EH*RS: A High-Availability Scalable Distributed Data Structure

  • Xueping Ren
  • Xianghua Xu
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4494)


EH*RS is a new high-availability Scalable Distributed Data Structure (SDDS). The file structure and the search performance of EH*RS are basically these of EH*. It gets high availability based on record group and Reed-Salomon erasure correcting coding. EH*RS remains all data available despite the unavailability of any k ≥1servers by storing the additional information: the parity information. The value of k transparently grows with the file, to prevent the reliability decline. The storage overhead for the high-availability is small. The example shows that EH*RS file performs as expected. Finally, the scheme of EH*RS provides new perspectives to data-intensive applications (DBMSs), including the emerging ones of grids and of P2P computing.


Data Record File Size Storage Overhead Availability Level Record Group 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Xueping Ren
    • 1
  • Xianghua Xu
    • 1
  1. 1.Institute of Software and Intelligent Technology, Hangzhou Dianzi University, Hanghzhou, 310018China

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