Can metrics be remapped to send multiple metrics?

[alex-rowe]

In the remap transform there is the option to split the log and send multiple by overriding the top level . to send an array instead of an object, does this also exist for metrics?

/transforms/remap/#emitting-multiple-log-events

For example:

[sources.internal_metrics]
type = "internal_metrics"

[transforms.filter_metrics]
type = "remap"
inputs = ["internal_metrics"]
source = '''
  # code removed to filter on just the metrics we want
  metric_one = .
  metric_two = .
  metric_one.tags.first_tag = "string"
  metric_two.tags.second_tag = "string"
  . = [metric_one, metric_two]

The use case for this would be for sending metrics with two different single dimensions, rather than multiple dimensions.

An option may be two create three transforms, so filter_metrics to just remove metrics we don't want, then use it as the input for two other transforms where they set their tag. Those two transforms are then inputs to the sink.

[jszwedko]

Hi @alex-rowe !

I don't think remap can natively do that at the moment. Your work-around of using multiple transforms seems like it would work.

[alex-rowe]

Thanks, I tested the multiple transforms and that works well, one for a filter condition, then two for remapping to different value pairs.