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Feedback Control-Based Database Connection Management for Proportional Delay Differentiation-Enabled Web Application Servers [chapter]

Wenping Pan, Dejun Mu, Hangxing Wu, Xinjia Zhang, Lei Yao
2008 Lecture Notes in Computer Science  
This paper considers providing PDD service in web application servers through feedback control-based database connection management.  ...  Periodically the controller is invoked to calculate and adjust the probabilities for different classes of dynamic requests to use database connections, according to the error between the measured delay  ...  This paper describes the approach for proportional delay differentiations in web application servers through feedback control-based database connection management.  ... 
doi:10.1007/978-3-540-88140-7_7 fatcat:iop3q5dcwzdvpnjlb37qcbgmpi

Control Systems application in Java based Enterprise and Cloud Environments – A Survey

Ravi Kumar, Dr. Chelliah, Dr.A.Vinaya Babu
2011 International Journal of Advanced Computer Science and Applications  
Our paper presents this review with a specific emphasis on Java based Web, Application and Enterprise Server Bus environments.  ...  We observe that majority of the control system applications are in Web and Application Server environments.  ...  SLA management of Web Servers is managed using "Queue Length Model Based Feedback Control" under dynamic traffic that provides delay regulation reducing residual errors, which is discussed in [44] as  ... 
doi:10.14569/ijacsa.2011.020820 fatcat:udkt4x3rprgtllms5xmpd6b75i

Feedback Control Architecture and Design Methodology for Service Delay Guarantees in Web Servers

Chenyang Lu, Ying Lu, T.F. Abdelzaher, J.A. Stankovic, Sang Hyuk Son
2006 IEEE Transactions on Parallel and Distributed Systems  
The first contribution of this paper is the architecture based on feedback control loops that enforce desired connection delays via dynamic connection scheduling and process reallocation.  ...  This paper presents the design and implementation of an adaptive Web server architecture to provide relative, absolute and hybrid connection delay guarantees for different service classes.  ...  None of those projects provided connection delay differentiation in Web servers. The integration of our work with those techniques will enable Web services to provide end-to-end delay guarantees.  ... 
doi:10.1109/tpds.2006.123 fatcat:ynuqh7iamfesfkzo66dyqsisd4

A survey on performance management for internet applications

Jordi Guitart, Jordi Torres, Eduard Ayguadé
2010 Concurrency and Computation  
We present a complete taxonomy that characterizes and classifies these proposals into several categories including request scheduling, admission control, service differentiation, dynamic resource management  ...  This paper makes a survey on the different proposals in the literature for managing Internet applications' performance.  ...  [60] introduce a feedback control architecture for adapting resource allocation such that differentiated connection delays between different service classes in web servers under HTTP 1.1 are achieved  ... 
doi:10.1002/cpe.1470 fatcat:bxlovt3kf5hyvbu4hrjdpamvra

A Survey of Quality of Service in Multi-tier Web Applications

2016 KSII Transactions on Internet and Information Systems  
Recently, a number of rule-and model-based approaches have been designed for dynamic resource management in virtualized data centers.  ...  However, managing the performance of multi-tier web services under dynamic and unpredictable workload, and different resource demands in each tier is a critical problem for a service provider.  ...  The application server implements a complex business logic and resides between the web server and database tiers. It provides functionalities for security, session state, and database access.  ... 
doi:10.3837/tiis.2016.01.014 fatcat:olcm4bcazjh7havualoqbzcaga

Feedback control real-time scheduling

Chenyang Lu, John A. Stankovic, Tarek Abdelzaher, Sang H. Son, Gang Tao
2000 ACM SIGOPS Operating Systems Review  
Second, we develop an adaptive web server architecture to provide relative and absolute delay guarantees to different service classes with unpredictable workloads.  ...  We develop Feedback Control real-time Scheduling (FCS) as a unified framework to provide Quality of Service (QoS) guarantees in unpredictable environments (such as ebusiness servers on the Internet).  ...  5.4) to justify the use of connection delay as a metric for service differentiation in web servers with HTTP 1.1.  ... 
doi:10.1145/346152.346275 fatcat:a6cf7zwyv5g23p3lv7qxwwwja4

Feedback control real-time scheduling

Chenyang Lu, John A. Stankovic, Tarek Abdelzaher, Sang H. Son, Gang Tao
2000 ACM SIGOPS Operating Systems Review  
Second, we develop an adaptive web server architecture to provide relative and absolute delay guarantees to different service classes with unpredictable workloads.  ...  We develop Feedback Control real-time Scheduling (FCS) as a unified framework to provide Quality of Service (QoS) guarantees in unpredictable environments (such as ebusiness servers on the Internet).  ...  5.4) to justify the use of connection delay as a metric for service differentiation in web servers with HTTP 1.1.  ... 
doi:10.1145/346152.346222 fatcat:qn3trhrsnrdivimcsnsci4mjoa

Overload management as a fundamental service design primitive

Matt Welsh, David Culler
2002 Proceedings of the 10th workshop on ACM SIGOPS European workshop: beyond the PC - EW10  
We demonstrate the use of these overload control mechanisms in two applications: a complex Web-based e-mail service, and a dynamic Web server benchmark.  ...  We present a feedback-driven approach to overload control based on the staged event-driven architecture (SEDA) model for Internet service design.  ...  Web servers, clustered middle-tier systems, databases, directory services, and file servers all require some form of overload management, though few deployed systems are architected to take this problem  ... 
doi:10.1145/1133373.1133386 dblp:conf/sigopsE/WelshC02 fatcat:bjo34wy4tnfrxcfsulwx4m6fly

