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Message logging and recovery in wireless CORBA using access bridge

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2 Author(s)
Xinyu Chen ; Dept. of Comput. Sci. & Eng., Chinese Univ. of Hong Kong, China ; M. R. Lyu

The emerging mobile wireless environment poses exciting challenges for distributed fault tolerant (FT) computing. This paper proposes a message logging and recovery protocol on the top of Telecom Wireless CORBA and FT-CORBA architectures. It uses the storage available at the access bridge as the stable storage to log messages and checkpoints on behalf of a mobile host. Our approach engages both quasi-sender-based and receiver-based logging methods and makes seamless handoff in the presence of failures. The details of how to tolerate mobile host disconnection, mobile host crash and access bridge crash are described. The normalized execution time of a mobile host engaging our proposed scheme and the handoff effect are evaluated.

Published in:

Autonomous Decentralized Systems, 2003. ISADS 2003. The Sixth International Symposium on

Date of Conference:

9-11 April 2003