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Code Block
otel.metrics.exporter=prometheus
otel.exporter.prometheus.port=9464
otel.exporter.prometheus.host=0.0.0.0

Proposed Changes

OpenTelemetry module or OTEL Java Agent

We aim to leverage the Solr Open Telemetry module or the OTel Java agent with the introduction of SOLR-17432, which initializes the Open Telemetry SDK for traces, to also push OTel metrics via OTLP. Metrics is currently hard coded to be off in the OTel module and we will remove this for metrics. We will collect metrics with the Open Telemetry API and this transition will completely remove Dropwizard, enabling support for an attribute-based metric system.

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