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Learning Apache Cassandra

By : Matthew Brown
4 (1)
Book Image

Learning Apache Cassandra

4 (1)
By: Matthew Brown

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Learning Apache Cassandra
Matthew Brown
Feb, 2015 | 246 pages
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Table of Contents (19 chapters)
Learning Apache Cassandra
Learning Apache Cassandra
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Up and Running with Cassandra
Getting Up and Running with Cassandra
What Cassandra offers, and what it doesn't
Installing Cassandra
Bootstrapping the project
Creating a keyspace
Summary
2
The First Table
The First Table
Creating the users table
Inserting data
Selecting data
Developing a mental model for Cassandra
Summary
3
Organizing Related Data
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
Summary
4
Beyond Key-Value Lookup
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
Summary
5
Establishing Relationships
Establishing Relationships
Modeling follow relationships
Storing follow relationships
Looking up follow relationships
Unfollowing users
Using secondary indexes to avoid denormalization
Summary
6
Denormalizing Data for Maximum Performance
Denormalizing Data for Maximum Performance
A normalized approach
Partial denormalization
Fully denormalizing the home timeline
Write complexity and data integrity
Summary
7
Expanding Your Data Model
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
Summary
8
Collections, Tuples, and User-defined Types
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
Summary
9
Aggregating Time-Series Data
Aggregating Time-Series Data
Recording discrete analytics observations
Recording aggregate analytics observations
Recording analytics observations
Summary
10
How Cassandra Distributes Data
How Cassandra Distributes Data
Data distribution in Cassandra
Data replication in Cassandra
Consistency
Handling conflicting data
Distributed deletion
Summary
Peeking Under the Hood
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
Summary
Authentication and Authorization
Authentication and Authorization
Enabling authentication and authorization
Setting up a user
Controlling access
Authorization in action
Security beyond authentication and authorization
Summary
Wrapping up
Index
Index

Credits

Author

Mat Brown

Reviewers

N. Bharadwaj

Mark Kerzner

Michael Klishin

Sanjay Sharma

Commissioning Editor

Akram Hussain

Acquisition Editor

Rebecca Youé

Content Development Editor

Ritika Singh

Sharvari Tawde

Technical Editor

Ruchi Desai

Copy Editors

Pranjali Chury

Merilyn Pereira

Project Coordinator

Judie Jose

Proofreaders

Simran Bhogal

Stephen Copestake

Kelly Hutchinson

Indexer

Monica Ajmera Mehta

Graphics

Sheetal Aute

Disha Haria

Production Coordinator

Conidon Miranda

Cover Work

Conidon Miranda

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