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GlobalFS: A Strongly Consistent Multi-Site File System

Leandro Pacheco, Raluca Halalai, Valerio Schiavoni, Fernando Pedone, Etienne Rivière & Pascal Felber

Résumé This paper introduces GlobalFS, a POSIX-compliant geographically distributed file system. GlobalFS builds on two fundamental building blocks, an atomic multicast group communication abstraction and multiple instances of a single-site data store. We define four execution modes and show how all file system operations can be implemented with these modes while ensuring strong consistency and tolerating failures. We describe the GlobalFS prototype in detail and report on an extensive performance assessment. We have deployed GlobalFS across all EC2 regions and show that the system scales geographically, providing performance comparable to other state-of-the-art distributed file systems for local commands and allowing for strongly consistent operations over the whole system. The code of GlobalFS is available as open source.
   
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Citation L. Pacheco, et al., "GlobalFS: A Strongly Consistent Multi-Site File System," in 35th Symposium on Reliable Distributed Systems (SRDS), Budapest, Hungary, 2016.
   
Type Actes de congrès (Anglais)
Nom de la conférence 35th Symposium on Reliable Distributed Systems (SRDS) (Budapest, Hungary)
Date de la conférence 26-9-2016
Editeur commercial IEEE
URL http://www.inf.usi.ch/faculty/pedone/Paper/2016/2016Globa...