Parallel Database Systems: The Future of High Performance ...
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Parallel Database Systems: The Future of High Performance ...
processing tasks. The success of these systems refutes a 1983 paper predicting
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processing tasks. The success of these systems refutes a 1983 paper predicting the demise of database machines [3]. Ten years ago the future of highly parallel database machines seemed gloomy, even to their staunchest advocates. Most
databasemachine researchhad focused on specialized, often trendy, hardware such as CCD memories, bubble memories, head-per-track disks, and optical disks. None of these technologies fulfilled their promises; so there was a sense that conventional CPUs , electronic RAM, and mcving-head magnetic disks would dominate the scene for many years to come. At that time, disk throughput was predicted to double while processor speeds were predicted to increase by much larger factors. Consequently, critics predicted that multiprocessor systems would scxm be I/O limited unless a solution to the I/O bottleneck was found. Whiie these predictions were fairly accurate about the future of hardware, the critics were certainly wrong about the overall future of parallel database systems. Over the last decade ‘Eradata, Tandem, and a host of startup companies have successfully developed and marketed highly parallel machines.
