Prometheus metrics endpoint causes overhead when using OpenTelemetry exclusively

info

performanceUpdated Feb 12, 2026(via Exa)

Sources

Proxy Metrics | Envoy Gatewaygateway.envoyproxy.io

Technologies:

Envoysubject

How to detect:

When using only the OpenTelemetry sink for metrics, the Prometheus metrics endpoint remains enabled by default, creating unnecessary overhead from dual metrics collection and export.

Recommended action:

Set telemetry.metrics.prometheus.disable to true in the EnvoyProxy CRD to disable the Prometheus endpoint. Apply the EnvoyProxy resource with the prometheus.disable configuration and reference it from the Gateway infrastructure.parametersRef.