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A Grid middleware for Distributed Java Computing with MPI Binding and Process Migration Supports

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Journal of Computer Science & Technology 2003年第4期18卷 505-514页

作者：陈琳王卓立 Francis C.M.Lau Department of Computer Science and Information Systems The University of Hong Kong P.R. China

"Grid" computing has emerged as an important new research field. With years of efforts, grid researchers have successfully developed grid technologies including security solutions,resource management protocols, information query protocols, and data management services. However, as the ultimate goal of grid computing is to design an infrastructure which supports dynamic,cross-organizational resource sharing, there is a need of solutions for efficient and transparent task re-scheduling in the *** this research, a new grid middleware is proposed, called G-JavaMPI. This middleware adds the parallel computing capability of Java to the grid with the support of a Grid-enabled message passing interface (MPI) for inter-process communication between Java processes executed at different grid points. A special feature of the proposed G-JavaMPI is the support of Java process migration with post-migration message redirection. With these supports, it is possible to migrate executing Java process from site to site for continuous computation, if some site is scheduled to be turned down for system reconfiguration. Moreover, the proposed G-JavaMPI middleware is very portable since it requires no modification of underlying OS, Java virtual machine, and MPI package. Preliminary performance tests have been conducted. The proposed mechanisms have shown good migration efficiency in a simulated grid environment.

关键词： grid middleware MPI Java process migration

Data Processing middleware in a High-Powered Neutral Beam Injection Control System

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Plasma Science and Technology 2013年第6期15卷 593-598页

作者：盛鹏胡纯栋宋士花刘智民赵远哲张小丹窦少彬 Institute of Plasma Physics Chinese Academy of Sciences

A set of data-processing middleware for a high-powered neutral beam injection（NBI） control system is presented in this *** middleware,based on TCP/IP and multi-threading technologies,focuses mainly on data processing and *** separates the data processing and compression from data acquisition and *** provides universal transmitting interfaces for different software circumstances,such as WinCC,LabView and other measurement systems. The experimental data acquired on Windows,QNX and Linux platforms are processed by the middleware and sent to the monitoring *** are three middleware deployment models：serial processing,parallel processing and alternate serial *** using these models,the middleware solves real-time data-processing problems on heterogeneous environmental acquisition hardware with different operating systems and data applications.

关键词： neutral beam injection control system middleware multithreading

URECA:Efficient Resource Location middleware for Ubiquitous Environment

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Journal of Computer Science & Technology 2008年第6期23卷 929-943页

作者： Donggeon Noh Heonshik Shin Mobile System and Software Laboratory School of Computer Science and EngineeringSeoul National University

We describe an effective resource location framework for ubiquitous computing environments populated by a diverse set of networks, devices, services and computational entities. Our framework provides context adaptation with the aid of a middleware service to improve the quality of resource location. A resource location protocol suitable to each type of network locates resource effectively by means of dynamic reconfiguration to the current context. Our framework is also refined by support for interoperability between different types of resource location protocols occurring across a hybrid ubiquitous network. These characteristics also reduce the control overhead for resource location, saving resource, decreasing latency and permitting a considerable degree of scalability.

关键词： resource location resource discovery middleware context-aware interoperability ubiquitous

A middleware for Polyglot Persistence and Data Portability of Big Data PaaS Cloud Applications

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Computers, Materials & Continua 2020年第11期65卷 1625-1647页

作者： Kiranbir Kaur Sandeep Sharma Karanjeet Singh Kahlon Department of Computer Engineering and Technology Guru Nanak Dev UniversityAmritsar143001India Department of Computer Science and Applications Guru Nanak Dev UniversityAmritsar143001India

Vendor lock-in can occur at any layer of the cloud stack-Infrastructure,Platform,and *** paper covers the vendor lock-in issue at Platform as a Service(PaaS)level where applications can be created,deployed,and managed without worrying about the underlying *** applications and their persisted data on one PaaS provider are not easy to port to another *** overcome this issue,we propose a middleware to abstract and make the database services as *** middleware supports several SQL and NoSQL data stores that can be hosted and ported among disparate PaaS *** facilitates the developers with data portability and data migration among relational and NoSQL-based cloud *** databases are fundamental to endure Big Data applications as they support the handling of an enormous volume of highly variable data while assuring fault tolerance,availability,and *** implementation of the middleware depicts that using it alleviates the efforts of rewriting the application code while changing the backend database system.A working protocol of a migration tool has been developed using this middleware to facilitate the migration of the database(move existing data from a database on one cloud to a new database even on a different cloud).Although the middleware adds some overhead compared to the native code for the cloud services being used,the experimental evaluation on Twitter(a Big Data application)data set,proves this overhead is negligible.

