Sam R. Alapati

If you want to excel in your work as a Linux administrator, or perhaps land a job as one, you need this book. The amount of knowledge and expertise required of Linux administrators has grown tremendously over the past 10 years. Today you need an amazing variety of skills, several of them very new. This book provides you with a sound introduction to all the technical areas you're expected to know. Learn how to create your own cloud environments with Open Cloud, administer your company's Amazon Web Services environment, or manage your big data environment. It's all here. Topics include: Change management and Version Control Automated Server Deployment Automated Configuration Continuous Integration and Continuous Delivery Virtualization (including the new lightweight container technology) Cloud Infrastructure Management Proactive Monitoring and Log Analysis Big Data Administration

Follow this handbook to build, configure, tune, and secure Apache Cassandra databases. Start with the installation of Cassandra and move on to the creation of a single instance, and then a cluster of Cassandra databases.Cassandra is increasingly a key player in many big data environments, and this book shows you how to use Cassandra with Apache Spark, a popular big data processing framework. Also covered are day-to-day topics of importance such as the backup and recovery of Cassandra databases, using the right compression and compaction strategies, and loading and unloading data. Expert Apache Cassandra Administration provides numerous step-by-step examples starting with the basics of a Cassandra database, and going all the way through backup and recovery, performance optimization, and monitoring and securing the data. The book serves as an authoritative and comprehensive guide to the building and management of simpleto complex Cassandra databases. The book:Takes you through building a Cassandra database from installation of the software and creation of a single database, through to complex clusters and data centersProvides numerous examples of actual commands in a real-life Cassandra environment that show how to confidently configure, manage, troubleshoot, and tune Cassandra databasesShows how to use the Cassandra configuration properties to build a highly stable, available, and secure Cassandra database that always operates at peak efficiencyWhat You'll LearnInstall the Cassandra software and create your first databaseUnderstand the Cassandra data model, and the internal architecture of a Cassandra databaseCreate your own Cassandra cluster, step-by-stepRun a Cassandra cluster on DockerWork with Apache Spark by connecting to a Cassandra databaseDeploy Cassandra clusters in your data center, or on Amazon EC2 instancesBack up and restore mission-critical Cassandra databasesMonitor, troubleshoot, and tune production Cassandra databases, and cut your spending on resources such as memory, servers, and storageWho This Book Is ForDatabase administrators, developers, and architects who are looking for an authoritative and comprehensive single volume for all their Cassandra administration needs. Also for administrators who are tasked with setting up and maintaining highly reliable and high-performing Cassandra databases. An excellent choice for big data administrators, database administrators, architects, and developers who use Cassandra as their key data store, to support high volume online transactions, or as a decentralized, elastic data store.

Speed up the execution of important database queries by making good choices about which indexes to create. Choose correct index types for different scenarios. Avoid indexing pitfalls that can actually have indexes hurting performance rather than helping. Maintain indexes so as to provide consistent and predictable query response over the lifetime of an application.Expert Oracle Indexing and Access Paths is about the one database structure at the heart of almost all performance concerns: the index. Database system performance is one of the top concerns in information technology today. Administrators struggle to keep up with the explosion of access and activity driven by the proliferation of computing into everything from phones to tablets to PCs in our increasingly connected world. At the heart of any good-performing database lies a sound indexing strategy that makes appropriate use of indexing, and especially of the vendor-specific indexing features onoffer.Few databases fully exploit the wealth of data access mechanisms provided by Oracle. Expert Oracle Indexing and Access Paths helps by bringing together information on indexing and how to use it into one blissfully short volume that you can read quickly and have at your fingertips for reference. Learn the different types of indexes available and when each is best applied. Recognize when queries aren’t using indexes as you intend. Manage your indexing for maximum performance. Confidently use the In Memory column store feature as an alternate access path to improve performance. Let Expert Indexing in Oracle Database 12c be your guide to deep mastery of the most fundamental performance optimization structure in Oracle Database.Explains how indexes help performance, and sometimes hinder it tooDemystifies the various index choices so that you can chose rightlyDescribes the database administration chores associated with indexesDemonstrates the use of the In Memory column store as an alternate access path to the dataWhat You Will LearnCreate an overall indexing strategy to guide your decisionsChoose the correct indexing mechanisms for your applicationsManage and maintain indices to avoid degradation and preserve efficiencyTake better advantage of underused index types such as index-organized tablesChoose the appropriate columns to index, with confidenceBlend partitioning and materialized views into your indexing strategyWho This Book Is ForAll levels of database administrators and application developers who are struggling with the database performance and scalability challenge. Any database administrator involved with indexing, which is any database administrator period, will appreciate the wealth ofadvice packed into this gem of a book.