otelcol.exporter.logging.md

---

title: otelcol.exporter.logging

---

otelcol.exporter.logging

otelcol.exporter.logging accepts telemetry data from other otelcol components and writes them to the console.

This component writes logs at the info level. The [logging config block][] must be configured to write logs at the info level.

NOTE: otelcol.exporter.logging is a wrapper over the upstream OpenTelemetry Collector logging exporter. Bug reports or feature requests will be redirected to the upstream repository, if necessary.

Multiple otelcol.exporter.logging components can be specified by giving them different labels.

[logging config block]: {{< relref "../config-blocks/logging.md" >}}

Usage

otelcol.exporter.logging "LABEL" { }

Arguments

otelcol.exporter.logging supports the following arguments:

Name	Type	Description	Default	Required
verbosity	string	Verbosity of the generated logs.	"normal"	no
sampling_initial	int	Number of messages initially logged each second.	2	no
sampling_thereafter	int	Sampling rate after the initial messages are logged.	500	no

The verbosity argument must be one of "basic", "normal", or "detailed".

Exported fields

The following fields are exported and can be referenced by other components:

Name	Type	Description
input	otelcol.Consumer	A value that other components can use to send telemetry data to.

input accepts otelcol.Consumer data for any telemetry signal (metrics, logs, or traces).

Component health

otelcol.exporter.logging is only reported as unhealthy if given an invalid configuration.

Debug information

otelcol.exporter.logging does not expose any component-specific debug information.

Example

This example scrapes prometheus unix metrics and writes them to the console:

prometheus.exporter.unix { }

prometheus.scrape "default" {
	targets    = prometheus.exporter.unix.targets
	forward_to = [otelcol.receiver.prometheus.default.receiver]
}

otelcol.receiver.prometheus "default" {
	output {
		metrics = [otelcol.exporter.logging.default.input]
	}
}

otelcol.exporter.logging "default" {
	verbosity           = "detailed"
	sampling_initial    = 1
	sampling_thereafter = 1
}