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docs: clarify the behavior of prepending hostname to metrics (#17521) 

* docs: clarify the behavior of prepending hostname to metrics

* Update website/content/docs/agent/config/config-files.mdx

Co-authored-by: trujillo-adam <47586768+trujillo-adam@users.noreply.github.com>

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Co-authored-by: trujillo-adam <47586768+trujillo-adam@users.noreply.github.com>
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website/content/docs/agent/config/config-files.mdx
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@ -1818,8 +1818,7 @@ subsystem that provides Consul's service mesh capabilities.
geo location or datacenter, dc:sfo). By default, this is left blank and not used.
- `disable_hostname` ((#telemetry-disable_hostname))
This controls whether or not to prepend runtime telemetry with the machine's
hostname, defaults to false.
Set to `true` to stop prepending the machine's hostname to gauge-type metrics. Default is `false`.
- `dogstatsd_addr` ((#telemetry-dogstatsd_addr)) This provides the address
of a DogStatsD instance in the format `host:port`. DogStatsD is a protocol-compatible

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website/content/docs/agent/telemetry.mdx
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@ -27,6 +27,10 @@ This telemetry information can be used for debugging or otherwise
getting a better view of what Consul is doing. Review the [Monitoring and
Metrics tutorial](/consul/tutorials/day-2-operations/monitor-datacenter-health?utm_source=docs) to learn how collect and interpret Consul data.
By default, all metric names of gauge type are prefixed with the hostname of the consul agent, e.g.,
`consul.hostname.server.isLeader`. To disable prefixing the hostname, set
`telemetry.disable_hostname=true` in the [agent configuration](/consul/docs/agent/config/config-files#telemetry).
Additionally, if the [`telemetry` configuration options](/consul/docs/agent/config/config-files#telemetry)
are provided, the telemetry information will be streamed to a
[statsite](http://github.com/armon/statsite) or [statsd](http://github.com/etsy/statsd) server where