As discussed in the last chapter, distributing data means at least one of two things: partitioning and replication. To start our journey through the patterns in this book, we’ll focus on replication first.
Imagine a very minimal data record that captures how many widgets we have in four locations (Figure 2.1).
Figure 2.1An example data record
We replicate it on three nodes: Jupiter, Saturn, and Neptune (Figure 2.2).
Figure 2.2Replicated data record
Keeping Data Resilient ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month, and much more.
