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arXiv 2302.12976cs.DB
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TS-Cabinet:云-边-端时序数据库的分层存储

TS-Cabinet: Hierarchical Storage for Cloud-Edge-End Time-series Database

Shuangshuang Cui, Hongzhi Wang, Xianglong Liu, Zeyu Tian, Xiaoou Ding

摘要:

层次化数据存储是云-边-端时间序列数据库的关键。高效的分层存储将直接减少每端本地数据库的存储空间,提高数据的访问命中率。然而,目前还没有针对云-边-端时序数据库提出有效的分层数据管理策略。针对这一问题,提出了一种基于负载预测的云-边-端时序数据库分层存储调度器TS-Cabinet。据我们所知,这是第一个工作的云边缘端时间序列数据库的分层存储。通过建立温度模型,计算时间序列数据的当前温度,并使用工作量预测模型预测数据的未来温度。最后,我们根据数据迁移策略进行分层存储。在公开数据集上进行了验证,实验结果表明,该方法在云端和边缘端的数据访问命中率均达到94%左右,比现有方法提高了12%. TS-Cabinet可以帮助云-边-端时序数据库避免三方存储全部数据量所带来的存储开销,大大降低协同查询处理时各方之间的数据传输开销。

英文摘要:

Hierarchical data storage is crucial for cloud-edge-end time-series database. Efficient hierarchical storage will directly reduce the storage space of local databases at each side and improve the access hit rate of data. However, no effective hierarchical data management strategy for cloud-edge-end time-series database has been proposed. To solve this problem, this paper proposes TS-Cabinet, a hierarchical storage scheduler for cloud-edge-end time-series database based on workload forecasting. To the best of our knowledge, it is the first work for hierarchical storage of cloud-edge-end time-series database. By building a temperature model, we calculate the current temperature for the timeseries data, and use the workload forecasting model to predict the data's future temperature. Finally, we perform hierarchical storage according to the data migration policy. We validate it on a public dataset, and the experimental results show that our method can achieve about 94% hit rate for data access on the cloud side and edge side, which is 12% better than the existing methods. TS-Cabinet can help cloud-edge-end time-series database avoid the storage overhead caused by storing the full amount of data at all three sides, and greatly reduce the data transfer overhead between each side when collaborative query processing.

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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