Recently, several strategies have been proposed for transaction processing in partitioned
distributed database systems with replicated data. These strategies are surveyed in light of …

I am pleased to announce the free on-line availability of the book" Concurrency Control and
Recovery in Database Systems," by Philip A. Bernstein, Vassos Hadzilacos, and Nathan …

The first edition of this book appeared in 1991 when the technology was new and there were
not too many products. In the Preface to the first edition, we had quoted Michael Stonebraker …

One of the potential benefits of distributed systems is their use in providing highly-available
services that are likely to be usable when needed. Availabilay is achieved through …

For over forty years, relational databases have been the leading model for data storage,
retrieval and management. However, due to increasing needs for scalability and …

A new protocol for maintaining replicated data that can provide both high data availability
and low response time is presented. In the protocol, the nodes are organized in a logical …

In this paper, we present a low-cost fault-tolerant protocol for managing replicated data. We
impose a logical tree structure on the set of copies of an object and develop a protocol that …

In a one-copy distributed database, each data item is stored at exactly one site. In a
replicated database, some data items may be stored at multiple sites. The main motivation is …

This paper describes a new algorithm for managing replicated data. The standard quorum
consensus method is an expensive means of maintaining consistency across multiple …

In a replicated database, a data item may have copies residing on several sites. A replica
control protocol is necessary to ensure that data items with several copies behave as if they …