An observation-based approach towards self-managing web servers

Abhishek Chandra, Prashant Pradhan, Renu Tewari, Sambit Sahu, Prashant Shenoy
2006 Computer Communications  
As more business applications have become web enabled, the web server architecture has evolved to provide performance isolation, service differentiation, and QoS guarantees.  ...  In this paper, we describe an observation-based approach for selfmanaging web servers that can adapt to changing workloads while maintaining the QoS requirements of different classes.  ...  a Web server, an application server and a back-end database.  ... 
doi:10.1016/j.comcom.2005.07.003 fatcat:kvv4oditabf33nyp6mgwyrmami

Adversarial exploits of end-systems adaptation dynamics

Mina Guirguis, Azer Bestavros, Ibrahim Matta, Yuting Zhang
2007 Journal of Parallel and Distributed Computing  
Using detailed models, we instantiate this general framework for some of the aforementioned end-system adaptation mechanisms, focusing on admission controllers and load balancers.  ...  Internet end-systems employ various adaptation mechanisms that enable them to respond adequately to legitimate requests in overload situations.  ...  In [2] , a feedback control loop was incorporated in an Apache web server in order to adjust the relative delays for different classes through dynamic scheduling.  ... 
doi:10.1016/j.jpdc.2006.10.005 fatcat:qjn76hdrafbjddrlqdwrhah3ee

What does control theory bring to systems research?

Xiaoyun Zhu, Mustafa Uysal, Zhikui Wang, Sharad Singhal, Arif Merchant, Pradeep Padala, Kang Shin
2009 ACM SIGOPS Operating Systems Review  
Control theory offers a principled way for designing feedback loops to deal with unpredictable changes, uncertainties, and disturbances in systems.  ...  We highlight the key benefits of a control-theoretic approach for systems research, and present specific examples from our experience of designing adaptive resource control systems where this approach  ...  The types of systems that have benefited from such an approach include multi-media systems [14] , Web servers [1, 8] , proxy caches [18] , database servers [22] , multi-tier Web sites [10] , and real-time  ... 
doi:10.1145/1496909.1496922 fatcat:rhtrvinukveybizso3k3bbzeh4

A Practical Experience on the Amazon Alexa Integration in Smart Offices

Răzvan Bogdan, Alin Tatu, Mihaela Marcella Crisan-Vida, Mircea Popa, Lăcrămioara Stoicu-Tivadar
2021 Sensors  
attendance system and reporting, but also interacting with project management services used for planning, issue tracking, and reporting.  ...  For the experimental setup, different test cases were developed in order to interact with the office environment formed by specific devices, as well as with the project management tool tasks.  ...  This work was supported by a grant of the Romanian Ministry of Research, Innovation and Digitization, project number POC/398/1-Development of networks of R&D centers, coordinated at national level and connected  ... 
doi:10.3390/s21030734 pmid:33499092 fatcat:imptixnuibgetmgbb3qvfdzjhy

Adaptive control of virtualized resources in utility computing environments

Pradeep Padala, Kang G. Shin, Xiaoyun Zhu, Mustafa Uysal, Zhikui Wang, Sharad Singhal, Arif Merchant, Kenneth Salem
2007 Proceedings of the 2nd ACM SIGOPS/EuroSys European Conference on Computer Systems 2007 - EuroSys '07  
Our control system is developed using classical control theory, and we used a black-box system modeling approach to overcome the absence of first principle models for complex enterprise applications and  ...  Furthermore, for multi-tier applications, the amount of resources needed to achieve their QoS goals might be different at each tier and may also depend on availability of resources in other tiers.  ...  The application areas include web server performance guaranteees [1] , dynamic adjustment of the cache size for multiple request classes [22] , guaranteed relative delays in web servers by connection  ... 
doi:10.1145/1272996.1273026 dblp:conf/eurosys/PadalaSZUWSMS07 fatcat:4grftp227fdxtl63tlov5wmw6q

Adaptive control of virtualized resources in utility computing environments

Pradeep Padala, Kang G. Shin, Xiaoyun Zhu, Mustafa Uysal, Zhikui Wang, Sharad Singhal, Arif Merchant, Kenneth Salem
2007 ACM SIGOPS Operating Systems Review  
Our control system is developed using classical control theory, and we used a black-box system modeling approach to overcome the absence of first principle models for complex enterprise applications and  ...  Furthermore, for multi-tier applications, the amount of resources needed to achieve their QoS goals might be different at each tier and may also depend on availability of resources in other tiers.  ...  The application areas include web server performance guaranteees [1] , dynamic adjustment of the cache size for multiple request classes [22] , guaranteed relative delays in web servers by connection  ... 
doi:10.1145/1272998.1273026 fatcat:lnxws5ugxfetjnpotben6pocdq

On TCP-based SIP server overload control

Charles Shen, Henning Schulzrinne
2010 Principles, Systems and Applications of IP Telecommunications on - IPTComm '10  
Our work leads to the important general insight that the traditional notion of TCP flow control alone is incapable of managing overload for time-critical session-based applications, which would be applicable  ...  not only to SIP, but also to a wide range of other common applications such as database servers.  ...  ACKNOWLEDGEMENT The authors would like to acknowledge NTT for funding this project and Dr. Arata Koike for useful discussions.  ... 
doi:10.1145/1941530.1941541 dblp:conf/iptcomm/ShenS10 fatcat:kdkvzpt3arek5bqm7al2um3j5e
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