Distributed Database Checkpointing Extended Abstract

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 check-pointing protocol.