Infoscience

Student project

GSN Cloud Storage and Processing

GSN (Global Sensor Networks) is capable of managing configurable virtual sensors through a wide range of wrappers, and is able to manage one-shot and continuous queries, even in a distributed environment with several GSN instances. However, each GSN instance runs on a single machine, and uses a relational-based data storage underneath. While in most medium-size sensor deployments this is just enough, when it comes to process very large numbers of sensor observations, and at very high incoming rates, scalability can become a problem at various stages. The project aims at integrating Spark Streaming, an extension of the core Spark API, with GSN to boost query processing of streams in a multi-node environment and achieve better scalability. We show the feasibility of our approach and demonstrate its scalability through two applications: linear segmentation and anomaly detection: discovering trend of weather data and identifying occasions when live temperature data is delivering unreasonable values.

    Keywords: GSN ; stream processing ; spark

    Note:

    Master Semester Project

    Reference

    • EPFL-STUDENT-204963

    Record created on 2015-02-03, modified on 2016-08-09

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