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arXiv 2108.04749cs.DCcs.AI
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分布式流处理中负载预测技术的评价

Evaluation of Load Prediction Techniques for Distributed Stream Processing

Hasso Plattner Institute, University of Potsdam(波茨坦大学哈索·普拉特纳研究所);Technische Universität Berlin(柏林工业大学)

Kordian Gontarska, Morgan Geldenhuys, Dominik Scheinert, Philipp Wiesner, Andreas Polze, Lauritz Thamsen

摘要:

分布式流处理(DSP)系统能够处理大的连续数据流,以接近实时的产生结果。它们是许多数据密集型应用程序和分析平台的重要组成部分。事件到达DSP系统的速率可能随时间变化很大,这可能是由于数据流中的趋势、周期和季节性模式。传入工作负载的先验知识使资源管理和优化任务(例如动态缩放、资源的实时迁移以及运行时配置参数的调整)的主动方法成为可能,从而带来潜在的更好的服务质量。在本文中,我们进行了全面的评估,不同的负载预测技术的DSP工作。我们确定了三个用例,并制定了特定于DSP作业的负载预测要求。自动优化的经典和深度学习方法正在典型DSP领域的九个不同数据集上进行评估,即物联网,Web 2.0和集群监控。我们比较了模型在整体准确性和训练持续时间方面的性能。我们的研究结果表明,深度学习方法为大多数评估数据集提供了最准确的负载预测。

英文摘要:

Distributed Stream Processing (DSP) systems enable processing large streams of continuous data to produce results in near to real time. They are an essential part of many data-intensive applications and analytics platforms. The rate at which events arrive at DSP systems can vary considerably over time, which may be due to trends, cyclic, and seasonal patterns within the data streams. A priori knowledge of incoming workloads enables proactive approaches to resource management and optimization tasks such as dynamic scaling, live migration of resources, and the tuning of configuration parameters during run-times, thus leading to a potentially better Quality of Service. In this paper we conduct a comprehensive evaluation of different load prediction techniques for DSP jobs. We identify three use-cases and formulate requirements for making load predictions specific to DSP jobs. Automatically optimized classical and Deep Learning methods are being evaluated on nine different datasets from typical DSP domains, i.e. the IoT, Web 2.0, and cluster monitoring. We compare model performance with respect to overall accuracy and training duration. Our results show that the Deep Learning methods provide the most accurate load predictions for the majority of the evaluated datasets.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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