Emulation & Virtualization As Preservation Strategies
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Checkpoint and Restoration of Micro-Service in Docker Containers
3rd International Conference on Mechatronics and Industrial Informatics (ICMII 2015) Checkpoint and Restoration of Micro-service in Docker Containers Chen Yang School of Information Security Engineering, Shanghai Jiao Tong University, China 200240 [email protected] Keywords: Lightweight Virtualization, Checkpoint/restore, Docker. Abstract. In the present days of rapid adoption of micro-service, it is imperative to build a system to support and ensure the high performance and high availability for micro-services. Lightweight virtualization, which we also called container, has the ability to run multiple isolated sets of processes under a single kernel instance. Because of the possibility of obtaining a low overhead comparable to the near-native performance of a bare server, the container techniques, such as openvz, lxc, docker, they are widely used for micro-service [1]. In this paper, we present the high availability of micro-service in containers. We investigate capabilities provided by container (docker, openvz) to model and build the Micro-service infrastructure and compare different checkpoint and restore technologies for high availability. Finally, we present preliminary performance results of the infrastructure tuned to the micro-service. Introduction Lightweight virtualization, named the operating system level virtualization technology, partitions the physical machines resource, creating multiple isolated user-space instances. Each container acts exactly like a stand-alone server. A container can be rebooted independently and have root access, users, IP address, memory, processes, files, etc. Unlike traditional virtualization with the hypervisor layer, containerization takes place at the kernel level. Most modern operating system kernels now support the primitives necessary for containerization, including Linux with openvz, vserver and more recently lxc, Solaris with zones, and FreeBSD with Jails [2]. -
Adobe Application Manager Enterprise Edition Deployment Guide
ADOBE® APPLICATION MANAGER ENTERPRISE EDITION GUIDE DE DEPLOIEMENT EN ENTREPRISE Adobe® Application Manager Enterprise Edition version 3.1 Version de document 3.1 Date du document : Septembre 2012 © 2012 Adobe Systems Incorporated and its licensors. All rights reserved. Adobe® Application Manager Enterprise Edition Guide de déploiement en entreprise This guide is licensed for use under the terms of the Creative Commons Attribution Non-Commercial 3.0 License. This License allows users to copy, distribute, and transmit the guide for noncommercial purposes only so long as (1) proper attribution to Adobe is given as the owner of the guide; and (2) any reuse or distribution of the guide contains a notice that use of the guide is governed by these terms. The best way to provide notice is to include the following link. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ Adobe, the Adobe logo, Acrobat, Adobe Audition, Adobe Bridge, Adobe Device Central, Adobe OnLocation, Adobe Premiere, Adobe Premiere Pro, Adobe Technical Communication Suite, After Effects, Contribute, Captivate, Creative Suite, CS Live, Dreamweaver, Encore, Fireworks, Flash, Flash Builder, Flash Catalyst, FrameMaker, Illustrator, InDesign, Photoshop, RoboHelp, SiteCatalyst, and Soundbooth are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries. Apple, Mac, and Mac OS are trademarks of Apple Inc., registered in the United States and other countries. Microsoft, Windows, and Windows Vista are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. UNIX is a registered trademark of The Open Group in the US and other countries. -
Variational Text Linguistics: Revisiting Register in English
Christoph Schubert and Christina Sanchez-Stockhammer (Eds.) Variational Text Linguistics Topics in English Linguistics Editors Elizabeth Closs Traugott Bernd Kortmann Volume 90 Variational Text Linguistics Revisiting Register in English Edited by Christoph Schubert Christina Sanchez-Stockhammer ISBN 978-3-11-044310-3 e-ISBN (PDF) 978-3-11-044355-4 e-ISBN (EPUB) 978-3-11-043533-7 ISSN 1434-3452 Library of Congress Cataloging-in-Publication Data A CIP catalog record for this book has been applied for at the Library of Congress. Bibliographic information published by the Deutsche Nationalbibliothek The Deutsche Nationalbibliothek lists this publication in the Deutsche Nationalbibliografie; detailed bibliographic data are available on the Internet at http://dnb.dnb.de. © 2016 Walter de Gruyter GmbH, Berlin/Boston Cover image: Brian Stablyk/Photographer’s Choice RF/Getty Images Typesetting: fidus Publikations-Service GmbH, Nördlingen Printing and binding: CPI books GmbH, Leck ♾ Printed on acid-free paper Printed in Germany www.degruyter.com Acknowledgements The foundations for this edited collection of articles were laid at the interna- tional conference Register revisited: New perspectives on functional text variety in English, which took place at the University of Vechta, Germany, from June 27 to 29, 2013. The aim of the present volume is to conserve the research papers and many inspiring discussions which were stimulated then and to make them available to a larger audience. It was only possible to achieve this aim thanks to the help of many people joining us in the effort. First and foremost, we would like to thank all contributors for their continued cooperation in this project. -
