Search results for ""Author Charles Bell""

Server bottlenecks and failures are a fact of life in any database deployment, but they don't have to bring everything to a halt. This practical book explains replication, cluster, and monitoring features that can help protect your MySQL system from outages, whether it's running on hardware, virtual machines, or in the cloud. Written by engineers who designed many of the tools covered, this book reveals undocumented or hard-to-find aspects of MySQL reliability and high availability - knowledge that's essential for any organization using this database system. This second edition describes extensive changes to MySQL tools. Versions up to 5.5 are covered, along with several 5.6 features. Learn replication fundamentals, including use of the binary log and MySQL Replicant Library Handle failing components through redundancy Scale out to manage read-load increases, and use data sharding to handle large databases and write-load increases Store and replicate data on individual nodes with MySQL Cluster Monitor database activity and performance, and major operating system parameters Keep track of masters and slaves, and deal with failures and restarts, corruption, and other incidents Examine tools including MySQL Enterprise Monitor, MySQL Utilities, and GTIDs

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The disturbing truth: school suspension does more than impede Black students' academic achievement—it also impacts their parents' employment and can violate state and federal laws.Finalist of the C. Wright Mills Award by the Society for the Study of Social ProblemsDecades of urban disinvestment and poverty have made educational attainment for Black youth more vital than at any time in recent history. Yet in their pursuit of quality education, many Black families are burdened by challenging barriers to success, most notably the frequency and severity of school punishment. Such punishment is meant to be a disciplinary tool that makes schools safer, but it actually does the opposite—and is particularly harmful for Black students and their families.Focusing on schools in inner-city and suburban Detroit, Charles Bell draws on 160 in-depth interviews with Black high school students, their parents, and their teachers to illuminate the negative outcomes that are associated with out-of-school suspension. Bell also sheds light on the inherent shortcomings of school safety measures as he describes how schools fail to protect Black students, which leaves them vulnerable to bullying and victimization. The students he interviews offer detailed insight into how the lack of protection they received in school intensified their fear of being harmed and even motivated them to use violence to establish a reputation that discouraged attacks. Collectively, their narratives reveal how receiving a suspension for fighting in school earned them respect, popularity, and a reputation for toughness—transforming school punishment into a powerful status symbol that destabilizes classrooms.A thought-provoking and urgent work, Suspended calls for an inclusive national dialogue on school punishment and safety reform. It will leave readers engrossed in the students' and parents' tearful narratives as they share how school suspension harmed students' grades, disrupted parents' employment, violated state and federal laws, and motivated families to withdraw from punitive districts.

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Access all the information you need to begin using the MySQL Database Service (MDS) in the Oracle Cloud Infrastructure (OCI). MDS is Oracle’s new platform as a service (PAAS) offering for open-source database users. This book covers getting started with an account in OCI, gives a brief overview of OCI services available, and provides a short tutorial on MDS. Reading this book helps you take advantage of the powerful OCI features by building your own MySQL database in the cloud. Examples in this book center around running MDS in OCI, and include several of the popular use cases as well as advice on how to implement them. In addition, you will learn more about the related MDS OCI features, such as the high availability features currently available. Finally, you will learn how to back up and restore your data as well as how to get your data into and out of the cloud. The skills you learn in this book will help you get started using MDS and letting Oracle do the heavy lifting of managing MDS operations and implementation.What You Will Learn Use Oracle Cloud Infrastructure (OCI) Deploy MySQL Database Service (MDS) systems in the cloud Connect your applications to MDS Back up and recover using the data recovery features of MDS Employ the newest high availability features of MDS Who This Book Is ForSystems engineers, developers, and database professionals who want to learn about the powerful features of the MySQL Database Service (MDS) and how to incorporate cloud-based database storage into their infrastructure and applications. Readers who are new to MySQL will appreciate the tutorial chapter, and those familiar with MySQL will learn the latest features of MDS as well as how to build inexpensive, powerful MySQL database servers in the Oracle Cloud Infrastructure (OCI).

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Quickly learn to program for microcontrollers and IoT devices without a lot of study and expense. MicroPython and controllers that support it eliminate the need for programming in a C-like language, making the creation of IoT applications and devices easier and more accessible than ever. MicroPython for the Internet of Things is ideal for readers new to electronics and the world of IoT. Specific examples are provided covering a range of supported devices, sensors, and MicroPython boards such as Pycom’s WiPy modules and MicroPython’s pyboard. Never has programming for microcontrollers been easier.The book takes a practical and hands-on approach without a lot of detours into the depths of theory. The book: Shows a faster and easier way to program microcontrollers and IoT devices Teaches MicroPython, a variant of one of the most widely used scripting languages Is friendly and accessible to those new to electronics, with fun example projects What You'll Learn Program in MicroPython Understand sensors and basic electronics Develop your own IoT projects Build applications for popular boards such as WiPy and pyboard Load MicroPython on the ESP8266 and similar boards Interface with hardware breakout boards Connect hardware to software through MicroPython Explore the easy-to-use Adafruit IO connecting your microcontroller to the cloud Who This Book Is ForAnyone interested in building IoT solutions without the heavy burden of programming in C++ or C. The book also appeals to those wanting an easier way to work with hardware than is provided by the Arduino and the Raspberry Pi platforms.

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