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Serverless Analytics with Amazon Athena

You're reading from  Serverless Analytics with Amazon Athena

Product type Book
Published in Nov 2021
Publisher Packt
ISBN-13 9781800562349
Pages 438 pages
Edition 1st Edition
Languages
Authors (3):
Anthony Virtuoso Anthony Virtuoso
Profile icon Anthony Virtuoso
Mert Turkay Hocanin Mert Turkay Hocanin
Profile icon Mert Turkay Hocanin
Aaron Wishnick Aaron Wishnick
Profile icon Aaron Wishnick
View More author details

Table of Contents (20) Chapters

Preface 1. Section 1: Fundamentals Of Amazon Athena
2. Chapter 1: Your First Query 3. Chapter 2: Introduction to Amazon Athena 4. Chapter 3: Key Features, Query Types, and Functions 5. Section 2: Building and Connecting to Your Data Lake
6. Chapter 4: Metastores, Data Sources, and Data Lakes 7. Chapter 5: Securing Your Data 8. Chapter 6: AWS Glue and AWS Lake Formation 9. Section 3: Using Amazon Athena
10. Chapter 7: Ad Hoc Analytics 11. Chapter 8: Querying Unstructured and Semi-Structured Data 12. Chapter 9: Serverless ETL Pipelines 13. Chapter 10: Building Applications with Amazon Athena 14. Chapter 11: Operational Excellence – Monitoring, Optimization, and Troubleshooting 15. Section 4: Advanced Topics
16. Chapter 12: Athena Query Federation 17. Chapter 13: Athena UDFs and ML 18. Chapter 14: Lake Formation – Advanced Topics 19. Other Books You May Enjoy

Summary

In this chapter, we learned about Athena's data sources and their different components: the metastore, data, and connector. The metastore contains metadata that Athena uses to translate tables and databases into their physical locations and process them. We delved into the information stored within a table and its key components: schema, partition columns, location, serializer/deserializer and associated properties, and table statistics.

We compared the AWS Glue Data Catalog and Apache Hive metastores when data is stored on S3 and looked at other non-S3 data sources. We went through the different ways of registering datasets into a metastore and how AWS Glue Crawlers can make it quick and easy to discover data on S3. Lastly, we looked at the data lake architecture, the different stages of data that are typical in one, and how to transform data using Athena.

Now that we have looked at our metastores and how they relate to our data in S3, we'll look at how we...

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