更新时间：2021-07-23 20:35:07
coverpage
Learning Apache Cassandra
Credits
About the Author
About the Reviewers
www.PacktPub.com
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Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Chapter 1. Getting Up and Running with Cassandra
What Cassandra offers and what it doesn't
Installing Cassandra
Bootstrapping the project
Creating a keyspace
Summary
Chapter 2. The First Table
Creating the users table
Inserting data
Selecting data
Developing a mental model for Cassandra
Chapter 3. Organizing Related Data
A table for status updates
Working with status updates
Anatomy of a compound primary key
Beyond two columns
Compound keys represent parent-child relationships
Coupling parents and children using static columns
Refining our mental model
Chapter 4. Beyond Key-Value Lookup
Looking up rows by partition
Retrieving status updates for a specific time range
Paginating over rows in a partition
Reversing the order of rows
Paginating over multiple partitions
Building an autocomplete function
Chapter 5. Establishing Relationships
Modeling follow relationships
Storing follow relationships
Looking up follow relationships
Unfollowing users
Using secondary indexes to avoid denormalization
Chapter 6. Denormalizing Data for Maximum Performance
A normalized approach
Partial denormalization
Fully denormalizing the home timeline
Write complexity and data integrity
Chapter 7. Expanding Your Data Model
Viewing a table schema in cqlsh
Adding columns to tables
Deleting columns
Updating the existing rows
Removing a value from a column
Inserts updates and upserts
Lightweight transactions have a cost
Chapter 8. Collections Tuples and User-defined Types
The problem with concurrent updates
Collection columns and concurrent updates
Using lists for ordered nonunique values
Using maps to store key-value pairs
Collections in inserts
Collections and secondary indexes
The limitations of collections
Working with tuples
User-defined types
Choosing between tuples and user-defined types
Comparing data structures
Chapter 9. Aggregating Time-Series Data
Recording discrete analytics observations
Recording aggregate analytics observations
Recording analytics observations
Chapter 10. How Cassandra Distributes Data
Data distribution in Cassandra
Data replication in Cassandra
Consistency
Handling conflicting data
Distributed deletion
Appendix A. Peeking Under the Hood
Using cassandra-cli
The structure of a simple primary key table
Compound primary keys in column families
Collection columns in column families
Appendix B. Authentication and Authorization
Enabling authentication and authorization
Setting up a user
Controlling access
