Filters








5,151 Hits in 3.5 sec

QoS management in replicated real-time databases

Yuan Wei, S.H. Son, J.A. Stankovic, K.D. Kang
Proceedings. 2003 International Symposium on System-on-Chip (IEEE Cat. No.03EX748)  
We have designed an algorithm that provides quality-of-service guarantees for data services in distributed real-time databases with full replication of temporal data.  ...  Data replication is an effective method to help database systems meet the stringent temporal requirements of real-time applications.  ...  Algorithm for QoS Guarantees in Distributed Real-time Databases In this section, the QoS management algorithm in distributed real-time databases is presented.  ... 
doi:10.1109/real.2003.1253257 dblp:conf/rtss/WeiSSK03 fatcat:nyqczy26nnhgbgtvqqbja26koi

DRACON: QoS Management for Large-Scale Distributed Real-Time Databases

Woochul Kang, Sang H. Son, John A. Stankovic
2009 Journal of Software  
Kang, “Qos management in replicated real time databases,” in RTSS into a higher level of cluster.  ...  His research interests include real- time systems, database and data services, QoS management, wireless sensor networks, and information security.  ... 
doi:10.4304/jsw.4.7.747-757 fatcat:5yua457slfcgznryqc2n54ffta

Introducing QoS to Electronic Commerce Applications [chapter]

Gregor v. Bochmann, Brigitte Kerhervé, Hanan Lutfiyya, Mohamed-Vall M. Salem, Haiwei Ye
2001 Lecture Notes in Computer Science  
In this paper, we will examine the use of dynamic QoS management techniques in combination with replication at the various architectural levels of an electronic commerce application. DB query Process  ...  One important and challenging problem in such context, is the satisfaction of user expectations about the Quality of Service (QoS) provided when applications are deployed on a large scale.  ...  In the context of databases, the parameters of interest are database server availability, database management throughput and query response time.  ... 
doi:10.1007/3-540-45415-2_11 fatcat:t25thlowgnglpk467quaqq6wiq

A New Approach to Manage QoS in Distributed Multimedia Systems [article]

Bechir Alaya, Claude Duvallet, Bruno Sadeg
2009 arXiv   pre-print
Our simulation studies show the usefulness of (m,k)-frame method to adapt the QoS to the real conditions in a multimedia application, according to the current system load.  ...  Dealing with network congestion is a criterion used to enhance quality of service (QoS) in distributed multimedia systems.  ...  Systems suitable to the management of these kinds of data with QoS guarantees are real-time database systems (RTDBSs) [1] [2] .  ... 
arXiv:0906.4936v1 fatcat:kjrvterinrccni6x3nmtxlcwdm

Review on QoS and Security of Database System using Genetic Algorithm

Arun Kumar, Roop Lal, Gurpreet Singh
2017 International Journal of Computer Applications  
The overall objective of this paper is to analyze QoS and security of database system using Genetic algorithm.  ...  In this review has shown that the Genetic algorithm and Pareto-optimal security policies not only meet the security requirement of the user, but also provide the optimal QoS under the available computational  ...  Increasingly more real-time products and services inside databases are essential, that could very impression the quality of service (QoS).  ... 
doi:10.5120/ijca2017913481 fatcat:i35tvxgwdnfsbo7b2xe36lsicq

Strategies for Reliable, Cloud-Based Distributed Real-Time and Embedded Systems

Kyoungho An
2012 2012 IEEE 31st Symposium on Reliable Distributed Systems  
Timeliness in data-center networks 3. Real-time scheduling in hypervisors 4. High availability via replication of virtual machines.  ...  D^2TCP • Reducing deadline miss ratio • Real-time scheduling in hypervisors 1. RT-Xen • 4 Fixed priority real-time schedulers used in Xen 2.  ... 
doi:10.1109/srds.2012.69 dblp:conf/srds/An12 fatcat:7hixo4ufrrewnatiawoylaryx4

Real-Time Databases and Data Services

Krithi Ramamritham, Sang H. Son, Lisa Cingiser DiPippo
2004 Real-time systems  
MIRROR (Managing Isolation in Replicated Real-time Object Repositories), is a concurrency control protocol speci®cally designed for ®rm-deadline applications operating on replicated real-time databases  ...  REAL-TIME DATABASES AND DATA SERVICES A QoS management framework for web-based real-time data services, based on feedback control theory is presented in Son and Kang (2002) .  ... 
doi:10.1023/b:time.0000045317.37980.a5 fatcat:zpzo5tconzd6zaw2zla7utkyb4

Data Services in Distributed Real-Time Embedded Systems [chapter]

Woochul Kang, Sang H. Son
2008 Lecture Notes in Computer Science  
In this paper, we propose a real-time data service architecture called DRACON (Decentralized data Replication And CONtrol), which is designed to support large-scale distributed real-time applications.  ...  However, providing real-time data services in such large-scale and geographically distributed environment is a challenging task.  ...  In this paper, we propose a distributed real-time database (DRTDB) architecture called DRACON (Decentralized data Replication And CONtrol), which supports QoS in a scalable manner.  ... 
doi:10.1007/978-3-540-87785-1_15 fatcat:3ri2eqwy7fdihkpfikugop7vla

