Lesser Known AWS Features — Day 17: AWS Fault Injection Service (FIS)
Day 17 of my AWS learning journey: Today I explored AWS Fault Injection Service (FIS), and this was a completely new concept for me.
Day 17 of my AWS learning journey: Today I explored AWS Fault Injection Service (FIS), and this was a completely new concept for me.
Usually, when we build an application, we test whether everything works correctly. But what happens when something suddenly goes wrong?
AWS FIS allows us to intentionally introduce controlled failures into our AWS environment so we can see how our applications respond.
For example, we can simulate certain infrastructure failures and observe whether our application can recover as expected.
What I found interesting is that instead of waiting for a real failure to happen, we can test our system's resilience before an actual incident occurs.
This can be useful for testing reliability, resilience, monitoring, and recovery mechanisms.
My biggest takeaway today was simple: a system isn't truly reliable just because it works—it should also be able to handle failure.
Have you ever tested how your application behaves when a cloud resource suddenly fails?
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