between tasks to ensure consistancy of files

摘要

A distributed storage-based file delivery system and a distributed storage-based file delivery method are provided. The system comprises: a scheduling server; at least one source group, where each source group include a plurality of distributed file storage clusters, and each distributed file storage cluster include a plurality of data nodes. The scheduling server is configured to, according to operators of the distributed file storage clusters and load information of each data node, perform task scheduling based on a received task, and generate task instructions, where the task is received from a client or a data node. The data nodes to which the task instructions are directed are configured to execute the task and/or perform task distribution according to the task instructions, such that data within all distributed file storage clusters in a same source group remains synchronized.