Coercing clients into facilitating failover for object delivery

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Application-level protocols used for object delivery, such as HTTP, are built atop TCP/IP and inherit its host-to-host abstraction. Given that these services are replicated for scalability, this unnecessarily exposes failures of individual servers to their clients. While changes to both client and server applications can be used to mask such failures, this paper explores the feasibility of transparent recovery for unmodified object delivery services (TRODS). The key insight in TRODS is cross-layer visibility and control: TRODS carefully derives reliable storage for application-level state from the mechanics of the transport layer. This state is used to reconstruct object delivery sessions, which are then transparently spliced into the client's ongoing connection. TRODS is fully backwards-compatible, requiring no changes to the clients or server applications. Its performance is competitive with unmodified HTTP services, providing nearly identical throughput while enabling timely failover.

Original languageEnglish (US)
Title of host publication2011 IEEE/IFIP 41st International Conference on Dependable Systems and Networks, DSN 2011
Pages157-168
Number of pages12
DOIs
StatePublished - 2011
Event2011 IEEE/IFIP 41st International Conference on Dependable Systems and Networks, DSN 2011 - Hong Kong, Hong Kong
Duration: Jun 27 2011Jun 30 2011

Publication series

NameProceedings of the International Conference on Dependable Systems and Networks

Other

Other2011 IEEE/IFIP 41st International Conference on Dependable Systems and Networks, DSN 2011
CountryHong Kong
CityHong Kong
Period6/27/116/30/11

All Science Journal Classification (ASJC) codes

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

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    Lloyd, W., & Freedman, M. J. (2011). Coercing clients into facilitating failover for object delivery. In 2011 IEEE/IFIP 41st International Conference on Dependable Systems and Networks, DSN 2011 (pp. 157-168). [5958215] (Proceedings of the International Conference on Dependable Systems and Networks). https://doi.org/10.1109/DSN.2011.5958215