Class: Aws::RDS::Types::PerformanceInsightsMetricQuery

Inherits:

Struct

Object
Struct
Aws::RDS::Types::PerformanceInsightsMetricQuery

show all

Includes:: Structure

Defined in:: lib/aws-sdk-rds/types.rb

Overview

A single Performance Insights metric query to process. You must provide the metric to the query. If other parameters aren’t specified, Performance Insights returns all data points for the specified metric. Optionally, you can request the data points to be aggregated by dimension group (‘GroupBy`) and return only those data points that match your criteria (`Filter`).

Constraints:

Must be a valid Performance Insights query.

Constant Summary collapse

SENSITIVE =

[]

Instance Attribute Summary collapse

#group_by ⇒ Types::PerformanceInsightsMetricDimensionGroup

A specification for how to aggregate the data points from a query result.
#metric ⇒ String

The name of a Performance Insights metric to be measured.

Instance Attribute Details

#group_by ⇒ `Types::PerformanceInsightsMetricDimensionGroup`

A specification for how to aggregate the data points from a query result. You must specify a valid dimension group. Performance Insights will return all of the dimensions within that group, unless you provide the names of specific dimensions within that group. You can also request that Performance Insights return a limited number of values for a dimension.

Returns:

(Types::PerformanceInsightsMetricDimensionGroup)

# File 'lib/aws-sdk-rds/types.rb', line 21432

class PerformanceInsightsMetricQuery < Struct.new(
  :group_by,
  :metric)
  SENSITIVE = []
  include Aws::Structure
end

#metric ⇒ `String`

The name of a Performance Insights metric to be measured.

Valid Values:

‘db.load.avg` - A scaled representation of the number of active sessions for the database engine.
‘db.sampledload.avg` - The raw number of active sessions for the database engine.
The counter metrics listed in [Performance Insights operating system counters] in the *Amazon Aurora User Guide*.

If the number of active sessions is less than an internal Performance Insights threshold, ‘db.load.avg` and `db.sampledload.avg` are the same value. If the number of active sessions is greater than the internal threshold, Performance Insights samples the active sessions, with `db.load.avg` showing the scaled values, `db.sampledload.avg` showing the raw values, and `db.sampledload.avg` less than `db.load.avg`. For most use cases, you can query `db.load.avg` only.

[1]: docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/USER_PerfInsights_Counters.html#USER_PerfInsights_Counters.OS