Migrating Large-Scale Services to the CloudThis book reveals the technical challenges and successful implementation details of migrating MSN, Microsoft's consumer content portal - a business with 450 million worldwide users - into the Cloud. Following a technique long used in aviation, medicine, and other fields, MSN's Chief Technical Officer, Eric Passmore, describes the set of release, deployment, monitoring, and mitigation checklists used to build cloud services supporting hundreds of millions of users on Azure, Microsoft's Public Cloud.
An undertaking of this scale - involving services supported by a large team of engineers - involves unique challenges and risks. This book demonstrates through personal experience how to cut through the theory and provides checklists as a surprisingly simple antidote to the competing methodologies. ...
Moodle 3 Administration, 3rd EditionMoodle is the de facto standard for open source learning platforms. However, setting up and managing a learning environment can be a complex task since it covers a wide range of technical, organizational, and pedagogical topics. This ranges from basic user and course management, to configuring plugins and design elements, all the way to system settings, performance optimization, events frameworks, and so on.
This book concentrates on basic tasks such as how to set up and configure Moodle and how to perform day-to-day administration activities, and progresses on to more advanced topics that show you how to customize and extend Moodle, manage courses, cohorts, and users, and how to work with roles and capabilities. You'll learn to configure Moodle plugins and ensure your VLE conforms to pedagogical and technical requirements in your organization. You'll then learn how to integrate the VLE via web services and network it with other sites, including Mahara, and extend your system via pl ...
Practical Hadoop MigrationRe-architect relational applications to NoSQL, integrate relational database management systems with the Hadoop ecosystem, and transform and migrate relational data to and from Hadoop components. This book covers the best-practice design approaches to re-architecting your relational applications and transforming your relational data for usage with the Hadoop ecosystem while considering concurrency, security, denormalization, and optimal performance.
Winner of IBM's 2012 Gerstner Award for his implementation of big data and data warehouse initiatives and author of Practical Hadoop Security, author Bhushan Lakhe walks you through the entire transition process. First, he lays out the criteria for deciding what blend of re-architecting, migration, and integration between RDBMS and HDFS best meets your transition objectives. Then he demonstrates how to design your transition model.
Hadoop/NoSQL solutions do not offer by default certain relational technology features such as role-based ...
Raspberry Pi Networking Cookbook, 2nd EditionWith increasing interest in Maker Projects and the Internet of Things (IoT), students, scientists, and hobbyists are using the Raspberry Pi as a reliable, inexpensive platform to connect local devices to Internet services.
This book begins with recipes that are essential to installing the Raspberry Pi and configuring it for network access. Then it continues with recipes on installing common networking services such as firewalls and file sharing.
The final chapters include recipes for network monitoring, streaming data from the Raspberry Pi to IoT services, and using clusters of Raspberry Pis to store and analyze large volumes of data. ...
Test-Driving JavaScript ApplicationsDesign and code JavaScript applications with automated tests. Writing meaningful tests is a skill that takes learning, some unlearning, and a lot of practice, and with this book, you'll hone that skill. Fire up the editor and get hands-on through practical exercises for effective automated testing and designing maintainable, modular code.
Start by learning when and why to do manual testing vs. automated verification. Focus tests on the important things, like the pre-conditions, the invariants, complex logic, and gnarly edge cases. Then begin to design asynchronous functions using automated tests. Carefully decouple and mock out intricate dependencies such as the DOM, geolocation API, file and database access, and Ajax calls to remote servers.
Step by step, test code that uses Node.js, Express, MongoDB, jQuery, and AngularJS. Know when and how to use tools such as Chai, Istanbul, Karma, Mocha, Protractor, and Sinon. Create tests with minimum effort and run them fast without having ...
Data Science Essentials in PythonData science is one of the fastest-growing disciplines in terms of academic research, student enrollment, and employment. Python, with its flexibility and scalability, is quickly overtaking the R language for data-scientific projects. Keep Python data-science concepts at your fingertips with this modular, quick reference to the tools used to acquire, clean, analyze, and store data.
This one-stop solution covers essential Python, databases, network analysis, natural language processing, elements of machine learning, and visualization. Access structured and unstructured text and numeric data from local files, databases, and the Internet. Arrange, rearrange, and clean the data. Work with relational and non-relational databases, data visualization, and simple predictive analysis (regressions, clustering, and decision trees). See how typical data analysis problems are handled. And try your hand at your own solutions to a variety of medium-scale projects that are fun to work on and look g ...
Seven Mobile Apps in Seven WeeksUnderstanding the idioms, patterns, and quirks of the modern mobile platforms gives you the power to choose how you develop. Over seven weeks you'll build seven different mobile apps using seven different tools. You'll start out with Mobile Web; develop native apps on iOS, Android, and Windows; and finish by building apps for multiple operating systems using the native cross-platform solutions RubyMotion, React Native, and Xamarin.
For each platform, you'll build simple, but non-trivial, apps that consume JSON data, run on multiple screen sizes, or store local data. You'll see how to test, how to build views, and how to structure code. You'll find out how much code it's possible to share, how much of the underlying platform you still need to know, and ultimately, you'll get a firm understanding of how to build apps on whichever devices your users prefer.
This book gives you enough first-hand experience to weigh the trade-offs when building mobile apps. You'll compare writing apps on ...
Troubleshooting NetScalerNetScaler is a high performance Application Delivery Controller (ADC). Making the most of it requires knowledge that straddles the application and networking worlds.
As an ADC owner you will also likely be the first person to be solicited when your business applications fail. You will need to be quick in identifying if the problem is with the application, the server, the network, or NetScaler itself.
This book provides you with the vital troubleshooting knowledge needed to act fast when issues happen. It gives you a thorough understanding of the NetScaler layout, how it integrates with the network, and what issues to expect when working with the traffic management, authentication, NetScaler Gateway and application firewall features. We will also look at what information to seek out in the logs, how to use tracing, and explore utilities that exist on NetScaler to help you find the root cause of your issues. ...
User Group LeadershipThis book is about starting and sustaining a technology user group. User groups are a wonderful way to connect with local and like - inded professionals for networking and learning. All the forums and social media on the internet can't replace face-to-face time spent discussing problems, upcoming technologies, and other pertinent topics. What every user group needs is leaders to organize meetings, find speakers, and connect the community.
What every leader needs is good advice and guidance on how to begin a group and nurture new leadership to keep the group sustainable, and Michelle Malcher provides just that right sort of guidance in her book on User Group Leadership. This book is designed to help you understand what goes into starting and building a user group, giving you the tools and resources to do so. Learn what to expect before your first meeting, in the first three months, and in the first year. ...
Windows To GoDiscover how to use, manage, deploy, and secure Windows To Go, the ultimate mobile edition of Windows 10, designed to boot directly from a USB stick. This book shows you how to use your Windows To Go drive to work at home and on the move and access local and network resources from anywhere. Readers responsible for deploying Windows To Go drives will also learn how to plan for, provision, deploy, and manage Windows To Go devices in the workplace in order to create an effective mobility solution for their users.
A Windows To Go drive can be booted on any PC that meets the Windows 7 or later certification requirements, regardless of the operating system running on that PC. ...