50 lines
1.6 KiB
Markdown
50 lines
1.6 KiB
Markdown
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# Carbon2
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The `carbon2` serializer translates the Telegraf metric format to the [Carbon2 format](http://metrics20.org/implementations/).
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### Configuration
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```toml
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[[outputs.file]]
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## Files to write to, "stdout" is a specially handled file.
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files = ["stdout", "/tmp/metrics.out"]
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## Data format to output.
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## Each data format has its own unique set of configuration options, read
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## more about them here:
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## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
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data_format = "carbon2"
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```
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Standard form:
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```
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metric=name field=field_1 host=foo 30 1234567890
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metric=name field=field_2 host=foo 4 1234567890
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metric=name field=field_N host=foo 59 1234567890
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```
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### Metrics
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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.
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### Example
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If we take the following InfluxDB Line Protocol:
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```
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weather,location=us-midwest,season=summer temperature=82,wind=100 1234567890
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```
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after serializing in Carbon2, the result would be:
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```
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metric=weather field=temperature location=us-midwest season=summer 82 1234567890
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metric=weather field=wind location=us-midwest season=summer 100 1234567890
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```
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### Fields and Tags with spaces
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When a field key or tag key/value have spaces, spaces will be replaced with `_`.
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### Tags with empty values
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When a tag's value is empty, it will be replaced with `null`
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