A Framework for Satisfying the Performance Requirements of Containerized Software Systems Through Multi-Versioning

Gholami, Sara; Goli, Alireza; Bezemer, Cor‐Paul; Khazaei, Hamzeh

doi:10.1145/3358960.3379125

Cited by 6 publications

(2 citation statements)

References 29 publications

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“…An N-Version software application relies on the simultaneous execution of N programs that are different implementations of the same specification [21]. This type of architecture is used to enhance a desired property of the application, such as reliability [15], [22], performance [23], or security [24], [25]. In most cases, this is achieved by comparing or matching the outputs of the N programs given the same input.…”

Section: B N-version Designmentioning

confidence: 99%

Highly Available Blockchain Nodes With N-Version Design

Ron,

Soto-Valero,

Zhang

et al. 2024

IEEE Trans. Dependable and Secure Comput.

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As all software, blockchain nodes are exposed to faults in their underlying execution stack. Unstable execution environments can disrupt the availability of blockchain nodes' interfaces, resulting in downtime for users. This paper introduces the concept of N-Version Blockchain nodes. This new type of node relies on simultaneous execution of different implementations of the same blockchain protocol, in the line of Avizienis' N-Version programming vision. We design and implement an N-Version blockchain node prototype in the context of Ethereum, called N-ETH. We show that N-ETH is able to mitigate the effects of unstable execution environments and significantly enhance availability under environment faults. To simulate unstable execution environments, we perform fault injection at the system-call level. Our results show that existing Ethereum node implementations behave asymmetrically under identical instability scenarios. N-ETH leverages this asymmetric behavior available in the diverse implementations of Ethereum nodes to provide increased availability, even under our most aggressive fault-injection strategies. We are the first to validate the relevance of N-Version design in the domain of blockchain infrastructure. From an industrial perspective, our results are of utmost importance for businesses operating blockchain nodes, including Google, ConsenSys, and many other major blockchain companies.

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Section: B N-version Designmentioning

confidence: 99%

Highly Available Blockchain Nodes With N-Version Design

Ron,

Soto-Valero,

Zhang

et al. 2024

IEEE Trans. Dependable and Secure Comput.

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“…More recent works have proposed adaptations for microservices in the context of the IoT. Gholami et al [44] propose the usage of different versions of a microservice (lightweight or heavyweight), primarily for the purpose of scaling the application. Kannan et al [45] present GrandSLAM, a microservice execution framework aimed to maximize throughput and reduce SLA violations.…”

Section: B Microservices Service Adaptations and Service Variantsmentioning

confidence: 99%

Chameleons on Cloudlets: Elastic Edge Computing Through Microservice Variants

Gedeon,

Wagner,

Skaisgiris

et al. 2021

Preprint

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Common deployment models for Edge Computing are based on (composable) microservices that are offloaded to cloudlets. Runtime adaptations-in response to varying load, QoS fulfillment, mobility, etc.-are typically based on coarsegrained and costly management operations such as resource reallocation or migration. The services themselves, however, remain non-adaptive, worsening the already limited elasticity of Edge Computing compared to Cloud Computing. Edge Computing applications often have stringent requirements on the execution time but are flexible regarding the quality of a computation. The potential benefits of exploiting this trade-off remain untapped.This paper introduces the concept of adaptable microservices that provide alternative variants of specific functionalities. We define service variants that differ w.r.t. the internal functioning of the service, manifested in different algorithms, parameters, and auxiliary data they use. Such variants allow fine-grained trade-offs between the QoS (e.g., a maximum tolerable execution time) and the quality of the computation. We integrate adaptable microservices into an Edge Computing framework, show the practical impact of service variants, and present a strategy for switching variants at runtime.

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Reviving Software Diversity in Microservices to Optimize the Performance of Software Systems

Dhaliwal,

Khazaei

2023

2023 IEEE International Conference on Autonomic Computing and Self-Organizing Systems Companion (ACSOS-C)

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A Framework for Satisfying the Performance Requirements of Containerized Software Systems Through Multi-Versioning

Cited by 6 publications

References 29 publications

Highly Available Blockchain Nodes With N-Version Design

Highly Available Blockchain Nodes With N-Version Design

Chameleons on Cloudlets: Elastic Edge Computing Through Microservice Variants

Reviving Software Diversity in Microservices to Optimize the Performance of Software Systems

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