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cf-avg

Input Stack:
aggr: AggregationFunction
 ⇨ Output Stack:
AggregationFunction

Force the consolidation function to be average when aggregating data points within time intervals. This operator overrides the default consolidation behavior to ensure that when multiple data points fall within a single time step, the average value is used rather than other methods like summing or taking the maximum.

Warning

Performance Impact: This operator can make queries significantly more expensive by preventing consolidation pushdown and is rarely needed or desirable.

Parameters

  • aggr: The aggregation function to apply average consolidation to

How Consolidation Works

When the step size for a graph is larger than the reporting interval of the data, multiple data points may fall within a single graph interval. The consolidation function determines how these points are combined:

  • Default behavior: Most aggregation functions use their natural consolidation (e.g., :sum uses avg consolidation)
  • Override behavior: :cf-avg forces average consolidation regardless of the aggregation function

Examples

Force average consolidation for a sum aggregation:

name,requests,:eq,:max,:cf-avg

This ensures that when multiple sum values exist within a time interval, the average of those sums is displayed rather than summing them up.

  • :cf-min - Force minimum consolidation
  • :cf-max - Force maximum consolidation
  • :cf-sum - Force sum consolidation

See Also