Principles Of The CAP Theorem And Distributed Data

Recorded November 10, 2021

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The CAP Theorem states that it is impossible for a distributed database to simultaneously guarantee two of the following: Consistency, Availability or Partition Tolerance. The widely accepted theorem is often used to analyze and position new databases.

In this session, we will explore the three guarantees, delivering a definition for each, and outlining how each might affect your distributed system. This is a rather academic talk and hopefully, we will help you understand the history and how to use this important concept.  

We will cover:

• What are the challenges to ensuring consistent distributed data.
• What are the availability challenges for a distributed database.
• What are the challenges to dealing with network failures and dropped messages.
• RAFT, MVCC and other algorithms
• We will talk through CP and CA databases and how they are used.
• How CockroachDB delivers on these key traits.