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[docs] Update Router telemetry docs #6252

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Nov 14, 2024
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[docs] Update Router telemetry docs #6252

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Update overview.mdx
smyrick Nov 11, 2024
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Update overview.mdx
smyrick Nov 12, 2024
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5 changes: 4 additions & 1 deletion docs/source/reference/router/telemetry/trace-exporters/overview.mdx
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Expand Up @@ -107,7 +107,10 @@ telemetry:
parent_based_sampler: true # (default) If an incoming span has OpenTelemetry headers then the request will always be sampled.
```

- `sampler` sets the sampling rate as a decimal percentage, `always_on`, or `always_off`. For example, setting `sampler: 0.1` samples 10% of your requests.
- `sampler` sets the sampling rate as a decimal percentage, `always_on`, or `always_off`.
- For example, setting `sampler: 0.1` samples 10% of your requests.
- `always_on` (the default) sends all spans to your APM.
- `always_off` turns off sampling. No spans reach your APM.

- `parent_based_sampler` enables clients to make the sampling decision. This guarantees that a trace that starts at a client will also have spans at the router. You may wish to disable it (setting `parent_based_sampler: false`) if your router is exposed directly to the internet.

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