UCT CS Research Document Archive

A Hybrid Distributed Architecture for Indexing

Nakashole, Ndapandula and Hussein Suleman (2009) A Hybrid Distributed Architecture for Indexing. In Proceedings 13th International Conference on European Digital Libraries (ECDL), Corfu, Greece.

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This paper presents a hybrid scavenger grid as an underlying hardware architecture for search services within digital libraries. The hybrid scavenger grid consists of both dedicated servers and dynamic resources in the form of idle workstations to handle medium- to large-scale search engine workloads. The dedicated resources are expected to have reliable and predictable behaviour. The dynamic resources are used opportunistically without any guarantees of availability. Test results confirmed that indexing performance is directly related to the size of the hybrid grid and intranet networking does not play a major role. A system-efficiency and cost-effectiveness comparison of a grid and a multiprocessor machine showed that for workloads of modest to large sizes, the grid architecture delivers better throughput per unit cost than the multiprocessor, at a system-efficiency that is comparable to that of the multiprocessor.

EPrint Type:Conference Paper
Keywords:hybrid grid architecture, indexing
ID Code:522
Deposited By:nakashole, ndapandula
Deposited On:08 June 2009