Introduction to Saga Pattern

How does a business transaction stay correct when it spans several microservices? This chapter answers that question. It covers the Saga Pattern, which is how distributed systems manage a transaction that spans several services.

First, why should we care about transactions in distributed systems? Careful transaction management is what keeps data consistent and operations correct. This gets much harder when we move from a single system to a distributed one. The Saga Pattern is the answer to that problem.

Transactions in Distributed Systems

First, let's define a couple of key terms