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Load-leveling in fault-tolerant distributed computing systems

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2 Author(s)
Lalit M. Patnaik ; School of Automation, Indian Institute of Science, Bangalore 560012, India ; Kailasam Viswanathan Iyer

Assuming a horizontally distributed computing system, formulations of the edge-failure and node-failure recovery problems from the standpoint of load-leveling are presented. The conditions for the existence of solutions to these problems are examined and simple algorithms are proposed for these problems. In connection with the node-failure recovery problem, the concept of a node-failure metric to characterize different possible solutions is introduced, exploiting the notion of the strength of processors. A possible application of the recovery methods in the context of reconfiguration of distributed database systems is suggested.

Published in:

IEEE Transactions on Software Engineering  (Volume:SE-12 ,  Issue: 4 )