“The Future Is Open” for Composition Studies: a New
THE FLORIDA STATE UNIVERSITY COLLEGE OF ARTS AND SCIENCES “THE FUTURE IS OPEN” FOR COMPOSITION STUDIES: A NEW INTELLECTUAL PROPERTY MODEL IN THE DIGITAL AGE By CHARLES LOWE A Dissertation submitted to the Department of English in partial fulfillment of the requirements for the degree of Doctor of Philosophy Degree Awarded Summer Semester, 2006 Copyright © 2006 Charles Lowe All Rights Reserved The members of the committee approve the dissertation of Charles Lowe defended on May 25, 2006. ______________________________ John Fenstermaker Professor Directing Dissertation ______________________________ Ernest Rehder Outside Committee Member ______________________________ Eric Walker Committee Member ______________________________ Deborah Coxwell-Teague Committee Member Approved: ______________________________ Hunt Hawkins, Chair, Department of English The Office of Graduate Studies has verified and approved the above named committee members. ii This text is dedicated to Wendy Bishop, John Lovas, Candace Spigelman, and Richard Straub, four teachers and researchers in the field of composition studies with whom it was my pleasure to work. I only wish I could have the opportunity again. iii TABLE OF CONTENTS ABSTRACT...............................................................................................................................vi INTRODUCTION.......................................................................................................................1 The Future Is Open............................................................................................................. -
Biology 3596B – Genomics and Beyond – Winter 2021
Department of Biology BIOLOGY 3596B – GENOMICS AND BEYOND – WINTER 2021 Welcome to Bio 3596! My goal is to help you learn and be successful! Please, read and keep this course outline handy, because it is an official document that contains important course information. 1. General Course Information ...................................................................................................................................... 2 1.1. Course Information ............................................................................................................................ 2 Course description .............................................................................................................................................................. 2 List of Prerequisites ............................................................................................................................................................ 2 Mode of delivery ................................................................................................................................................................ 2 Technical requirements: ..................................................................................................................................................... 2 1.2. Online Participation and Engagement: contribution to community learning ....................................... 3 1.3. Key Sessional Dates ........................................................................................................................... -
The Internet Archive: an Interview with Brewster Kahle Brewster Kahle and Ana Parejo Vadillo
The Internet Archive: An Interview with Brewster Kahle Brewster Kahle and Ana Parejo Vadillo Rumour has it that one of the candidates for Librarian of Congress is Brewster Kahle, the founder and director of the non-profit digital library Internet Archive.1 That he may be considered for the post is a testament to Kahle’s commitment to mass digitization, the cornerstone of modern librarianship. A visionary of the digital preservation of knowledge and an outspo- ken advocate of the open access movement (the memorial for the Internet activist Aaron Swartz was held at the Internet Archive’s headquarters in San Francisco), Kahle has been part of the many ventures that have created our cyber age. At MIT, he was on the project team of Thinking Machines, a precursor of the World Wide Web. In 1989 he created WAIS (Wide Area Information Server), the first electronic publishing system, which was designed to search and make information available. He left Thinking Machines to focus on his newly founded company, WAIS, Inc., which was sold to AOL two years later for a reported $15 million. In 1996 he co- founded Alexa Internet, which was built on the principles of collecting Web traffic data and analysis.2 The company was named after the Library of Alexandria, the largest repository of knowledge in the ancient world, to highlight the potential of the Internet to become such a custodian. It was sold for c. $250 million in stock to Amazon, which uses it for data mining. Alongside Alexa Internet, in 1996 Kahle founded the Internet Archive to archive Web culture (Fig. -
HTTP Cookie - Wikipedia, the Free Encyclopedia 14/05/2014
