DynamoDB Read Consistency problem

[msimperi]

The DynamoDB cache is great for many reasons, but there is small side-effect that might or might not be visible for the users. The DynamoDB default reading mode is "Eventually Consistent". DynamoDB can also be used in "Strongly Consistent" read mode, if you specify that when getting data.

E.g.

1. Write data to cache
2. Read data from cache

If 2nd step is not able to read always data from cache that 1st step wrote, it is usually a big problem e.g. with session. This consistent read might fail and if it fails, fall back to normal read is recommended.

https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/HowItWorks.ReadConsistency.html

What do you think? Is this something that could maybe be parametrised setting for the DynamoDB cache like TTL field?