CnosDB vs KairosDB
CnosDB
cnosdb.comKairosDB
kairosdb.github.ioSide by side
| Figure | CnosDB | KairosDB |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | — | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 0 |
| Spec score · Time-Series Databases | 8.5 (#6) | 7.3 (#31) |
| Deployment | The installation guide provides a Docker command for running the community image. | The documentation says KairosDB runs under Kubernetes and is mostly stateless, while Cassandra can be harder to run efficiently there. |
| License | The official site says the standalone, distributed, and ecosystem tools use the AGPL-3.0 open-source license. | The repository identifies the license as Apache License 2.0. |
| Product | CnosDB is an open-source distributed time-series database designed for high performance, compression, and ease of use. | KairosDB is a distributed time-series database built on Cassandra. |
| Security | The configuration documentation provides optional TLS certificate and private key settings. | The KairosDB pages reviewed do not state security certifications or compliance claims. |
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.
KairosDB
KairosDB has no write-up on Specifiction yet; its figures are above.