Merge Aggregator Plugin

This plugin merges metrics of the same series and timestamp into new metrics with the super-set of fields. A series here is defined by the metric name and the tag key-value set.

Use this plugin when fields are split over multiple metrics, with the same measurement, tag set and timestamp.

⭐ Telegraf v1.13.0 🏷️ transformation 💻 all

Global configuration options

Plugins support additional global and plugin configuration settings for tasks such as modifying metrics, tags, and fields, creating aliases, and configuring plugin ordering. See CONFIGURATION.md for more details.

Configuration

toml

# Merge metrics into multifield metrics by series key
[[aggregators.merge]]
  ## General Aggregator Arguments:
  ## The period on which to flush & clear the aggregator.
  # period = "30s"

  ## Precision to round the metric timestamp to
  ## This is useful for cases where metrics to merge arrive within a small
  ## interval and thus vary in timestamp. The timestamp of the resulting metric
  ## is also rounded.
  # round_timestamp_to = "1ns"

  ## If true, the original metric will be dropped by the
  ## aggregator and will not get sent to the output plugins.
  drop_original = true

Example

diff

- cpu,host=localhost usage_time=42 1567562620000000000
- cpu,host=localhost idle_time=42 1567562620000000000
+ cpu,host=localhost idle_time=42,usage_time=42 1567562620000000000