REDUCING LATENCY AND COST IN RESILIENT CLOUD FILE SYSTEMS

摘要

Various exemplary embodiments relate to a method of storing a file block in a cloud system including a plurality of data centers. The method may include: receiving the file block from a client; generating a plurality of chunks from the file block, wherein each chunk is smaller than the file block and the file block may be reconstructed from a subset of the chunks; distributing each chunk to one of the plurality of data centers; and storing the file block in a cache. Various exemplary embodiments relate to a cloud system for storing files. The system may include a plurality of data centers including a primary data center. The primary data center may include: a cache configured to store at least one complete file block; a chunk storage configured to store a chunk for each of a plurality of file blocks; a file encoder; and a file decoder.

主权项

1. A method of storing a file in a cloud system including a plurality of data centers, the method comprising:
receiving, at a first data center, a file block from a client; generating a plurality of chunks from the file block, wherein each chunk is smaller than the file block, and the file block may be reconstructed from a subset of the chunks; distributing the plurality of chunks to at least two of the plurality of data centers; wherein at least a first chunk and a second chunk of the plurality of chunks are distributed to different ones of the plurality of data centers; and initiating storage of the file block in a cache at the first data center.