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The Chameleon infrastructure for adaptive, software implemented fault tolerance

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4 Author(s)
S. Bagchi ; Center for Reliable & High Performance Comput., Illinois Univ., Urbana, IL, USA ; K. Whisnant ; Z. Kalbarczyk ; R. K. Iyer

This paper presents Chameleon, an adaptive software infrastructure for supporting different levels of availability requirements in a heterogeneous networked environment. Chameleon provides dependability through the use of ARMORs-Adaptive, Reconfigurable, and Mobile Objects for Reliability. Three broad classes of ARMORs are defined: Managers, Daemons, and Common ARMORs. Key concepts that support adaptive fault tolerance include the construction of fault tolerance execution strategies from a comprehensive set of ARMORs, the creation of ARMORs from a library of reusable basic building blocks, the dynamic adaptation to changing fault tolerance requirements, and the ability to detect and recover from errors in applications and in ARMORs

Published in:

Reliable Distributed Systems, 1998. Proceedings. Seventeenth IEEE Symposium on

Date of Conference:

20-23 Oct 1998