- Why:
- dashboard showed offset as throughput and produced misleading values
- kafka-exporter metric/label naming was inconsistent across alerts/docs
- consumer-group-missing alert was noisy for demo runs
- What:
- switch throughput panel to rate(kafka_topic_partition_current_offset[5m]) aggregated by topic and exclude __* topics
- align lag metric/labels to kafka_consumergroup_lag + consumergroup
- remove Kafka Consumer Group Missing alert from provisioning
- pin kafka-exporter image to v1.9.0 and update OPERATIONS.md checks
- Check:
- airflow dags list-import-errors -> No data found
- Prometheus targets: clickhouse up, kafka up
- PromQL kafka_consumergroup_lag returns series
- Grafana dashboards provisioning reload returns success
- Add kafka-exporter service to docker-compose.yml
- Add kafka job to prometheus.yml scrape configs
- Add Kafka Overview dashboard (Grafana provisioning)
- Add Kafka alert rules (broker down, consumer lag, etc.)
- Add make reload-monitoring command for easy updates
- Update OPERATIONS.md with TL;DR and troubleshooting
API verified via Context7:
- /danielqsj/kafka_exporter for exporter config
- /prometheus/docs for scrape_configs format
ddadmin