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Low-cost error containment and recovery for onboard guarded software upgrading and beyond

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5 Author(s)
Tai, A.T. ; IA Tech Inc., Los Angeles, CA, USA ; Tso, K.S. ; Alkalai, L. ; Chau, S.N.
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Message-driven confidence-driven (MDCD) error containment and recovery, a low-cost approach to mitigating the effect of software design faults in distributed embedded systems, is developed for onboard guarded software upgrading for deep-space missions. In this paper, we first describe and verify the MDCD algorithms in which we introduce the notion of "confidence-driven" to complement the "communication-induced" approach employed by a number of existing checkpointing protocols to achieve error containment and recovery efficiency. We then conduct a model-based analysis to show that the algorithms ensure low performance overhead. Finally, we discuss the advantages of the MDCD approach and its potential utility as a general-purpose, low-cost software fault tolerance technique for distributed embedded computing

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Computers, IEEE Transactions on  (Volume:51 ,  Issue: 2 )