Offering a Precision-Performance Tradeoff for Aggregation Queries over Replicated Data

@inproceedings{Olston2000OfferingAP,
  title={Offering a Precision-Performance Tradeoff for Aggregation Queries over Replicated Data},
  author={Christopher Olston and Jennifer Widom},
  booktitle={VLDB},
  year={2000}
}
Strict consistency of replicated data is infeasible or not r equired by many distributed applications, so current systems often permit stale replication, in which cached copies of data values are allowed to become out of date. Queries over cached data return an answer quickly, but the stale answer may be unboundedly imprecise. Alternatively, queries over remot e master data return a precise answer, but with potentially poor performance. To bridge the gap between the se two extremes, we propose… CONTINUE READING
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Offering a precision-performance tradeoff for aggregation queries over replicated data

  • C. Olston, J. Widom
  • Technical report, Stanford University Computer…
  • 2000
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