Monitoring

Prometheus Metrics

The Base Reth Node exports Prometheus-compatible metrics. The base-cli-utils crate sets up a metrics HTTP listener using metrics-exporter-prometheus.

Key metric categories:

• Process metrics — CPU, memory, file descriptors (via metrics-process)
• RPC metrics — Request counts, latencies, error rates
• Transaction pool — Pool size, pending/queued counts
• Sync progress — Block height, peer count
• Flashblocks — Flashblock production rate, latency

Devnet Monitoring

The devnet includes built-in monitoring commands:

# Check block numbers and sync status across all nodes
just devnet-status

# View funded test accounts with balances and nonces
just devnet-accounts

# Run smoke tests (send test transactions to L1 and L2)
just devnet-smoke

# Full check suite
just devnet-checks

Log Streaming

Stream logs from devnet containers:

# All containers
just devnet-logs

# Specific containers
just devnet-logs l2-node builder

Profiling

For performance profiling, build with the profiling profile:

just devnet-profiling

This starts the devnet with Pyroscope integration and optimized builds that retain frame pointers for accurate profiling.

The profiling profile settings:

• Inherits from release
• LTO disabled for faster builds
• Debug info: line tables only
• Frame pointers forced on
• Symbols not stripped