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Distributed Checkpointing for Globally Consistent States of Databases

Son, Sang
Format
Report
Author
Son, Sang
Abstract
The goal of cheokpointing in database management systems is to save database states on a separate secure device so that the database can be recovered when errors and failures occur. Recently, the possibility of having a checkpointing mechanism which does not interfere with the transaction processing has been studied[4, 7]. Users are allowed to submit transactions while the checkpointing is in progress. and the transactions are performed in the system concurrently with the checkpointing process. This property of non-interference is highly desirable to real-time applications, where restricting transaction activity during the checkpointing operation is in many cases not feasible. In this paper. a new algorithm for checkpointing in distributed database systems is proposed and its correctness is proved. The practicality of the algorithm is discussed by analyzing the extra workload and the robustness of it with respect to site failures. Note: Abstract extracted from PDF file via OCR
Language
English
Date Received
2012-10-29
Published
University of Virginia, Department of Computer Science, 1986
Published Date
1986
Collection
Libra Open Repository
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