关键词： Cloud computing platform as a service middleware polyglot persistence SQL NoSQL data migration tool Twitter data set

Online approach to feature interaction problems in middleware based system

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Science in China(Series F) 2008年第3期51卷 225-239页

作者： HUANG Gang1,2 LIU XuanZhe1,2 & MEI Hong1,2 1 Key Laboratory of High Confidence Software Technologies, Ministry of Education, Peking University, Beijing 1000871, China 2 School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China Key Laboratory of High Confidence Software Technologies Ministry of Education Peking University Beijing China School of Electronics Engineering and Computer Science Peking University Beijing China

As a popular infrastructure for distributed systems running on the Internet, middleware has to support much more diverse and complex interactions for coping with the drastically increasing demand on information technology and the extremely open and dynamic nature of the Internet. These supporting mechanisms facilitate the development, deployment, and integration of distributed systems, as well as increase the occasions for distributed systems to interact in an undesired way. The undesired interactions may cause serious problems, such as quality violation, function loss, and even system crash. In this paper, the problem is studied from the perspective of the feature interaction problem （FIP） in telecom, and an online approach to the detection and solution on runtime systems is proposed. Based on a classification of middleware enabled interactions, the existence of FIP in middleware based systems is illustrated by four real cases and a conceptual comparison between middleware based systems and telecom systems. After that, runtime software architecture is employed to facilitate the online detection and solution of FIP. The approach is demonstrated on J2EE （Java 2 Platform Enterprise Edition） and applied to detect and resolve all of the four real cases.

关键词： feature interaction middleware reflective software architecture

Development and Application of WebGIS middleware in Oil Production Engineering

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Wuhan University Journal of Natural Sciences 2004年第5期9卷 711-716页

作者： LiUQuan SUNJi-gui LlUJing CollegeofComputer.ScienceandTechnology.JilinUniversity Changehun130012Jilin.China DaqingOil-FieldOilProductionEngineerInstitute.Daqing163453 HeilongjiangChina

WebGIS is the result of combining the technology of Internet with that of Geographic Information Systems (GIS). This paper aims at some problems in the development of GIS, such as the system of development is instable, and presents the method of adopting component technology to accomplish WebGIS middleware which has been successfully applied to the Oil Production Engineering information visible system. It showed in practice that the WebGIS middleware can be casily embedded in the web pages to accomplish GIS application system in a network environment. On the one hand, its application can reduce complexity of system and speed up the pace of development. On the other hand, it is certain to reduce the development costs and improve the maintainability. Key words WebGIS - middleware - oil production engineering CLC number TP 31 Biography: LIU Quan (1969-), male, Ph. D. candidate, research direction: include automated resoning, WebGIS.

关键词： WebGIS middleware oil production engineering

Toward an SCA-OSGi based middleware for Radio Frequency Identification Applications

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Journal of Shanghai Jiaotong university(Science) 2010年第2期15卷 199-206页

作者：吴捷王东盛焕烨 J. Siror Department of Computer Science and Engineering Shanghai Jiaotong University

The radio frequency identification (RFID) technology progressing is becoming a increasing interest in several application areas. To accommodate diverse and changing requirements from applications,RFID middleware should be reconfigurable. However,current RFID middleware is limited in its ability to support reconfiguration. To solve this problem,we adopt the service-oriented component-based approach in building the middleware. Component-based design enables decomposition of middleware functionality and is easier than the current one to manage and modify the structure of the middleware both statically and dynamically. Applying service-oriented architecture (SOA) can further reduce the coupling between components and external software and ease the integration between middleware and applications. We propose a two-layered service component architecture (SCA) open service gateway initiative (OSGi) component model so as to enable reconfigurability. Based on the proposed component model,we build a standard-based RFID middleware-SCA-OSGi based RFID middleware (SORM) which supports flexible deployment topologies and reconfigurability. The design and implementation details of SORM are illustrated.

关键词： radio frequency identification (RFID) middleware service component architecture (SCA) open service gateway initiative (OSGi)

A Glance at the middleware Technology

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Wuhan University Journal of Natural Sciences 2001年第Z1期6卷 351-354页

作者： Zhong Cui\|hao Institute of Software, Chinese Academy of Sciences, Beijing 100080, China Institute of Software Chinese Academy of Sciences Beijing China

After describing the concept of middleware,this paper discusses the position and value of middleware among modern software technologies,summarizes some kinds of common *** paper also gives some proposals for developin... 详细信息

关键词： middleware software development technology middleware model

A Framework of Web Data Integrated LBS middleware

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Wuhan University Journal of Natural Sciences 2006年第5期11卷 1187-1191页

作者： MENG Xiaofeng YIN Shaoyi XIAO Zhen School of Information Renmin University of ChinaBeijing 100872 China

In this paper, we propose a flexible locationbased service （LBS） middleware framework to make the development and deployment of new location based applications much easier. Considering the World Wide Web as a huge data source of location relative information, we integrate the common used web data extraction techniques into the middleware framework, exposing a unified web data interface for the upper applications to make them more attractive. Besides, the framework also emphasizes some common LBS issues, including positioning, location modeling, location-dependent query processing, privacy and secure management.

关键词： location-based service (LBS) middleware web data extraction