Which option should the developer use for a partition key to meet these requirements?
A randomly generated universally unique identifier (UUID)
The customer’s full name
The date when the customer signed up for the rewards program
The name of the customer’s pet
Explanations:
A randomly generated UUID will distribute the data evenly across partitions, avoiding partition hotspots and improving query performance. It ensures that data is distributed uniformly, reducing the risk of overload.
Using the customer’s full name as a partition key may lead to poor data distribution, especially if many customers share similar names, resulting in partition hotspots and performance degradation.
The date when the customer signed up may lead to hot partitions, especially if many customers sign up on the same date, resulting in uneven data distribution and potential overload.
The name of the customer’s pet is unlikely to provide a good partition key, as pets’ names are not guaranteed to be uniformly distributed, leading to skewed data and partition overload.
I surmise that the answer is:
A randomly generated universally unique identifier (UUID)