Efficient Locally Trackable Deduplication in Replicated Systems
2009
We propose a novel technique for distributed data deduplication in distributed storage systems. We combine version tracking with high-precision, local similarity detection techniques. When compared with the prominent techniques of delta encoding and compare-by-hash, our solution borrows most advantages that distinguish each such alternative. A thorough experimental evaluation, comparing a full-fledged implementation of our technique against popular systems based on delta encoding and compare-by-hash, confirms gains in performance and transferred volumes for a wide range of real workloads and scenarios.
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