Real Time Status Monitoring for Distributed Systems
Real Time Status Monitoring for Distributed Systems

Author: Zary Segall

Publisher:

Published: 1982

Total Pages: 197

ISBN-13:

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Work on the monitor has concentrated on three aspects: furthering the conceptual design, implementing the lower level mechanisms of the monitor and designing and implementing the relational monitor. At this point, we have a fairly complete idea of the tasks the various components perform and how these components will interact. The components are: StarMon, low level data collection under the StarOS operating system on CM*, consisting of two processes: Accountant, interfaces to the Simon Accountant via the EtherNet; MonProc, performs name translation, enabling of events and miscellaneous services. Medic, low level collection under the Medusa operating system on CM*, Simon Accountant interfaces with the resident monitor (either StarMon or Medic using a system-independent protocal; Simon, the computing engine' for deriving high level information from event records; Control, accepts queries from the user in a declarative language and translates these queries into update networks for Simon. At this point, the first three components are nearing completion. Once their condition is stable, sensors will be placed throughout both StarOS and Medusa to provide a source of event records for Simon. The structure of Simon has been implemented, although more work is necessary. The Control component has been partially designed and is in the early stages of implementation. Also the a Sensor Definition facility has been designed and implemented.

Real-time Status Monitoring for Distributed Systems
Real-time Status Monitoring for Distributed Systems

Author:

Publisher:

Published: 1983*

Total Pages: 197

ISBN-13:

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Work on the monitor has concentrated on three aspects: furthering the conceptual design, implementing the lower level mechanisms of the monitor and designing and implementing the relational monitor. At this point, we have a fairly complete idea of the tasks the various components perform and how these components will interact. The components are: StarMon, low level data collection under the StarOS operating system on CM*, consisting of two processes: Accountant, interfaces to the Simon Accountant via the EtherNet; MonProc, performs name translation, enabling of events and miscellaneous services. Medic, low level collection under the Medusa operating system on CM*, Simon Accountant interfaces with the resident monitor (either StarMon or Medic using a system-independent protocal; Simon, the computing engine' for deriving high level information from event records; Control, accepts queries from the user in a declarative language and translates these queries into update networks for Simon. At this point, the first three components are nearing completion. Once their condition is stable, sensors will be placed throughout both StarOS and Medusa to provide a source of event records for Simon. The structure of Simon has been implemented, although more work is necessary. The Control component has been partially designed and is in the early stages of implementation. Also the a Sensor Definition facility has been designed and implemented.

Site Reliability Engineering
Site Reliability Engineering

Author: Niall Richard Murphy

Publisher: "O'Reilly Media, Inc."

Published: 2016-03-23

Total Pages: 552

ISBN-13: 1491951176

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The overwhelming majority of a software system’s lifespan is spent in use, not in design or implementation. So, why does conventional wisdom insist that software engineers focus primarily on the design and development of large-scale computing systems? In this collection of essays and articles, key members of Google’s Site Reliability Team explain how and why their commitment to the entire lifecycle has enabled the company to successfully build, deploy, monitor, and maintain some of the largest software systems in the world. You’ll learn the principles and practices that enable Google engineers to make systems more scalable, reliable, and efficient—lessons directly applicable to your organization. This book is divided into four sections: Introduction—Learn what site reliability engineering is and why it differs from conventional IT industry practices Principles—Examine the patterns, behaviors, and areas of concern that influence the work of a site reliability engineer (SRE) Practices—Understand the theory and practice of an SRE’s day-to-day work: building and operating large distributed computing systems Management—Explore Google's best practices for training, communication, and meetings that your organization can use

Distributed Real-Time Systems
Distributed Real-Time Systems

Author: K. Erciyes

Publisher: Springer

Published: 2019-07-23

Total Pages: 348

ISBN-13: 3030225704

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This classroom-tested textbook describes the design and implementation of software for distributed real-time systems, using a bottom-up approach. The text addresses common challenges faced in software projects involving real-time systems, and presents a novel method for simply and effectively performing all of the software engineering steps. Each chapter opens with a discussion of the core concepts, together with a review of the relevant methods and available software. This is then followed with a description of the implementation of the concepts in a sample kernel, complete with executable code. Topics and features: introduces the fundamentals of real-time systems, including real-time architecture and distributed real-time systems; presents a focus on the real-time operating system, covering the concepts of task, memory, and input/output management; provides a detailed step-by-step construction of a real-time operating system kernel, which is then used to test various higher level implementations; describes periodic and aperiodic scheduling, resource management, and distributed scheduling; reviews the process of application design from high-level design methods to low-level details of design and implementation; surveys real-time programming languages and fault tolerance techniques; includes end-of-chapter review questions, extensive C code, numerous examples, and a case study implementing the methods in real-world applications; supplies additional material at an associated website. Requiring only a basic background in computer architecture and operating systems, this practically-oriented work is an invaluable study aid for senior undergraduate and graduate-level students of electrical and computer engineering, and computer science. The text will also serve as a useful general reference for researchers interested in real-time systems.

Design Guidelines for a Monitoring Environment Concerning Distributed Real-time Systems
Design Guidelines for a Monitoring Environment Concerning Distributed Real-time Systems

Author: Aida Omerovic

Publisher: Fagbokforlaget

Published: 2004

Total Pages: 208

ISBN-13:

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While the dependability requirements of distributed real-time systems are expanding, there is currently no framework for defining and mapping these requirements into the system design and operation. A method of controlling and achieving the dependability level is real-time monitoring, which measures the degree of requirements fulfilment, relates it to the pre-defined, measurable system-level expectations and dynamically adapts the system, based on quality metrics, risk analysis, cost evaluation, control theory, neural networks, data acquisition and system knowledge management. The book deduces a framework to reveal, define, quantify, measure, analyse, design, implement, test, monitor and enhance dependability (functional and non-functional) requirements of a distributed system with real-time constraints. It is presented how the framework can be applied throughout all life-cycle stages, under varying constraints and with maximised cost effectiveness. An overview of the tools and methodologies applicable has been given and an integrated and generalised architecture for ensuring continuous fulfilment of system requirements, proposed. The framework provides a multilevel specification mechanism to establish the preservation of system requirements. This ensures the correct functioning of system through adaptations at run time. Among the benefits are controlled access and coordinated resource sharing in accordance with service-level agreement policies, multi-stakeholder interest preservation, transparency with respect to location, naming, performance etc., achievement of quality of service on demand, decentralisation, seamless integration of resources and applications, as well as increased predictability. READERSHIP: The intended audience is broad: real time and distributed systems scientists and developers, software engineers, students, quality assurance managers, contractors, users, service providers and all those searching for an alternative approach to handling and ensuring automated control of fulfilment of system requirements. Moreover, those needing a handbook on contract negotiations and a method of tracing operational results back into system requirements of long lived projects with high dependability and integrity demands.

E-Business and Distributed Systems Handbook
E-Business and Distributed Systems Handbook

Author: Amjad Umar

Publisher: nge solutions, inc

Published: 2003

Total Pages: 180

ISBN-13: 9780972741415

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"This is overview of an extensive handbook that systematically discusses how to translate e-business strategies to working solutions by using the latest distributed computing technologies. This module of the handbook paints the big picture of the Next Generation Real-time Enterprises with numerous case studies to highlight the key points. "