distributed system

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GDOC: Geographically Dispersed Open Clusters Providing Continuous Availability & Disaster Recovery for Distributed Systems

Geographically Dispersed Open Clusters GDOC is a high availability and disaster recovery solution for highly critical applications with aggressive recovery point and recovery time objectives. GDOC is a solution based on both IBM's extensive high availability and disaster recovery experience, and on high availability and disaster recovery software from Symantec....

Tags: High Availability, Distributed System, IBM Corp., Geographically Dispersed Open Clusters, Disaster Recovery, Data Management

White papers 2009-02-01

Innovative Software Architecture (Part II)

The purpose of information technology is to establish new business processes. By separating concerns, one can focus on the business functionality which is the true purpose of the information system. Ideally, architects would like to separate the distributed system issues into categories of design where the majority of components are...

Tags: Software, Information System, Distributed System, Object-oriented, iCMG, Ooa/Ood/Oop, Strategy, Software Development, Software/Web Development, Management

White papers 2009-01-01

High Fidelity Denial of Service (DoS) Experimentation

Experimentation with security attacks introduces additional requirements compared to traditional networking and distributed system experiments. High capacity attack flows can push systems beyond their expected operational regions, and expose unexpected behaviors. Many popular simulation and emulation environments fail to account for such behaviors, and incorrect results have been reported based...

Tags: Purdue University, Denial Of Service, Experiment, Fidelity Investments, Experimentation, Distributed System, Security

White papers 2009-01-01

Troubleshooting Distributed Systems Via Data Mining

Through massive parallelism, distributed systems enable the multiplication of productivity. Unfortunately, increasing the scale of available machines to users will also multiply debugging when failure occurs. Data mining allows the extraction of patterns within large amounts of data and therefore forms the foundation for a useful method of debugging, particularly...

Tags: Distributed System, University Of Notre Dame, Data Mining, Business Intelligence, Marketing Research, Enterprise Software, Software, Data Management, Marketing

White papers 2009-01-01

Model Driven Security Management: Making Security Management Manageable in Complex Distributed Systems

Today, the challenge in security of complex distributed systems does not anymore lie in encryption or access control of a single middleware platform, but in the protection of the system as a whole. This includes the definition of correct security policies at various abstraction layers, and also in the unified...

Tags: Security Management, Access Control, Distributed System, ObjectSecurity, Security

White papers 2008-09-03

BMC CONTROL-M Version 6.4 for Distributed Systems - What's All the Buzz About!

This webcast will introduce many of the new and exciting features found in the upcoming CONTROL-M release. The attendee will find out how this version can help to run the business.

Tags: BMC Software Inc., Distributed System, BMC CONTROL-M, It Management, It service Management

Webcasts 2008-09-03

Using Real Options to Select Stable Middleware - Induced Software Architectures

The requirements that force decisions towards building distributed system architectures are usually of non-functional nature. Scalability, openness, heterogeneity, and fault-tolerance are examples of such non-functional requirements. The current trend is to build distributed systems with middleware, which provide the application developer with primitives for managing the complexity of distribution, system...

Tags: System Architecture, Distributed System, Requirement, University College London, Middleware, Enterprise Software, Software

White papers 2008-08-08

Hierarchical Load Balancing in Large Distributed Systems

This paper describes a hierarchical load balancing system intended for use within large cluster computing systems. The load balancing algorithm is able to deal with situations where the tasks have different requirements with respect to CPU time and other resources, and the available computers are correspondingly able to offer different...

Tags: Load Balancing, Distributed System, Load Balancing Algorithm, Network Technology, Networking

White papers 2008-01-01

Short Paper: Troubleshooting Distributed Systems Via Data Mining

Through massive parallelism, distributed systems enable the multiplication of productivity. Unfortunately, increasing the scale of available machines to users will also multiply debugging when failure occurs. Data mining allows the extraction of patterns within large amounts of data and therefore forms the foundation for a useful method of debugging, particularly...

Tags: Distributed System, University Of Notre Dame, Data Mining, Business Intelligence, Marketing Research, Enterprise Software, Software, Data Management, Marketing

White papers 2008-01-01

Adapting the Web Interface: An Adaptive Web Browser

The growing number of mobile computing devices with diverse characteristics creates a requirement for seamless device independent access to computing resources of distributed systems. One of the most common applications in distributed systems is the Web browser, which is not only used to access resources on the Internet but also...

