37. Monitoring & Alerting

37.1 Prometheus Metrics

Expose port 9090 internally to your Prometheus scraper. Track key metrics:

• kortana_p2p_peers_connected
• kortana_chain_head_height
• kortana_db_compaction_pending_bytes

37.2 Alert Rules

Set up PagerDuty / Slack alerts for:

• Peer Count Drop: Alert if peers < 5 for 5 minutes.
• Chain Stall: Alert if kortana_chain_head_height does not increase for 10 seconds.

37.3 Health Checks

Use the included ops/healthcheck.sh script to ping the /health endpoint. If the script fails 3 times consecutively, rotate the node out of the load balancer pool.

Part IX — CLI Reference

The Kortana ecosystem provides powerful command-line interfaces for interacting with the node, managing cryptographic keys, and compiling smart contracts.

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