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Two-level incremental checkpoint recovery scheme for reducing system total overheads.

Huixian Li1, Liaojun Pang2, Zhangquan Wang3

  • 1School of Computer Science and Engineering, Northwestern Polytechnical University, Xi'an, China; Department of Computer Science, Wayne State University, Detroit, Michigan, United States of America.

Plos One
|August 12, 2014
PubMed
Summary

Introducing i-checkpoints into checkpoint recovery schemes significantly reduces overheads for long-running applications. This new model offers faster speeds and lower costs for handling probable failures, improving system efficiency.

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Area of Science:

  • Computer Science
  • Software Engineering
  • Reliability Engineering

Background:

  • Long-running applications are susceptible to failures, causing significant system overhead.
  • Existing two-level checkpoint recovery schemes involve costly memory transfers to stable storage.
  • Checkpointing overhead and re-computation time are critical factors impacting total system overheads.

Purpose of the Study:

  • To introduce a novel i-checkpoint model into the two-level checkpoint recovery scheme.
  • To reduce the cost and increase the speed of handling probable failures in long-running applications.
  • To provide a failure-distribution-independent scheme applicable to various scenarios.

Main Methods:

  • Developed a new model integrating i-checkpoints into the existing two-level checkpoint recovery scheme.
  • Analyzed the performance of the proposed two-level incremental checkpoint recovery scheme against the standard two-level scheme.
  • Utilized Weibull and exponential distributions to model failure patterns, fitting actual distributions.

Main Results:

  • The two-level incremental checkpoint recovery scheme demonstrates significantly lower checkpointing overheads.
  • The proposed scheme results in reduced total re-computation time.
  • Overall system overheads are substantially decreased with the i-checkpoint model.

Conclusions:

  • The i-checkpoint model offers a more efficient approach to checkpoint recovery for long-running applications.
  • This scheme provides a cost-effective and faster solution for managing probable failures.
  • The findings suggest a significant improvement in system reliability and performance.