Article in Proceedings INPROC-2017-43

BibliographyMayer, Ruben; Slo, Ahmad; Tariq, Muhammad Adnan; Rothermel, Kurt; Gräber, Manuel; Ramachandran, Umakishore: SPECTRE: Supporting Consumption Policies in Window-Based Parallel Complex Event Processing.
In: Proceedings of Middleware ’17, Las Vegas, NV, USA, December 11–15, 2017.
University of Stuttgart, Faculty of Computer Science, Electrical Engineering, and Information Technology.
pp. 1-13, german.
ACM, December 11, 2017.
DOI: 10.1145/3135974.3135983.
Article in Proceedings (Conference Paper).
CR-SchemaC.2.4 (Distributed Systems)

Distributed Complex Event Processing (DCEP) is a paradigm to infer the occurrence of complex situations in the surrounding world from basic events like sensor readings. In doing so, DCEP operators detect event patterns on their incoming event streams. To yield high operator throughput, data parallelization frameworks divide the incoming event streams of an operator into overlapping windows that are processed in parallel by a number of operator instances. In doing so, the basic assumption is that the different windows can be processed independently from each other. However, consumption policies enforce that events can only be part of one pattern instance; then, they are consumed, i.e., removed from further pattern detection. That implies that the constituent events of a pattern instance detected in one window are excluded from all other windows as well, which breaks the data parallelism between different windows. In this paper, we tackle this problem by means of speculation: Based on the likelihood of an event's consumption in a window, subsequent windows may speculatively suppress that event. We propose the SPECTRE framework for speculative processing of multiple dependent windows in parallel. Our evaluations show an up to linear scalability of SPECTRE with the number of CPU cores.

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Copyright(c) Owner 2017. This is the authors’ version of the work. It is posted here for your personal use. Not for redistribution. The definitive version is published in Proceedings of Middleware ’17, Las Vegas, NV, USA, December 11–15, 2017,
Department(s)University of Stuttgart, Institute of Parallel and Distributed Systems, Distributed Systems
Entry dateSeptember 21, 2017
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