Scalable stateful stream processing for smart grids
Scalable stateful stream processing for smart grids
复制标题
智能电网的可扩展状态流处理
DOI:
10.1145/2611286.2611326
复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Fernandez R
中科院分区:
文献类型:
--
作者:
Fernandez R
We describe a solution to the ACM DEBS Grand Challenge 2014, which evaluates event-based systems for smart grid analytics. Our solution follows the paradigm ofstateful data stream processingand is implemented on top of theSEEPstream processing platform. It achieves high scalability by massive data-parallel processing and the option of performing semantic load-shedding. In addition, our solution is fault-tolerant, ensuring that the large processing state of stream operators is not lost after failure.Our experimental results show that our solution processes 1 month worth of data for 40 houses in 4 hours. When we scale out the system, the time reduces linearly to 30 minutes before the system bottlenecks at the data source. We then apply semantic load-shedding, maintaining a low median prediction error and reducing the time further to 17 minutes. The system achieves these results with median latencies below 30 ms and a 90thpercentile below 50 ms.