Tags: Web, Network, Mobile Computing, Web Interface, Web Browser, Distributed System, University Of Queensland, Web Browsers, Internet

White papers 2008-01-01

An XML-Based Protocol for Distributed Event Services

A recent trend in distributed computing is the construction of high-performance distributed systems called computational grids. One difficulty they have encountered is that there is no standard format for the representation of performance information and no standard protocol for transmitting this information. This limits the types of performance analysis that...

Tags: Performance, XML, Distributed System, Performance Management, Human Resources, Workforce Management

White papers 2008-01-01

Buffered Coscheduling: A New Methodology for Multitasking Parallel Jobs on Distributed Systems

Buffered coscheduling is a scheduling methodology for time-sharing communicating processes in parallel and distributed systems. The methodology has two primary features: communication buffering and strobing. With communication buffering, communication generated by each processor is buffered and performed at the end of regular intervals to amortize communication and scheduling overhead. This...

Tags: Job, Communication, Distributed System, Los Alamos National Laboratory, Buffered Coscheduling

White papers 2008-01-01

Sinfonia: A New Paradigm for Building Scalable Distributed Systems

This paper proposes a new paradigm for building scalable distributed systems. One's approach does not require dealing with message-passing protocols - a major complication in existing distributed systems. Instead, developers just design and manipulate data structures within the service called Sinfonia. Sinfonia keeps data for applications on a set of...

Tags: Association For Computing Machinery, Distributed System, Sinfonia

White papers 2007-10-17

A Truthful Mechanism for Fair Load Balancing in Distributed Systems

This paper considers the problem of designing load balancing protocols in distributed systems where the participants (e.g. computers, users) are capable of manipulating the load allocation algorithm in their own interest. Using techniques from mechanism design theory a mechanism for fair load balancing is designed in heterogeneous distributed systems. It...

Tags: Mechanism, Load Balancing, Distributed System, Network Technology, Networking

White papers 2007-09-11

Multiple Ant Colonies Optimization for Load Balancing in Distributed Systems

Ant Colony Optimization ACO has proved its success as a meta-heuristic optimization in several network applications such as routing and load balancing. In this paper, a proposed ACO algorithm for load balancing in distributed systems will be presented. This algorithm is fully distributed in which information is dynamically updated at...

Tags: Optimization, Network, Load Balancing, Distributed System, Ant Colony Optimization, Network Technology, Networking

White papers 2007-04-11

Optimizing Across Interfaces

Programmers writing distributed systems are poorly served by current optimization technologies. Although there are well-known ways to improve performance - batching requests, caching results, speculation and so on - these must be applied manually, adding to the burden already faced when writing distributed systems. In this paper it is argued...

Tags: Performance, Distributed System, Performance Management, Human Resources, Workforce Management

White papers 2007-01-04

Real-Time End-to-End Network Monitoring in Large Distributed Systems

Measuring real-time end-to-end network path performance metrics is important for several distributed applications such as media streaming systems (e.g., for switching to paths with higher bandwidth and lower jitter) and content distribution systems (e.g., for selecting servers with lower latency). However, it is challenging to perform such end-to-end pairwise measurements...

Tags: Network, University Of Texas, Distributed System, Network Monitoring, Networking

White papers 2006-12-02

Building Scalable, High Performance Cluster and Grid Networks: The Role of Ethernet

A Grid computer is a hardware and software system that integrates a collection of distributed system components (e.g., computer systems, storage, etc.) making them appear to the user as a single, large "virtualized" computing system. The basic "single system" concept may be applied to the construction of centralized "cluster" computers...

Tags: Force10 Networks Inc., Ethernet, Network, High-performance, Distributed System, Computer, Grid Computer, Productivity

White papers 2006-11-01

A Service Oriented Architecture Supporting Data Interoperability for Payments Card Processing Systems

As the size of an organization grows, so does the tension between a centralized system for the management of data, metadata, derived data, and business intelligence and a distributed system. With a centralized system, it is easier to maintain the consistency, accuracy, and timeliness of data. On the other hand...

Tags: Visa Inc., Card, Interoperability, Payment, SOA, Distributed System, Data Interoperability, Service-Oriented Architecture (SOA), Enterprise Software, Web Services, Software

White papers 2006-09-27

Dynamic Load Balancing in Distributed Systems in the Presence of Delays: A Regeneration-Theory Approach

A regeneration-theory approach is undertaken to analytically characterize the average overall completion time in a distributed system. The approach considers the heterogeneity in the processing rates of the nodes as well as the randomness in the delays imposed by the communication medium. The optimal one-shot load balancing policy is developed...

Tags: Load Balancing, Distributed System, University Of New Mexico, Load Balancing Policy, Network Technology, Networking

White papers 2005-12-29