The parse operator parses the specified field to create new fields to use in the metrics query.
If you are querying Graphite metrics, and do not specify the field to be parsed, then the metric name will be parsed.
Each wildcard in the pattern corresponds to a specified field. The parse operator supports both lazy (shortest match) and greedy (longest match wildcard matches. Use '*' for a lazy match, or '**' for a greedy match.
parse [field=FIELD] PATTERN as PARSED_FIELD [, PARSED_FIELD, ...]
FIELDis the metric field you want to parse,
PATTERNis an expression in which wildcards indicate how to parse
PARSED_FIELDis a field that results from the parsing process
parse three fields from a metric field
In this query, we parse the
LoadBalancer field. The format of the field is
type/name/id, for example:
This query creates a field for each of the forward-slash-separated segments:
AvailabilityZone=us-west-1a metric=HTTPCode_Target_2XX_Count | parse field=LoadBalancer */*/* as type, name, id
parse operator creates fields named
id that have the values from the slash-separated segments of the
Use a parsed field in a query
You can use the field(s) you’ve parsed within the same query, after the
parse operator. for example, this query parses the
name field out of the
LoadBalancer field, returns the average value of the
HTTPCode_Target_2XX_Count metric by the
AvailabilityZone=us-west-1a metric=HTTPCode_Target_2XX_Count | parse field=LoadBalancer */*/* as type, name, id | avg by name