The number of billed read I/O operations from a cluster volume, reported at 5-minute
intervals. Billed read operations are calculated at the cluster volume level, aggregated from
all instances in the Aurora DB cluster, and then reported at 5-minute intervals. The value is
calculated by taking the value of the Read operations metric over a 5-minute period. You can
determine the amount of billed read operations per second by taking the value of the Billed
read operations metric and dividing by 300 seconds. For example, if the Billed read
operations returns 13,686, then the billed read operations per second is 45 (13,686 / 300 =
45.62). You accrue billed read operations for queries that request database pages that aren't
in the buffer cache and therefore must be loaded from storage. You might see spikes in billed
read operations as query results are read from storage and then loaded into the buffer cache.
The number of billed read I/O operations from a cluster volume, reported at 5-minute intervals. Billed read operations are calculated at the cluster volume level, aggregated from all instances in the Aurora DB cluster, and then reported at 5-minute intervals. The value is calculated by taking the value of the Read operations metric over a 5-minute period. You can determine the amount of billed read operations per second by taking the value of the Billed read operations metric and dividing by 300 seconds. For example, if the Billed read operations returns 13,686, then the billed read operations per second is 45 (13,686 / 300 = 45.62). You accrue billed read operations for queries that request database pages that aren't in the buffer cache and therefore must be loaded from storage. You might see spikes in billed read operations as query results are read from storage and then loaded into the buffer cache.
Applies to: Aurora MySQL and Aurora PostgreSQL