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update README for tcp listener, fix #75

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jwfang 2017-08-02 13:15:53 +08:00
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README.md
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@ -11,17 +11,17 @@
### With StatsD
To pipe metrics from an existing StatsD environment into Prometheus, configure
StatsD's repeater backend to repeat all received packets to a `statsd_exporter`
StatsD's repeater backend to repeat all received metrics to a `statsd_exporter`
process. This exporter translates StatsD metrics to Prometheus metrics via
configured mapping rules.
+----------+ +-------------------+ +--------------+
| StatsD |---(UDP repeater)--->| statsd_exporter |<---(scrape /metrics)---| Prometheus |
| StatsD |---(UDP/TCP repeater)--->| statsd_exporter |<---(scrape /metrics)---| Prometheus |
+----------+ +-------------------+ +--------------+
### Without StatsD
Since the StatsD exporter uses the same UDP protocol as StatsD itself, you can
Since the StatsD exporter uses the same line protocol as StatsD itself, you can
also configure your applications to send StatsD metrics directly to the exporter.
In that case, you don't need to run a StatsD server anymore.
@ -44,10 +44,28 @@ without values (`#some_tag`) are not supported.
$ go build
$ ./statsd_exporter --help
Usage of ./statsd_exporter:
-statsd.listen-address=":9125": The UDP address on which to receive statsd metric lines.
-statsd.mapping-config="": Metric mapping configuration file name.
-web.listen-address=":9102": The address on which to expose the web interface and generated Prometheus metrics.
-web.telemetry-path="/metrics": Path under which to expose metrics.
-log.format value
If set use a syslog logger or JSON logging. Example: logger:syslog?appname=bob&local=7 or logger:stdout?json=true. Defaults to stderr.
-log.level value
Only log messages with the given severity or above. Valid levels: [debug, info, warn, error, fatal].
-statsd.add-suffix
Add the metric type (counter/gauge/timer) as suffix to the generated Prometheus metric (NOT recommended, but set by default for backward compatibility). (default true)
-statsd.listen-address string
The UDP address on which to receive statsd metric lines. DEPRECATED, use statsd.listen-udp instead.
-statsd.listen-tcp string
The TCP address on which to receive statsd metric lines. "" disables it. (default ":9125")
-statsd.listen-udp string
The UDP address on which to receive statsd metric lines. "" disables it. (default ":9125")
-statsd.mapping-config string
Metric mapping configuration file name.
-statsd.read-buffer int
Size (in bytes) of the operating system's transmit read buffer associated with the UDP connection. Please make sure the kernel parameters net.core.rmem_max is set to a value greater than the value specified.
-version
Print version information.
-web.listen-address string
The address on which to expose the web interface and generated Prometheus metrics. (default ":9102")
-web.telemetry-path string
Path under which to expose metrics. (default "/metrics")
## Tests
@ -123,7 +141,7 @@ For example:
```bash
docker pull prom/statsd-exporter
docker run -d -p 9102:9102 -p 9125:9125/udp \
docker run -d -p 9102:9102 -p 9125:9125 -p 9125:9125/udp \
-v $PWD/statsd_mapping.conf:/tmp/statsd_mapping.conf \
prom/statsd-exporter -statsd.mapping-config=/tmp/statsd_mapping.conf
```