Necessary and Sufficient Conditions for Consistent Global Snapshots
IEEE Transactions on Parallel and Distributed Systems
Time, clocks, and the ordering of events in a distributed system
Communications of the ACM
Checkpointing for Distributed Databases: Starting from the Basics
IEEE Transactions on Parallel and Distributed Systems
A Low-Cost Checkpointing Technique for Distributed Databases
Distributed and Parallel Databases
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Data checkpointing is an important problem of distributed database systems. Actually, transactions establish dependence relations on data checkpoints taken by data object managers. So, given an arbitrary set of data checkpoints (including at least a single data checkpoint from a data manager, and at most a data checkpoint from each data manager), an important question is the following one: "Can these data checkpoints be members of a same consistent global checkpoint?". This paper answers this question and proposes a non-intrusive data checkpointing protocol.