The carbon2 serializer translates the Telegraf metric format to the Carbon2 format.
[[outputs.file]]
## Files to write to, "stdout" is a specially handled file.
files = ["stdout", "/tmp/metrics.out"]
## Data format to output.
## Each data format has its own unique set of configuration options, read
## more about them here:
## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
data_format = "carbon2"Standard form:
metric=name field=field_1 host=foo 30 1234567890
metric=name field=field_2 host=foo 4 1234567890
metric=name field=field_N host=foo 59 1234567890
The serializer converts the metrics by creating intrinsic_tags using the combination of metric name and fields. So, if one Telegraf metric has 4 fields, the carbon2 output will be 4 separate metrics. There will be a metric tag that represents the name of the metric and a field tag to represent the field.
If we take the following InfluxDB Line Protocol:
weather,location=us-midwest,season=summer temperature=82,wind=100 1234567890
after serializing in Carbon2, the result would be:
metric=weather field=temperature location=us-midwest season=summer 82 1234567890
metric=weather field=wind location=us-midwest season=summer 100 1234567890
When a field key or tag key/value have spaces, spaces will be replaced with _.
When a tag's value is empty, it will be replaced with null