MDCC: multi-data center consistency

@article{Kraska2012MDCCMC,
  title={MDCC: multi-data center consistency},
  author={Tim Kraska and Gene Pang and Michael J. Franklin and Samuel Madden and Alan Fekete},
  journal={ArXiv},
  year={2012},
  volume={abs/1203.6049}
}
Replicating data across multiple data centers allows using data closer to the client, reducing latency for applications, and increases the availability in the event of a data center failure. MDCC (Multi-Data Center Consistency) is an optimistic commit protocol for geo-replicated transactions, that does not require a master or static partitioning, and is strongly consistent at a cost similar to eventually consistent protocols. MDCC takes advantage of Generalized Paxos for transaction processing… CONTINUE READING

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Key Quantitative Results

  • Amazon data centers, MDCC reduces per transaction latencies by at least 50% (to 234 ms) as compared to 2PC or Megastore, with or­ders of magnitude higher transaction throughput compared to Megastore.

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