distributed database

The Case for Determinism in Database Systems

Thomson, Alexander; Abadi, Daniel J.

Replication is a widely used method for achieving high availability in database systems. Due to the nondeterminism inherent in traditional concurrency control schemes, however, special care must be taken to ensure that replicas don’t
diverge. Log shipping, eager commit protocols, and lazy synchronization protocols are well-understood methods for
safely replicating databases, but each comes with its own cost in availability, performance, or consistency.
In this paper, we propose a distributed database system which combines a simple deadlock avoidance technique with


Building a database on S3

Brantner, Matthias; Florescu†, Daniela; Graf, David; Kossmann, Donald; Kraska, Tim

There has been a great deal of hype about Amazon’s simple storage
service (S3). S3 provides infinite scalability and high availability at
low cost. Currently, S3 is used mostly to store multi-media docu-
ments (videos, photos, audio) which are shared by a community of
people and rarely updated. The purpose of this paper is to demon-
strate the opportunities and limitations of using S3 as a storage sys-
tem for general-purpose database applications which involve small
objects and frequent updates. Read, write, and commit protocols

Syndicate content