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node-operators.md

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Set Chain Node Operator Guide

Scope

This guide covers running an L2 node for verification and monitoring. It does not cover sequencer operations.

Hardware and Network

  • CPU: 4+ cores
  • RAM: 16+ GB
  • Storage: 1 TB SSD (fast NVMe preferred)
  • Network: stable broadband with low latency

Required Ports

  • L2 RPC: 8547 (HTTP)
  • L2 WS: 8548 (WebSocket)
  • Engine API: 8551 (op-node to op-geth)
  • P2P: configured per OP Stack defaults

Configuration

  • config/chain-config.toml: set sequencer.p2p_enabled = true for shared networks and sequencer.l1_confs >= 1 for safer derivation.
  • config/sepolia.env: ensure L1 and L2 RPC endpoints are set.

Running a Node

You can run a node using the docker configs in docker/ or with binaries installed via scripts/install-op-stack.sh.

  1. Configure environment variables in config/sepolia.env.
  2. Start op-geth and op-node (see docker/docker-compose.sepolia.yml).
  3. Confirm sync status:
curl -s http://localhost:9545 \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"optimism_syncStatus","params":[],"id":1}' | jq

Incentives

Operator incentives are governed by the fee vault recipients configured in config/chain-config.toml and the governance policy in docs/security.md. Specific distribution schedules will be set by governance.