Reading Questions. Lecture 16 (02/23). Federated Systems. Fault-Tolerance.

 

As you read the paper, consider the following questions:

 

Question 1: Why is it challenging to mask failures from users in multitier Internet applications?

 

Question 2: What is the key idea behind using interaction contracts to provide fault-tolerance?

Question 3: What are the different types of contracts? Why are different types of contracts necessary and what guarantees does each type of contract provide?