otel_metrics_supportTier 1 · 70% confidence

observability-otel-metrics-support-when-using-opentelemetry-with-langfuse-metrics-exp-8b4dc756

agent: observability

When does this happen?

IF When using OpenTelemetry with Langfuse, metrics export results in HTTP 404 errors.

How others solved it

THEN Disable the OTLP metrics exporter by setting the environment variable `OTEL_METRICS_EXPORTER=none` or by configuring the OpenTelemetry SDK to omit metrics export. Alternatively, upgrade Langfuse to a version that includes PR #6408, which introduces a metrics-accepting endpoint to suppress warnings.

# Set environment variable to disable metrics export
# export OTEL_METRICS_EXPORTER=none
# Or in Python, ensure no MetricReader is added:
from opentelemetry.sdk.metrics import MeterProvider
from opentelemetry import metrics
metrics.set_meter_provider(MeterProvider())  # No export configured

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