Deduplicate OpenTelemetry logs before Loki limits hide incident evidence

A practical workflow for reducing repeated noise without deleting errors, timeouts, or critical incident signals.

Learn how to detect duplicates, apply a safe OpenTelemetry Collector deduplication policy, and prove Loki stops discarding samples without losing incident evidence.

Created: June 30, 2026

Published: June 30, 2026

Estimated time45 min

LevelAdvanced

Before you startAn OpenTelemetry Collector handling at least one log pipeline.

PlatformsLinux

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Linux

Local Collector configuration validation, queue/exporter metrics, and logcli queries against Loki.

otelcolcurllogclioptional promtool

Validate configuration

otelcol --config collector.yaml --dry-run

Inspect Collector metrics

curl -s localhost:8888/metrics | grep -E 'dropped_log_records|exporter_queue|send_failed'

Check preserved errors in Loki

logcli query '{namespace="checkout"} |~ "ERROR|timeout|failed"' --since=30m

Also available inDeduplicar logs con OpenTelemetry antes de que los límites de Loki oculten evidencias

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