The blueprint for a zero-downtime strategy

A Brief History of Databases

• Pre-Relational Databases

• The Relational Model

• Implementing the Relational Model

• Transactions

• The SQL Language

• The RDBMS Hegemony

• Enter the Internet

• The NoSQL Movement

• The Emergence of Distributed SQL

The Advent of CockroachDB

• CockroachDB Design Goals

• CockroachDB Releases

CockroachDB in Action

• CockroachDB at DevSisters

• CockroachDB at DoorDash

• CockroachDB at Bose

Summary

The CockroachDB Cluster Architecture

• Ranges and Replicas

The CockroachDB Software Stack

The CockroachDB SQL Layer

From SQL to Key-Values

• Tables as Represented in the KV Store

• Column Families

• Indexes in the KV Store

• Inverted Indexes

• The STORING Clause

• Table Definitions and Schema Changes

The CockroachDB Transaction Layer

• MVCC Principles

• Transaction Workflow

• Write Intents

• Parallel Commits

• Transaction Cleanup

• Overview of Transaction Flow

• Read/Write Conflicts

• Clock Synchronization and Clock Skew

The CockroachDB Distribution Layer

• Meta Ranges

• Gossip

• Leaseholders

• Range Splits

• Multi Region Distribution

The CockroachDB Replication Layer

• Raft

• Raft and Leaseholders

• Closed Timestamps and Follower Reads

The CockroachDB Storage Layer

• Log-Structured Merge Trees

• SSTables and Bloom Filters

• Deletes and Updates

• MultiVersion Concurrency Control

• The Block Cache

Summary