HTTP cookie - Wikipedia, the free encyclopedia 14/05/2014 Create account Log in Article Talk Read Edit View history Search HTTP cookie From Wikipedia, the free encyclopedia Navigation A cookie, also known as an HTTP cookie, web cookie, or browser HTTP Main page cookie, is a small piece of data sent from a website and stored in a Persistence · Compression · HTTPS · Contents user's web browser while the user is browsing that website. Every time Request methods Featured content the user loads the website, the browser sends the cookie back to the OPTIONS · GET · HEAD · POST · PUT · Current events server to notify the website of the user's previous activity.[1] Cookies DELETE · TRACE · CONNECT · PATCH · Random article Donate to Wikipedia were designed to be a reliable mechanism for websites to remember Header fields Wikimedia Shop stateful information (such as items in a shopping cart) or to record the Cookie · ETag · Location · HTTP referer · DNT user's browsing activity (including clicking particular buttons, logging in, · X-Forwarded-For · Interaction or recording which pages were visited by the user as far back as months Status codes or years ago). 301 Moved Permanently · 302 Found · Help 303 See Other · 403 Forbidden · About Wikipedia Although cookies cannot carry viruses, and cannot install malware on 404 Not Found · [2] Community portal the host computer, tracking cookies and especially third-party v · t · e · Recent changes tracking cookies are commonly used as ways to compile long-term Contact page records of individuals' browsing histories—a potential privacy concern that prompted European[3] and U.S. -
Running Telecom/TT-Link and Trafman Under Windows 7 (And Up) Using Dosbox
Running Telecom/TT-Link and Trafman under Windows 7 (and up) using DOSbox 3/31/2014 Documentation written for: Telecom/TT-Link V3.97 or later. TrafMan V6.43 or later. DOSbox V0.74 or later. COM/IP V4.9.5 or later. TrafMan & Telecom/TT-Link on Windows 7 Page 1 of 10 I. Introduction and Initial Emulator Setup Microsoft discontinued support for MS-DOS level programs starting with Windows 7. This has made the operation of Telecom/TT-Link and TrafMan on systems with a Windows 7 or later operating systems problematical, to say the least. However, it is possible to achieve functionality (with some limits) even on a Windows 7 computer by using what is known as a “DOS Emulator”. Emulator’s simulate the conditions of an earlier operating system on a later one. For example, one of the most common emulators is called DOSbox (http://sourceforge.net/projects/dosbox/ ) and it is available as a free download for both PC and Mac computers. DOSbox creates an artificial MS-DOS level environment on a Windows 7 computer. Inside this environment you can run most DOS programs, including TrafMan and Telecom/TT-Link. This document describes how to utilize the DOSbox emulator for running Telecom/TT-Link and TrafMan. It should be noted, however, that other emulators may also work and this document can serve as a guide for setting up and using similar DOS emulators as they are available. Initial DOSbox Emulator Setup: 1) Download the latest release of DOSbox (0.74 or later) to your PC and install it. -
Evaluating and Improving LXC Container Migration Between
Evaluating and Improving LXC Container Migration between Cloudlets Using Multipath TCP By Yuqing Qiu A thesis submitted to the Faculty of Graduate and Postdoctoral Affairs in partial fulfillment of the requirements for the degree of Master of Applied Science in Electrical and Computer Engineering Carleton University Ottawa, Ontario © 2016, Yuqing Qiu Abstract The advent of the Cloudlet concept—a “small data center” close to users at the edge is to improve the Quality of Experience (QoE) of end users by providing resources within a one-hop distance. Many researchers have proposed using virtual machines (VMs) as such service-provisioning servers. However, seeing the potentiality of containers, this thesis adopts Linux Containers (LXC) as Cloudlet platforms. To facilitate container migration between Cloudlets, Checkpoint and Restore in Userspace (CRIU) has been chosen as the migration tool. Since the migration process goes through the Wide Area Network (WAN), which may experience network failures, the Multipath TCP (MPTCP) protocol is adopted to address the challenge. The multiple subflows established within a MPTCP connection can improve the resilience of the migration process and reduce migration time. Experimental results show that LXC containers are suitable candidates for the problem and MPTCP protocol is effective in enhancing the migration process. i Acknowledgement I would like to express my sincerest gratitude to my principal supervisor Dr. Chung-Horng Lung who has provided me with valuable guidance throughout the entire research experience. His professionalism, patience, understanding and encouragement have always been my beacons of light whenever I go through difficulties. My gratitude also goes to my co-supervisor Dr. -
Features Guide [email protected] Table of Contents
