Database
Amazon Keyspaces
- Timebilled
- Bytesbilled
- Callsbilled
In one line
Cassandra with DynamoDB's meters underneath: RRU/WRU on demand, hourly RCU/WCU when provisioned.
What gets missed
Consistency level moves the bill. One RRU covers a LOCAL_QUORUM read up to 4 KB, or two LOCAL_ONE reads. TTL deletes bill one unit per KB per row, and multi-Region writes bill WRUs in every Region.
Find it on your bill
Filter Cost Explorer or your Cost and Usage Report by these usage types. A usage type with no region prefix means us-east-1.
ReadRequestUnitsWriteRequestUnitsTimedStorage-ByteHrsTTLDeletes
Bills the same way
These services turn exactly the same meters, so what you learn here transfers.