Meta-Brokering Solutions for Expanding Grid Middleware Limitations

Grid Resource Management tools evolved from manual discovery and task submission to sophisticated brokering solutions. User requirements created certain properties that resource managers have learned to support. This development is still continuing, and users already need to stress themselves to distinguish brokers and migrate their applications when they move to a different grid. Moreover, grid interoperability have emerged the need for higher level brokering services. This paper introduces a meta-brokering approach that means a higher level resource management by enabling automatic and simultaneous utilization of Grid Brokers. First we gather the requirements of this novel middleware service then define a general meta-brokering architecture. Finally we show how meta-brokers can be implemented in different grid environments and we conclude with their evaluations.