Monitoring System
How Pigsty’s monitoring system is architected and how monitored targets are automatically managed.
Pigsty’s monitoring system has three pillars—metrics, logs, and alerting—and is available out of the box. Logs and alerts are also important inputs for audit and traceability. It can monitor clusters managed by Pigsty, existing PostgreSQL clusters, and external RDS services.
Monitoring Targets
Pigsty monitoring covers these core targets:
- PostgreSQL clusters and instances (SQL performance, connections, replication, transactions, checkpoints, WAL)
- Infrastructure components (Grafana, VictoriaMetrics, Alertmanager, Nginx, etc.)
- Host nodes (CPU, memory, disk, network, kernel)
- Key middleware (ETCD, MINIO, REDIS, FERRET, JUICE, VIBE, etc.)
Technology Stack
| Component | Purpose |
|---|---|
| Grafana | Visualization dashboards, unified entry point, alert views |
| VictoriaMetrics | Time-series metric ingestion, storage, and query |
| VictoriaLogs | Structured log ingestion, indexing, and search |
| VMAlert + Alertmanager | Alert rule evaluation and notification delivery |
| Exporter / Agent | Database/system metric exposure and log forwarding |
Onboarding Modes
Pigsty supports three monitoring onboarding modes:
| Mode | Use Case | Entry |
|---|---|---|
FULL | Database is deployed and managed directly by Pigsty | PGSQL Monitoring System |
MANAGED | Existing PostgreSQL cluster with SSH-manageable nodes | Monitor Existing Cluster |
RDS | Cloud database accessible only by connection string | Monitor RDS |
Continue Reading
- PGSQL Monitoring System: Database metrics, logs, alerting, and dashboards
- INFRA Monitoring & Alerting: Health of the monitoring stack itself
- NODE Monitoring & Alerting: Host resource and system health
- ETCD Monitoring & Alerting: Consistency and availability monitoring
- MINIO Monitoring & Alerting: Object storage cluster monitoring
- REDIS Monitoring & Alerting: Cache cluster runtime monitoring
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