How to Set Up Qdrant Monitoring

Get Prometheus scraping working first, then health probes, then alerting. Do not skip monitoring setup before going to production.

Prometheus Metrics

Use when: setting up metric collection for the first time or adding a new deployment.

• Node metrics at /metrics endpoint Monitoring docs
• Cluster metrics at /sys_metrics (Qdrant Cloud only)
• Prefix customization via service.metrics_prefix config or QDRANT__SERVICE__METRICS_PREFIX env var
• Example self-hosted setup with Prometheus + Grafana prometheus-monitoring repo

Hybrid Cloud Scraping

Use when: running Qdrant Hybrid Cloud and need cluster-level visibility.

Do not just scrape Qdrant nodes. In Hybrid Cloud, you manage the Kubernetes data plane. You must also scrape the cluster-exporter and operator pods for full cluster visibility and operator state.

• Hybrid Cloud Prometheus setup tutorial Hybrid Cloud Prometheus
• Official Grafana dashboards Grafana dashboard repo

Liveness and Readiness Probes

Use when: configuring Kubernetes health checks.

• Use /healthz, /livez, /readyz for basic status, liveness, and readiness Kubernetes health endpoints

Alerting

Use when: setting up alerts for production or Hybrid Cloud deployments.

• Hybrid Cloud provides ~11 pre-configured Prometheus alerts out of the box Cloud cluster monitoring
• Use AlertmanagerConfig to route alerts to Slack, PagerDuty, or other targets based on labels
• At minimum, alert on: optimizer errors, node not ready, replication factor below target, disk usage >80%

Log Centralization and Audit Logging

Use when: enterprise compliance requires centralized logs or audit trails.

• Enable JSON log format for structured analysis: set logger.format to json in config Configuration
• Use FluentD/OpenSearch for log aggregation
• Audit logs (v1.17+) write to local filesystem (/qdrant/storage/audit/), not stdout. Mount a Persistent Volume and deploy a sidecar container to tail these files to stdout so DaemonSets can pick them up. Audit logging

What NOT to Do

• Scrape /sys_metrics on self-hosted (only available on Qdrant Cloud)
• Scrape only Qdrant nodes in Hybrid Cloud (miss cluster-exporter and operator metrics)
• Skip monitoring setup before going to production (you will regret it)
• Alert on page cache memory usage (it's supposed to fill available RAM, normal OS behavior)