A Primer on Database Replication
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A Primer on Database Replication

About the Book

In this very short book (~60 pages) you will learn about how databases can be replicated, the different approaches that are available and their tradeoffs. Here's what will be covered:

* What Database Replication is what why we might want it

* An introduction to the CAP theorem

* Asynchronous replication

* Synchronous replication

* Single leader replication

* Multi leader replication  

* Dealing with replication conflicts 

* DDL replication  

* The topologies of a multi leader setup 

* Leaderless replication 

* Quorums 

* Replication lag  

* Read-your-writes consistency  

* Monotonic Reads consistency  

* Bounded Staleness consistency 

* Delayed replicas 

* Statement-based replication  

* Log Shipping replication  

* Row-based replication 

About the Author

Brian Storti
Brian Storti

Hi! I'm Brian (@brianstorti) and I've been writing software professionally since 2007. I currently work as a Principal Infrastructure Engineer at AlphaSights, and was a Senior Consultant at ThoughtWorks before that. I also have a blog.

These days I spend most of my time working with Kubernetes and helping engineering teams.

Table of Contents

  • * Before we start, some background
  • * First things first, the What and the Why
  • * The obligatory CAP introduction
  • * A word about latency
  • * Asynchronous replication
  • * Synchronous replication
  • * Single leader replication
  • * The challenges of an automatic failover
  • * Multi leader replication
  • * Dealing with conflicts
  • * DDL replication
  • * The topologies of a multi leader setup
  • * And yes, leaderless replication
  • * Quorums
  • * Replication lag
  • * Read-your-writes consistency
  • * Monotonic Reads consistency
  • * Bounded Staleness consistency
  • * Delayed replicas
  • * Replication under the hood
  • * Statement-based replication
  • * Log Shipping replication
  • * Row-based replication
  • * Diving deeper

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