otlp_metrics_supportTier 1 · 70% confidence

observability-otlp-metrics-support-post-to-api-public-otel-v1-metrics-returns-http-40-adb01c34

agent: observability

When does this happen?

IF POST to /api/public/otel/v1/metrics returns HTTP 404 with error logs from opentelemetry metric exporter

How others solved it

THEN This 404 error is expected because Langfuse does not support OTLP metrics export. To suppress the error, disable metrics exporting in your OpenTelemetry SDK by setting the environment variable OTEL_METRICS_EXPORTER=none or by configuring the SDK to not initialize a metric exporter. A server-side fix (PR #6408) is being implemented to silently accept metrics and reduce warnings.

import os
os.environ['OTEL_METRICS_EXPORTER'] = 'none'

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