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DOI: 10.4230/LIPIcs.ECOOP.2019.18
Reliable State Machines: A Framework for Programming Reliable Cloud Services

Authors: Suvam Mukherjee, Nitin John Raj, Krishnan Govindraj, Pantazis Deligiannis, Chandramouleswaran Ravichandran, Akash Lal, Aseem Rastogi, and Raja Krishnaswamy

Published in: LIPIcs, Volume 134, 33rd European Conference on Object-Oriented Programming (ECOOP 2019)

Abstract
Building reliable applications for the cloud is challenging because of unpredictable failures during a program’s execution. This paper presents a programming framework, called Reliable State Machines (RSMs), that offers fault-tolerance by construction. In our framework, an application comprises several (possibly distributed) RSMs that communicate with each other via messages, much in the style of actor-based programming. Each RSM is fault-tolerant by design, thereby offering the illusion of being "always-alive". An RSM is guaranteed to process each input request exactly once, as one would expect in a failure-free environment. The RSM runtime automatically takes care of persisting state and rehydrating it on a failover. We present the core syntax and semantics of RSMs, along with a formal proof of failure-transparency. We provide a .NET implementation of the RSM framework for deploying services to Microsoft Azure. We carry out an extensive performance evaluation on micro-benchmarks to show that one can build high-throughput applications with RSMs. We also present a case study where we rewrite a significant part of a production cloud service using RSMs. The resulting service has simpler code and exhibits production-grade performance.
Cite as

Suvam Mukherjee, Nitin John Raj, Krishnan Govindraj, Pantazis Deligiannis, Chandramouleswaran Ravichandran, Akash Lal, Aseem Rastogi, and Raja Krishnaswamy. Reliable State Machines: A Framework for Programming Reliable Cloud Services. In 33rd European Conference on Object-Oriented Programming (ECOOP 2019). Leibniz International Proceedings in Informatics (LIPIcs), Volume 134, pp. 18:1-18:29, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2019)

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@InProceedings{mukherjee_et_al:LIPIcs.ECOOP.2019.18,
  author =	{Mukherjee, Suvam and Raj, Nitin John and Govindraj, Krishnan and Deligiannis, Pantazis and Ravichandran, Chandramouleswaran and Lal, Akash and Rastogi, Aseem and Krishnaswamy, Raja},
  title =	{{Reliable State Machines: A Framework for Programming Reliable Cloud Services}},
  booktitle =	{33rd European Conference on Object-Oriented Programming (ECOOP 2019)},
  pages =	{18:1--18:29},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-111-5},
  ISSN =	{1868-8969},
  year =	{2019},
  volume =	{134},
  editor =	{Donaldson, Alastair F.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2019.18},
  URN =		{urn:nbn:de:0030-drops-108101},
  doi =		{10.4230/LIPIcs.ECOOP.2019.18},
  annote =	{Keywords: Fault tolerance, Cloud computing, Actor framework}
}
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