Saga Architecture Pattern

Instead of asking all the participants to commit and then rollback like Two Phase Commit, we follow a sequence flows. So we commit one by one and only rollback if one fails.

Similar to TCC - Try Confirm Cancel but however provide a way to rollback at each step

How it works

We can make a Service Wrapper for example and call rollback() function in relevant service if one fails

Pros and cons

Pros

• Easy to implement
• Minimum locking
• Retry mechanism

Cons

• As our service grows, the wrapper can become complex