Ensuring Faultless Communication Behaviour in A Commercial Cloud
Date of Issue2014
SEFM Collocated Workshops: BEAT2, WS-FMDS, FM-RAIL-Bok, MoKMaSD, and OpenCert (2013: Madrid, Spain)
School of Computer Engineering
For many Cloud providers, the backbone of their system is a Cloud coordinator that exposes a portfolio of services to users. The goal of this work is to ensure that a Cloud coordinator interacts correctly with services and users according to a specification of their communication behaviour. To accomplish this goal, we employ session types to analyse the global and local communication patterns. A session type provides an appropriate level of abstraction for specifying message exchange patterns between participants. This work confirms the feasibility of applying session types to protocols used by a commercial Cloud provider. The protocols are developed in SessionJ, an extension of Java implementing session-based programming. We also highlight that the same techniques can be applied when Java is not the development environment by type checking runtime monitors, as in Scribble. Finally, we suggest how our methodology can be used to ensure the correctness of protocols for Cloud brokers, that integrate services exposed by multiple Cloud coordinators, each of whom must correctly cooperate with the Cloud broker.
© 2014 Springer International Publishing Switzerland. This is the author created version of a work that has been peer reviewed and accepted for publication by SEFM Collocated Workshops: BEAT2, WS-FMDS, FM-RAIL-Bok, MoKMaSD, and OpenCert (2013: Madrid, Spain), Lecture Notes in Computer Science, Springer. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1007/978-3-319-05032-4_4].