ON THE FLY STATISTICAL DELTA DIFFERENCING ENGINE

摘要

A method, an apparatus, and a computer program product for accelerating network data transfer are provided. A first file is received at a source node and transferred to a destination node. A second file is received at the source node, and a determination is made whether the second file is a modified version of the first file. A fingerprint map (FM) of fingerprints for representing a file is received at the source node. Thereupon, the source node generates data representing a difference between the FM and the second file, which data is sufficient along with the first file to reproduce the second file. The data is transmitted to the destination node.

主权项

1. An apparatus for file transfers, comprising:
a memory having a first file stored therein; and a processor coupled to the memory and configured to create, in response to receiving a second file, a first fingerprint map (FM) corresponding to the first file; and generate, using the second file and the first FM, data representing a difference between the first file and the second file, wherein the data and the first file are sufficient to generate the second file.