Parallel database systems have to support both inter-transaction as well as intra-transaction parallelism. Inter-transaction parallelism (multi-user mode) is required to achieve high throughput, in particular for OLTP transactions, and sufficient cost-effectiveness. Intra-transaction parallelism is a prerequisite for reducing the response time of complex and data-intensive transactions (queries...

A reasonable end-to-end reliability guarantee for three-tier systems, called e-Transaction (exactly-once Transaction), has been recently proposed. This work presents a lightweight e-Transaction protocol for centralized back-end database. Our protocol does not require coordination among the replicas of the application server and does not rely on any assumption for what concerns the processing or...

Atomic transactions are now a familiar paradigm for distributed programming and have been provided in a number of object-oriented languages. Much e ort has also been expended on developing open transaction processing systems which support distributed transactions involving multivendor database systems. This paper addresses a number of issues that arise in combining objectoriented distributed pr...

The basic transaction model has evolved over time to incorporate more complex transaction structures and to selectively modify the atomicity and isolation properties In this chapter we discuss the application of transaction concepts to activities that involve coordinated execution of multiple tasks possibly of di erent types over di erent processing entities Such applications are referred to as...

In this paper, we present a mechanism to specify and to validate consistency constraints in object oriented databases. Constraints are speciied using pre and post-conditions associated with an exception handling mechanism. During transaction run-time, we treat exceptions corresponding to errors (in this case, we use immediate exceptions which are processed immediately) or presumption of errors ...

Transaction processing is a mission critical enterprise application that runs on high-end servers. Traditionally, transaction processing systems have been designed for uniform coreto-core communication latencies. In the past decade, with the emergence of multisocket multicores, for the first timewe have Islands, i.e., groups of cores that communicate fast among themselves and slower with other ...