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- W4292958535 abstract "Data lakes hold a growing amount of cold data that is infrequently accessed, yet require interactive response times. Serverless functions are seen as a way to address this use case since they offer an appealing alternative to maintaining (and paying for) a fixed infrastructure. Recent research has analyzed the potential of serverless for data processing. In this paper, we expand on such work by looking into the question of serverless resource allocation to data processing tasks (number and size of the functions). We formulate a general model to roughly estimate completion time and financial cost, which we apply to augment an existing serverless data processing system with an advisory tool that automatically identifies configurations striking a good balance -- which we define as being close to the knee of their Pareto frontier. The model takes into account key aspects of serverless: start-up, computation, network transfers, and overhead as a function of the input sizes and intermediate result exchanges. Using (micro)benchmarks and parts of TPC-H, we show that this advisor is capable of pinpointing configurations desirable to the user. Moreover, we identify and discuss several aspects of data processing on serverless affecting efficiency. By using an automated tool to configure the resources, the barrier to using serverless for data processing is lowered and the narrow window where it is cost effective can be expanded by using a more optimal allocation instead of having to over-provision the design." @default.
- W4292958535 created "2022-08-24" @default.
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- W4292958535 date "2022-08-19" @default.
- W4292958535 modified "2023-09-30" @default.
- W4292958535 title "Resource Allocation in Serverless Query Processing" @default.
- W4292958535 doi "https://doi.org/10.48550/arxiv.2208.09519" @default.
- W4292958535 hasPublicationYear "2022" @default.
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