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Distributed and Parallel Databases
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Coordinator log transaction execution protocol

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Abstract

The coordinator log transaction execution protocol proposed in this paper centralizes logging on a per transaction basis and exploits piggybacking to provide the semantics of a distributed atomic commit at a minimal cost. The protocol eliminates two rounds of messages (one phase) from the presumed commit protocol and dramatically reduces the number of log forces needed for distributed atomic commit. We compare the coordinator log transaction execution protocol to existing protocols, explain when it is desirable, and discuss how it affects the write ahead log protocol and the database crash recovery algorithm. © 1993 Kluwer Academic Publishers.

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Distributed and Parallel Databases

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