Practical and low-overhead masking of failures of TCP-based servers

  title={Practical and low-overhead masking of failures of TCP-based servers},
  author={Dmitrii Zagorodnov and Keith Marzullo and Lorenzo Alvisi and Thomas C. Bressoud},
  journal={ACM Trans. Comput. Syst.},
This article describes an architecture that allows a replicated service to survive crashes without breaking its TCP connections. Our approach does not require modifications to the TCP protocol, to the operating system on the server, or to any of the software running on the clients. Furthermore, it runs on commodity hardware. We compare two implementations of this architecture (one based on primary/backup replication and another based on message logging) focusing on scalability, failover time… CONTINUE READING
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