Book Image

Connecting the Data: Data Integration Techniques for Building an Operational Data Store (ODS)

By : Angelo Bobak
Book Image

Connecting the Data: Data Integration Techniques for Building an Operational Data Store (ODS)

By: Angelo Bobak

Overview of this book

When organizations change or enhance their internal structures, business data integration is a complex problem that they must resolve. This book describes the common hurdles you might face while working with data integration and shows you various ways to overcome these challenges. The book begins by explaining the foundational concepts of ODS. Once familiar with schema integration, you?ll learn how to reverse engineer each data source for creating a set of data dictionary reports. These reports will provide you with the metadata necessary to apply the schema integration process. As you progress through the chapters, you will learn how to write scripts for populating the source databases and spreadsheets, as well as how to use reports to create Extract, Transform, and Load (ETL) specifications. By the end of the book, you will have the knowledge necessary to design and build a small ODS.
Table of Contents (17 chapters)
Free Chapter
1
Section 1: Site Reliability Engineering – A Prescriptive Way to Implement DevOps
6
Section 2: Google Cloud Services to Implement DevOps via CI/CD
Appendix: Getting Ready for Professional Cloud DevOps Engineer Certification

Chapter 2: SRE Technical Practices – Deep Dive

Reliability is the most critical feature of a service or a system and should be aligned with business objectives. This alignment should be tracked constantly, meaning that the alignment needs measurement. Site reliability engineering (SRE) prescribes specific technical tools or practices that will help in measuring characteristics that define and track reliability. These tools are service-level agreements (SLAs), service-level objectives (SLOs), service-level indicators (SLIs), and error budgets.

SLAs represent an external agreement with customers about the reliability of a service. SLAs should have consequences if violated (that is, the service doesn't meet the reliability expectations), and the consequences are often monetary in nature. To ensure SLAs are never violated, it is important to set thresholds. Setting these thresholds ensures that an incident is caught and potentially addressed before repeated occurrences of...