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Transparent fault-tolerant Java virtual machine

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2 Author(s)
Friedman, R. ; Dept. of Comput. Sci., Technion-Israel Inst. of Technol., Haifa, Israel ; Kama, A.

Replication is one of the prominent approaches for obtaining fault tolerance. Implementing replication on commodity hardware and in a transparent fashion, i.e., without changing the programming model, has many challenges. Deciding at what level to implement the replication has ramifications on development costs and portability of the programs. Other difficulties lie in the coordination of the copies in the face of non-determinism. We report on an implementation of transparent fault tolerance at the virtual machine level of Java. We describe the design of the system and present performance results that in certain cases are equivalent to those of non-replicated executions. We also discuss design decisions stemming from implementing replication at the virtual machine level, and the special considerations necessary in order to support symmetric multi-processors (SMP).

Published in:

Reliable Distributed Systems, 2003. Proceedings. 22nd International Symposium on

Date of Conference:

6-18 Oct. 2003