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Aug 31, 2025
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docs: update otlp for delta temporality and metadata labels #6983

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docs: update otlp for delta temporality and metadata labels
SungJin1212 Aug 24, 2025
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change titles and some typos
SungJin1212 Aug 25, 2025
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24 changes: 24 additions & 0 deletions docs/guides/open-telemetry-collector.md
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Expand Up @@ -65,6 +65,19 @@ service:
```

## Configure OTLP
You can configure OTLP-related flags in a yaml file.

```
limits:
promote_resource_attributes: <list of string>
...
distributor:
otlp:
convert_all_attributes: <boolean>
disable_target_info: <boolean>
allow_delta_temporality: <boolean>
enable_type_and_unit_labels: <boolean>
```

### target_info metric

Expand Down Expand Up @@ -117,6 +130,17 @@ distributor:
disable_target_info: false
```

### Delta temporality

The OpenTelemetry supports two temporalities, [Delta and Cumulative](https://opentelemetry.io/docs/specs/otel/metrics/data-model/#temporality).
By default, only the cumulative metrics can be ingested.
To enable the ingestion of OTLP metrics with delta temporality, set the `distributor.otlp.allow-delta-temporality` flag to `true`.

### Enable `__type__` and `__unit__` label

The `__type__` and `__unit__` labels are added to OTLP metrics if `distributor.otlp.enable-type-and-unit-labels` is set to `true`.
This flag is disabled by default.

### Configure promote resource attributes per tenants

The `promote_resource_attributes` is a [runtime config](./overrides-exporter.md) so you can configure it per tenant.
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