Correct answer - "The partition key that you have selected isn't distributed enough" : As the
partition key is not distributed enough, all the data is getting skewed at few specific shards
and not leveraging the entire cluster of shards.
"Metrics are slow to update" - Metrics are a concept in CloudWatch that you can leverage
"You have too many shards" - Too many shards is not the issue, if it was you would see a
LimitExceededException
"The data retention period is too long" - Your streaming data is retained for up to 7 days. Too
long of a period is not an issue causing this error