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Update README

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Signed-off-by: Tony Wooster <twooster@gmail.com>
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Tony Wooster 2019-09-17 16:59:08 +02:00
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README.md
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@ -31,10 +31,11 @@ in the long term.
### Tagging Extensions
The exporter supports both Librato-style tags and DogStatsD-style tags,
The exporter supports Librato, InfluxDB, and DogStatsD-style tags,
which will be converted into Prometheus labels.
For Librato-style tags, they must be appended to the metric name, as so:
For Librato-style tags, they must be appended to the metric name with a
delimiting `#`, as so:
```
metric.name#tagName=val,tag2Name=val2:0|c
@ -43,8 +44,19 @@ metric.name#tagName=val,tag2Name=val2:0|c
See the [statsd-librato-backend README](https://github.com/librato/statsd-librato-backend#tags)
for a more complete description.
For DogStatsD-style tags, they're appended as another section at the end of the
metric, as so:
For InfluxDB-style tags, they must be appended to the metric name with a
delimiting comma, as so:
```
metric.name,tagName=val,tag2Name=val2:0|c
```
See [this InfluxDB blog post](https://www.influxdata.com/blog/getting-started-with-sending-statsd-metrics-to-telegraf-influxdb/#introducing-influx-statsd)
for a larger overview.
For DogStatsD-style tags, they're appended as a `|#` delimited section at the
end of the metric, as so:
```
metric.name:0|c|#tagName=val,tag2Name=val2
@ -53,13 +65,16 @@ metric.name:0|c|#tagName=val,tag2Name=val2
See [Tags](https://docs.datadoghq.com/developers/dogstatsd/data_types/#tagging)
in the DogStatsD documentation for the concept description and
[Datagram Format](https://docs.datadoghq.com/developers/dogstatsd/datagram_shell/).
Note that this tagging style is incompatible with the original `statsd`
implementation, you will be unable to use it as a repeater in front of the
statsd-to-prometheus exporter.
Although you can use both tag types simultaneously, this is not recommended.
DogStatsD `name=value` pairs will take priority over Librato tags with the same
name.
Although you can use both name-appended tags (Librato or InfluxDB) and
metric-appended tags simultaneously, this is not recommended. If you do, be
aware that DogStatsD `name=value` pairs will take priority over Librato tags
with the same name.
For both Librato and DogStatsD tags, tags without values (`#some_tag`) are not
supported.
Tags without values (`#some_tag`) are not supported and will be dropped.
## Building and Running