InfluxDB
also: InfluxDB 3
Purpose-built time-series database for metrics, sensor, and event data, available as open source and as a managed cloud service.
InfluxDB stores timestamped measurements with tags and fields, with retention policies and downsampling. Query languages and storage engines have changed between major versions, so the version in use matters when reading documentation or planning upgrades.
Where it bites: migrations between major versions, high series cardinality (too many unique tag values) degrading performance, and retention and downsampling that need designing up front.
Outside help is worth it for schema and tag design, retention planning, version migrations, and ingest from MQTT gateways.
Common requests
- Schema and tag design
- Retention and downsampling
- Migrating between major versions
- Ingest from MQTT and gateways
Founder takeaway
Keep high-cardinality values such as serial numbers out of indexed tags unless you've tested the scale.
official site: influxdata.com · InfluxData
engineer review pending