| Feature/Aspect | GreptimeDB | VictoriaTraces |
|---|---|---|
| Data Model | Unified Observability Database | Distributed Tracing Backend |
| Value Model | Multi-Value (supports complex data structures) | Trace spans with attributes |
| Multi-model Support | Metrics, Logs & Traces in one database | Traces only (requires VictoriaMetrics and VictoriaLogs for full observability) |
| Query Languages | SQL & PromQL (dual interface) | TraceQL-compatible queries |
| Ingestion Protocols | SQL gRPC InfluxDB Line Protocol Prometheus Remote Storage OpenTelemetry Jaeger Loki Push API Elasticsearch Bulk API HTTP API | OpenTelemetry Protocol (OTLP) Jaeger Zipkin |
| Data Retention | Flexible TTL policies with tiered storage | Configurable retention with automatic cleanup |
| Continuous Aggregation | Built-in SQL aggregation, Pipeline ETL engine & Flow streaming computation | Trace-based metrics and service graphs |
| Deployment Complexity | Single system deployment | Single-node or cluster deployment with optional multi-tenancy |
| Use Cases | Unified observability, real-time analytics, IoT monitoring, edge computing | Distributed tracing, request flow analysis, latency troubleshooting, trace-based alerting |
| Architecture | Cloud-native distributed with compute-storage separation | Cluster architecture with distributed components |
| Storage Format | Apache Parquet (columnar, compressed) | Optimized trace storage format |
| Storage Scalability | Object storage integration with unlimited capacity | Scalable storage with cluster deployment support |
| High Availability | Native clustering with automatic failover | Cluster mode with replication support |
| License | Apache 2.0 | Apache 2.0 |
| Written Language | Rust (memory safety, performance) | Go (ecosystem compatibility) |
| Deployment Options | Single-node, cluster, Kubernetes-native, edge-to-cloud with unified API | Single-node, cluster with Kubernetes via Helm charts |
| Operational Complexity | Single unified system with simplified Kubernetes operations | Part of VictoriaMetrics ecosystem (requires VictoriaMetrics and VictoriaLogs for full stack) |
| Visualization | Grafana, Jaeger UI, custom dashboards via SQL | Grafana and Jaeger UI support |
| Alerting | Unified alerting across metrics, logs, and traces | Trace-based alerting via vmalert |