Features Guide [email protected] Table of Contents About Us .................................................................................. 3 Make Firefox Yours ............................................................... 4 Privacy and Security ...........................................................10 The Web is the Platform ...................................................11 Developer Tools ..................................................................13 2 About Us About Mozilla Mozilla is a global community with a mission to put the power of the Web in people’s hands. As a nonprofit organization, Mozilla has been a pioneer and advocate for the Web for more than 15 years and is focused on creating open standards that enable innovation and advance the Web as a platform for all. We are committed to delivering choice and control in products that people love and can take across multiple platforms and devices. For more information, visit www.mozilla.org. About Firefox Firefox is the trusted Web browser of choice for half a billion people around the world. At Mozilla, we design Firefox for how you use the Web. We make Firefox completely customizable so you can be in control of creating your best Web experience. Firefox has a streamlined and extremely intuitive design to let you focus on any content, app or website - a perfect balance of simplicity and power. Firefox makes it easy to use the Web the way you want and offers leading privacy and security features to help keep you safe and protect your privacy online. Mozilla continues to move the Web forward by pioneering new open source technologies such as asm.js, Emscripten and WebAPIs. Firefox also has a range of amazing built-in developer tools to provide a friction-free environment for building Web apps and Web content. -
Virtualization Technologies Overview Course: CS 490 by Mendel
Virtualization technologies overview Course: CS 490 by Mendel Rosenblum Name Can boot USB GUI Live 3D Snaps Live an OS on mem acceleration hot of migration another ory runnin disk alloc g partition ation system as guest Bochs partially partially Yes No Container s Cooperati Yes[1] Yes No No ve Linux (supporte d through X11 over networkin g) Denali DOSBox Partial (the Yes No No host OS can provide DOSBox services with USB devices) DOSEMU No No No FreeVPS GXemul No No Hercules Hyper-V iCore Yes Yes No Yes No Virtual Accounts Imperas Yes Yes Yes Yes OVP (Eclipse) Tools Integrity Yes No Yes Yes No Yes (HP-UX Virtual (Integrity guests only, Machines Virtual Linux and Machine Windows 2K3 Manager in near future) (add-on) Jail No Yes partially Yes No No No KVM Yes [3] Yes Yes [4] Yes Supported Yes [5] with VMGL [6] Linux- VServer LynxSec ure Mac-on- Yes Yes No No Linux Mac-on- No No Mac OpenVZ Yes Yes Yes Yes No Yes (using Xvnc and/or XDMCP) Oracle Yes Yes Yes Yes Yes VM (manage d by Oracle VM Manager) OVPsim Yes Yes Yes Yes (Eclipse) Padded Yes Yes Yes Cell for x86 (Green Hills Software) Padded Yes Yes Yes No Cell for PowerPC (Green Hills Software) Parallels Yes, if Boot Yes Yes Yes DirectX 9 Desktop Camp is and for Mac installed OpenGL 2.0 Parallels No Yes Yes No partially Workstati on PearPC POWER Yes Yes No Yes No Yes (on Hypervis POWER 6- or (PHYP) based systems, requires PowerVM Enterprise Licensing) QEMU Yes Yes Yes [4] Some code Yes done [7]; Also supported with VMGL [6] QEMU w/ Yes Yes Yes Some code Yes kqemu done [7]; Also module supported -
The Art of Virtualization with Free Software Master on Free Software 2009/2010
What is Virtualization Types of Virtualization The Art of Virtualization with Free Software Master on Free Software 2009/2010 Miguel Vidal, Jos´eCastro {mvidal,jfcastro}@libresoft.es GSyC/Libresoft – URJC April 24th, 2010 Miguel Vidal, Jos´eCastro The Art of Virtualization with Free Software What is Virtualization Types of Virtualization (cc) 2010 Miguel Vidal, Jos´eCastro. Some rights reserved. This work is licensed under a Creative Commons Attribution-Share Alike 3.0 License, available at http://creativecommons.org/licenses/by-sa/3.0/ Miguel Vidal, Jos´eCastro The Art of Virtualization with Free Software What is Virtualization Types of Virtualization Agenda Part 1: What is Virtualization Part 2: Types of Virtualization Miguel Vidal, Jos´eCastro The Art of Virtualization with Free Software What is Virtualization Types of Virtualization What is Virtualization Miguel Vidal, Jos´eCastro The Art of Virtualization with Free Software What is Virtualization Types of Virtualization What is Virtualization Hardware/software combination, which allows a computer to act as several ones. It includes making a single physical resource (such as a server, an operating system, or storage device) appears to function as multiple logical resources. Miguel Vidal, Jos´eCastro The Art of Virtualization with Free Software What is Virtualization Types of Virtualization Definitions Virtualization is a methodology of dividing the resources of a computer into multiple execution environments. Virtualization applies one or more concepts or technologies such as partitioning, time-sharing, partial or complete machine simulation, emulation, quality of service, and many others. Colloquially, virtualization refers to the abstraction of computer resources. Miguel Vidal, Jos´eCastro The Art of Virtualization with Free Software What is Virtualization Types of Virtualization Hypervisors In modern computing, Virtual Machine Monitors (aka hypervisors) allow many different OS, tasks and software configurations exist on the same physical machine.