Transaction execution in grid database

Abstract

The Grid initiative provides an infrastructure for distributed computation among widely distributed high-performance computers. This will allow for exchanging and processing very large amounts of data. There are a huge number of applications that are geographically distributed such as multi-point radio facility for astrophysics, space physics, atmospheric physics, and radio research, utilizing very high performance Grid Computing. It is expected that similar applications to become important in commercial settings, initially for scientific and technical computing applications and then for commercial distributed computing applications, including enterprise application integration and business to business (B2B) partner collaboration over the Internet. Just as the World Wide Web began as a technology for scientific collaboration and was adopted for e-business, it is expected a similar trajectory for Grid technologies. Database grid has been an important direction in Grid Computing that adds lots of features and new challenges in many different areas: Distributed Data Replication in Grid Computing, Grid Database Services, Grid Database Access and Integration, security in Database Grid, etc… For this a high-performance distributed data manager should be developed that allows very efficient execution of database queries involving numerical and other data. Even though very high performance is attained by utilizing many main-memory database engines running on PCs and connected through the Grid [13] but this is not enough. A new protocol for distributed transaction should be formed, that can be suitable for parallel and distributed execution in a Grid environment. This protocol should aim at achieving higher concurrency of multiple transactions. It will be also very suitable for concurrent execution of long transactions.