DUAL PROCESSING LOAD SHEDDING SYSTEM FOR GEOSENSOR DATA STREAM OF CLUSTERING ENVIRONMENT

摘要

PURPOSE: A dual processing load shedding system for GeoSensor data stream of clustering environment is provided to improve the accuracy of aggregate queries. CONSTITUTION: A query distribution unit (100) distributes queries that generated loads in two nodes. A result merge unit (200) merges results processed in each of the two nodes. The query distribution unit distributes aggregate computations that are expected to generate loads or have generated loads among the queries registered in a GeoStream server (GSS) to a pair node in the middle of synchronizing stream data. The query distribution unit synchronizes the steam data between the two nodes with a sliding window as a unit. [Reference numerals] (100) Query distribution unit; (200) Result merge unit