Calculates the sum for a field over a set of events. Result is returned in a field named _sum
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
| field | string | Yes | field to extract a number from and sum over” | |
| as | string | No | _sum | name of output field |
field is the unnamed parameter.
How many bytes did our webserver send per minute
bucket(function=sum(bytes_sent))