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Split Processor Plugin

This plugin splits a metric up into one or more metrics based on a template the user provides. The timestamp of the new metric is based on the source metric. Templates can overlap, where a field or tag, is used across templates and as a result end up in multiple metrics.

NOTE: If drop original is changed to true, then the plugin can result in dropping all metrics when no match is found! Please ensure to test templates before putting into production and use metric filtering to avoid data loss.

Some outputs are sensitive to the number of metric series that are produced. Multiple metrics of the same series (i.e. identical name, tag key-values and field name) with the same timestamp might result in squashing those points to the latest metric produced.

Global configuration options

In addition to the plugin-specific configuration settings, plugins support additional global and plugin configuration settings. These settings are used to modify metrics, tags, and field or create aliases and configure ordering, etc. See the CONFIGURATION.md for more details.

Configuration

# Split a metric into one or more metrics with the specified field(s)/tag(s)
[[processors.split]]
  ## Keeps the original metric by default
  # drop_original = false

  ## Template for an output metric
  ## Users can define multiple templates to split the original metric into
  ## multiple, potentially overlapping, metrics.
  [[processors.split.template]]
    ## New metric name
    name = ""

    ## List of tag keys for this metric template, accepts globs, e.g. "*"
    tags = []

    ## List of field keys for this metric template, accepts globs, e.g. "*"
    fields = []

Example

The following takes a single metric with data from two sensors and splits out each sensor into its own metric. It also copies all tags from the original metric to the new metric.

[[processors.split]]
  drop_original = true
  [[processors.split.template]]
    name = "sensor1"
    tags = [ "*" ]
    fields = [ "sensor1*" ]
  [[processors.split.template]]
    name = "sensor2"
    tags = [ "*" ]
    fields = [ "sensor2*" ]
-metric,status=active sensor1_channel1=4i,sensor1_channel2=2i,sensor2_channel1=1i,sensor2_channel2=2i 1684784689000000000
+sensor1,status=active sensor1_channel1=4i,sensor1_channel2=2i 1684784689000000000
+sensor2,status=active sensor2_channel1=1i,sensor2_channel2=2i 1684784689000000000