Enable logdedup in OpenTelemetry Collector without hiding incidents

Reduce repetitive logs with a canary that protects audit trails, unique errors, exporter queues, and alerts.

A practical guide to using the OpenTelemetry Collector logdedup processor without turning volume reduction into lost incident evidence.

Created: July 26, 2026

Published: July 26, 2026

Estimated time35 min

LevelAdvanced

Before you startOpenTelemetry Collector Contrib in a test or canary environment.

PlatformsLinux / Docker

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Linux

Local canary with Collector Contrib, telemetrygen, and Prometheus metrics from the Collector itself.

otelcol-contribtelemetrygencurljq

Start Collector with internal metrics

otelcol-contrib --config ./collector-logdedup-canary.yaml

Generate repetitive synthetic logs

telemetrygen logs --otlp-insecure --logs 6000 --rate 100 --severity-text ERROR --severity-number 17 --body "connection refused" --telemetry-attributes 'log.type="connection"' --telemetry-attributes 'service.name="checkout-api"'

Check Collector queues and drops

curl -s localhost:8888/metrics | grep -E "otelcol_(exporter_queue|processor_dropped|receiver_accepted|exporter_send_failed)_log_records|otelcol_exporter_queue_size"

Also available inActivar logdedup en OpenTelemetry Collector sin ocultar incidentes

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