Journal of Computer Science and Technology

, Volume 4, Issue 1, pp 29–34 | Cite as

A fault-tolerant file management algorithm in distributed computer system “THUDS”

  • Liao Xianzhi 
  • Kumar Perera 
  • Jin Lan 


A concurrent control with independent processes from simultaneous access to a critical section is discussed for the case where there are two distinct classes of processes known as readers and writers. The readers can share the file with one another, but the interleaved exccution with readers and writers may produce undesirable confliets. The file management algorithm proposed in this paper is the activity of avoiding these results. This algorithm not only guarantees the consistency and integrity of the shared file, but also supports optimal parallelism. The concept of dynamic virtual queue is introduced and serves the foundation for this algorithm. Our algorithm with its implicit redundancy allows software fault-tolerant technique.


Critical Section Request Message Mutual Exclusion Concurrency Control Atomic Action 
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

© Science Press, Beijing China and Allerton Press Inc. 1989

Authors and Affiliations

  • Liao Xianzhi 
    • 1
  • Kumar Perera 
    • 1
  • Jin Lan 
    • 1
  1. 1.Tsinghua UniversityBeijing

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