CnosDB vs OpenTSDB
CnosDB
cnosdb.comOpenTSDB
opentsdb.netSide by side
| Figure | CnosDB | OpenTSDB |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Windows | — | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 1 |
| Spec score · Time-Series Databases | 8.5 (#6) | 7.6 (#26) |
| Integrations | The ecosystem integration page lists LangChain, Grafana, Jaeger, Kafka, Prometheus, Telegraf, TensorFlow, and Vector. | The docs say open-source tools including Grafana and Bosun can access OpenTSDB data. |
| License | The official site says the standalone, distributed, and ecosystem tools use the AGPL-3.0 open-source license. | The FAQ says OpenTSDB uses the GNU LGPL v2.1 or later. |
| Querying | CnosDB supports standard SQL and time-based aggregation queries. | Data can be queried with CLI tools or an HTTP API and viewed as a GnuPlot graph. |
| Security | The configuration documentation provides optional TLS certificate and private key settings. | The FAQ says OpenTSDB has not undergone a security review and does not include authentication, and recommends restricting untrusted access through a secured HTTP proxy. |
Plans
In their own words
CnosDB
CnosDB is an open-source distributed time-series database for workloads such as IoT, industrial internet, connected vehicles, and IT operations. It supports standard SQL, time-based aggregation, and a DataFrame API. Data can be written without a predefined schema, including out of order, and historical data can be replenished. Ingestion methods include SQL, Line Protocol, OpenTSDB, Elasticsearch bulk, Loki, NDJSON, and OpenTelemetry. Deployment options include standalone, distributed, and storage-compute separated modes, on public, private, or hybrid clouds. The documentation describes horizontal scaling for storage and stateless compute nodes. Integrations include Grafana, Prometheus, Telegraf, JDBC, and a Python SDK; the open-source Python connector provides a PEP 249 interface for SQLAlchemy and pandas. Import and export formats include PARQUET, CSV, and JSON with AWS S3, Google Cloud Storage, and Azure Blob Storage. CnosDB documents retention policies, multi-tenancy, and role-based permissions, as well as optional TLS certificate and private-key settings. Community Edition is free under AGPL-3.0.