
Apache IoTDB
7.7#3 in time-series databasesFree planFree planWebAPILinuxmacOS
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| Fact | Apache IoTDB | KairosDB |
|---|---|---|
| Deployment | The project describes cloud installation, a desktop terminal tool, and a data synchronization tool connecting cloud and on-premise machines. | The documentation says KairosDB runs under Kubernetes and is mostly stateless, while Cassandra can be harder to run efficiently there. |
| Product | Apache IoTDB is an industrial IoT time-series database for collecting, storing, managing, and analyzing IoT time-series data with edge-cloud collaboration. | KairosDB is a distributed time-series database built on Cassandra. |
| Queries | Its query features include time alignment across devices and sensors, time-series computation, and time-dimension aggregation functions. | The REST API supports querying by metric and time range, with optional tags, aggregation, averaging, min and max calculations, and downsampling. |
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It suits teams collecting and querying industrial IoT time-series data across edge and cloud deployments. Users planning Java ingestion should account for the documented JDBC write limitation.
KairosDB suits developers and operators building self-hosted, distributed time-series systems. It fits teams needing multiple ingestion protocols, retention, scaling, and Cassandra-backed storage.