Survivable distributed storage with progressive decoding

  • Authors:
  • Yunghsiang S. Han;Soji Omiwade;Rong Zheng

  • Affiliations:
  • Graduate Institute of Communication Engineering, National Taipei University, Taiwan and Department of Computer Science and Information Engineering, National Chi Nan University, Taiwan;Department of Computer Science, University of Houston, Houston, TX;Department of Computer Science, University of Houston, Houston, TX

  • Venue:
  • INFOCOM'10 Proceedings of the 29th conference on Information communications
  • Year:
  • 2010

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Abstract

We propose a storage-optimal and computation efficient primitive to spread information from a single data source to a set of storage nodes, to allow recovery from both crash-stop and Byzantine failures. A progressive data retrieval scheme is employed, which retrieves minimal amount of data from live storage nodes. The scheme adapts the cost of successful data retrieval to the degree of errors in the system. Implementation and evaluation studies demonstrate comparable performance to that of a genie-aid decoding process.