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Home » The Design and Implementation of the Warp Transactional Filesystem
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The Design and Implementation of the Warp Transactional Filesystem

Authors: 

Robert Escriva and Emin Gün Sirer, Cornell University

Abstract: 

This paper introduces the Warp Transactional Filesystem (WTF), a novel, transactional, POSIX-compatible filesystem based on a new file slicing API that enables efficient zero-copy file transformations. WTF provides transactional access spanning multiple files in a distributed filesystem. Further, the file slicing API enables applications to construct files from the contents of other files without having to rewrite or relocate data. Combined, these enable a new class of high-performance applications. Experiments show that WTF can qualitatively outperform the industry-standard HDFS distributed filesystem, up to a factor of four in a sorting benchmark, by reducing I/O costs. Microbenchmarks indicate that the new features of WTF impose only a modest overhead on top of the POSIX-compatible API.

Robert Escriva, Cornell University

Emin Gün Sirer, Cornell University

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