Jheison Rodriguez
Your DynamoDB table has approximately 25GB of data and 1000 RCUs. How many partitions can we expect for this table?
The answer is 3 but it marks as correct the "unable to determine with the given information"
1 Answers
Sam T
The formula for number of partitions is ( readCapacityUnits / 3,000 ) + ( writeCapacityUnits / 1,000 ) = initialPartitions (rounded up)
Also the max size of partition is 10 GB. So for 25 GB it would at least be 3 partitions.
We know RCU but not WCU – so in theory we can say – not enough information to determine.
In the video DynamoDB at Scale min 1:32, Scott explains the total partitions are going to be decided by the maximum of either Capacity calculation or Size calculation
Capacity calculation = ( readCapacityUnits / 3,000 ) + ( writeCapacityUnits / 1,000 )
Size calculation = total size /10GB