Title
Adaptive Data Replication for Load Sharing in a Sensor Data Center
Abstract
Cyber-physical applications need to process a lot of sensor data, for example, to analyze traffic patterns and structural soundness of critical infrastructures. Although the amount of sensor data to process is increasing fast, system support to efficiently store and analyze an extensive amount of sensor data largely lags behind. To efficiently store, retrieve, and process massive sensor data, we are developing a sensor data center (SDC) that supports spatio-temporal sensor data structures and parallel sensor data processing using clustered computational nodes composed of commodity hardware. The SDC sharply contrasts to most existing data centers that do not support spatio-temporal sensor data storage, retrieval, and processing. In this paper, we especially focus on the problem of potential load imbalance due to data access skews that adversely affects the timeliness of parallel sensor data processing. Specifically, we present an adaptive data replication method to address access skews in a SDC. In our performance evaluation performed in a preliminary version of a SDC, our adaptive approach substantially outperforms a baseline that does not support adaptive data replication.
Year
DOI
Venue
2009
10.1109/ICDCSW.2009.12
ICDCS Workshops
Keywords
Field
DocType
adaptive data replication,sensor data center,parallel sensor data processing,data access skew,spatio-temporal sensor data storage,existing data center,sensor data,process massive sensor data,adaptive data,parallel sensor data,data structure,cluster computing,data access,data processing,data storage,heating,resource allocation,real time systems,databases,data replication,critical infrastructure,data structures,concurrent computing,temporal databases,information retrieval,data center,data mining,hardware,pattern analysis,memory
Key distribution in wireless sensor networks,Data structure,Data processing,Replication (computing),Computer data storage,Computer science,Real-time computing,Temporal database,Data access,Data center,Distributed computing
Conference
ISSN
Citations 
PageRank 
1545-0678
1
0.41
References 
Authors
9
2
Name
Order
Citations
PageRank
Kyoung-Don Kang156337.51
Can Başaran2877.72