QuaSAQ: An Approach to Enabling End-to-End QoS for Multimedia Databases [chapter]

Yi-Cheng Tu, Sunil Prabhakar, Ahmed K. Elmagarmid, Radu Sion
2004 Lecture Notes in Computer Science  
In addition to an overview of key research issues in the design of QoS-aware databases, this paper presents our proposed solutions, and system implementation details.  ...  Recent research in multimedia databases has devoted little attention to the aspect of the integration of QoS support at the user level.  ...  [19] discusses QoS control for general queries in real-time databases.  ... 
doi:10.1007/978-3-540-24741-8_40 fatcat:vdglzaiahvhdvmdnxsyaforgjm

QoS Aware Middleware Support for Dynamically Reconfigurable Component Based IoT Applications

Aitor Agirre, Jorge Parra, Aintzane Armentia, Elisabet Estévez, Marga Marcos
2016 International Journal of Distributed Sensor Networks  
provide the required QoS level to the  ...  The nature of such systems is highly dynamic and very heterogeneous and issues such as interoperability, energy consumption, or resource management must be properly managed to ensure the operation of the  ...  Acknowledgments This work was financed in part by the University of the Basque Country (UPV/EHU) under Project UFI 11/28 and by the MCYT&FEDER under Project DPI2015-68602-R.  ... 
doi:10.1155/2016/2702789 fatcat:g3y2dhpccvdlliat6mxt2fcoii

QoS Management for Embedded Databases in Multicore-Based Embedded Systems

Woochul Kang, Jaeyong Chung
2015 Mobile Information Systems  
management of real-time data.  ...  With ubiquitous deployment of sensors and network connectivity, amounts of real-time data for embedded systems are increasing rapidly and database capability is required for many embedded systems for systematic  ...  In our previous work [2] , we presented a real-time embedded database, called QeDB, that supports the timeliness of data-intensive tasks using the control-theoretic QoS management architecture.  ... 
doi:10.1155/2015/657252 fatcat:stukdtf7ergb7mwmj6yu6vu5ka

A Predictive Load Balancing Service for Cloud-Replicated Databases

Carlos S. S. Marinho, Emanuel F. Coutinho, José S. Costa Filho, Leonardo O. Moreira, Flávio R. C. Sousa, Javam C. Machado
2017 Brazilian Symposium on Databases  
Database Management Systems must be available to support the deployment of cloud applications resorting to databases.  ...  This paper proposes a predictive load balancing service for replicated cloud databases.  ...  Real Response Time and Forecasted Response Time Table 1 .  ... 
dblp:conf/sbbd/MarinhoCFMSM17 fatcat:nkuoaqjc3zh2rfqv2g3jtjgboa

Resource management and fault tolerance principles for supporting distributed real-time and embedded systems in the cloud

Kyoungho An
2012 Proceedings of the 9th Middleware Doctoral Symposium of the 13th ACM/IFIP/USENIX International Middleware Conference on - MIDDLEWARE '12  
These benefits, however, do not yet readily carry over to distributed, real-time and embedded (DRE) systems, which are a class of systems that require stringent assurances on quality of service (QoS) properties  ...  Second, it presents ongoing work that addresses one key challenge stemming from the need for real-time and scalable resource monitoring in the cloud.  ...  The Monitoring Manager, which is located in the Frontend Node or on an individual physical node (if a database connection is established remotely), serves as an orchestrator to manage DDS connections between  ... 
doi:10.1145/2405688.2405692 fatcat:k26kp7qyybhmhgfd6tkrj6nazu

Effect of selective replication strategy and dynamic admission control to QoS management in video on demand systems

Bechir Alaya, Salah Zidi, Lamri Laouamer, Tarek Moulahi
2015 Journal of Innovation in Digital Ecosystems  
In this paper, we have chosen to study admission control and a replication strategy in a video on demand system called Feedback Control Architecture for Distributed Multimedia Systems (FCA-DMS).  ...  The goal is to maintain an updated broad view of the system's behaviour from the collected measurements to databases of available videos and databases of available video servers.  ...  FCA-DMS: characteristics, design & challenges Characteristics To guarantee a high level of QoS demanded by end-users, a method treated in Real Time Database Systems (RDBSs) [9, 10] is studied.  ... 
doi:10.1016/j.jides.2015.11.002 fatcat:2f2zkgre6rc6jpdytmilfmcmdi

Designing a Broker for QoS-driven Runtime Adaptation of SOA Applications

Valeria Cardellini, Stefano Iannucci
2010 2010 IEEE International Conference on Web Services  
One of the major current trends in serviceoriented systems is the emphasis given to the need of introducing runtime adaptation features, so that the system can meet its QoS requirements in a volatile operating  ...  In this paper we present the design and implementation of a service broker that supports the QoS-driven runtime adaptation of SOA applications offered as composite services to users.  ...  The NDB storage engine allows the creation and the management of in-memory databases, replicated with hard-consistency constraints.  ... 
doi:10.1109/icws.2010.77 dblp:conf/icws/CardelliniI10 fatcat:nffnkf6tarbnfncuobamc5s3me
« Previous Showing results 1 — 15 out of 5,151 results