SLA for Sequential Serverless Chains: A Machine Learning Approach
Pages 36 - 41
Abstract
Despite its vast potential, a challenge facing serverless computing's wide-scale adoption is the lack of Service Level Agreements (SLAs) for serverless platforms. This challenge is compounded when composition technologies are employed to construct large applications using chains of functions. Due to the dependency of a chain's performance on each function forming it, a single function's sub-optimal performance can result in performance degradations of the entire chain. This paper sheds light on this problem and provides a categorical classification of the factors that impact a serverless function execution performance. We discuss the challenge of serverless chains' SLA and present the results of leveraging FaaS2F, our proposed serverless SLA framework, to define SLAs for fixed-size and variable-size sequential serverless chains. The validation results demonstrate high accuracy in detecting sub-optimal executions exceeding 79%.
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Index Terms
- SLA for Sequential Serverless Chains: A Machine Learning Approach
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Published In
December 2021
55 pages
ISBN:9781450391726
DOI:10.1145/3493651
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Published: 06 December 2021
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