Deploying AWS Lambda to multiple regions?

Question

Quick one.

What does it look like when you’ve got one lambda deployed in multiple regions? Is it just 2 separate copies of the same code with a different name, different ARN etc?

does AWS view them as unrelated lambdas?

Or does it know they’re the same thing deployed in different regions?

Answer 1

Two lambda will be treated as separate entities. Sample ARN of lambda

arn:aws:lambda:region:account-id:function:function-name

Answer 2

AWS does condsider them separate, though the code might be the same. (Imagine college grads testing hello world with same code) You can still have them as an active-active setup or for fail-over. Refer this for more details.