feat(metrics): add Prometheus metrics support for beacon client - #6
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tosynthegeek wants to merge 5 commits into
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feat(metrics): add Prometheus metrics support for beacon client#6tosynthegeek wants to merge 5 commits into
tosynthegeek wants to merge 5 commits into
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* Implement core beacon metrics (head slot, epochs, active validators, reorgs, deposits) * Expose configurable metrics address and port in the beacon node CLI * Integrate with Grafana dashboard via `beaconMetrics.json` * Update ream_launcher.star + Kurtosis integration Closes ReamLabs#1526
* Implement core beacon metrics (head slot, epochs, active validators, reorgs, deposits) * Expose configurable metrics address and port in the beacon node CLI * Integrate with Grafana dashboard via beaconMetrics.json * Update ream_launcher.star + Kurtosis integration
perfogic
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Jul 25, 2026
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What was wrong?
The beacon node had no Prometheus metrics,
ream-metricswas wired into the lean client only,BeaconNodeConfighad no metrics flag, and there was no way to expose a /metrics endpoint. This blocked Kurtosis integration, since theethereum-packageconfig wires every CL participant's metrics port into a shared Prometheus/Grafana stack via Dora. See ReamLabs#1526.How was it fixed?
Added a Prometheus metrics HTTP endpoint to the beacon node, with configurable address/port exposed via CLI flags.
Added beacon metrics into the beacon node's fork choice, gossipsub validation, engine API, networking, and KZG/DAS paths, implementing the beacon-metrics interop spec plus the PeerDAS gossip-verification, KZG-batch, reconstruction, and Fulu
engine_getBlobsV2/V3metrics.Added
beaconMetrics.json, a Grafana dashboard covering all wired metrics.Some metrics have been added but not wired as there areno underlying implementation to hook into yet.
beacon_custody_groups_backfilled,beacon_partial_message_*,beacon_useful_full_columns_received_total,beacon_fast_confirmation_*To-Do