LinDB is a free, open-source distributed time-series database designed for cloud-native use and horizontal scaling. Its documented applications include IoT and IT operations monitoring, storing and analyzing metrics across IaaS, PaaS, SaaS and application layers. A schema-free multidimensional model represents data through metrics, tags and fields. Users can insert and query data through client libraries, an HTTP REST API or supported ingestion protocols; LinQL provides SQL-like query syntax. The system supports replicas, scaling across multiple IDCs and writes in either IDC, with cross-IDC querying and aggregation. It automatically creates minute, hour and day rollups after database creation. Computation and storage are separated, and ETCD is the only external dependency identified in the documentation. LinDB can run in standalone or cluster mode, with package guides for Linux, Windows and macOS and a Docker guide for Linux. Its documented data scope is numeric time series with time precision up to one second. It is not intended for text records or finer-grained time accuracy. The maker also describes a single server supporting more than one million write transactions per second.
Who it is for
LinDB suits teams building IoT or IT operations monitoring around numeric metrics, including deployments that need replicas, horizontal scaling or multiple IDCs. It is not suited to text records or time precision finer than one second.
What is good
- Free and open source under Apache 2.0.
- Supports horizontal scaling and multiple replicas.
- Automatically creates minute, hour and day rollups.
- Offers HTTP REST API and SQL-like LinQL queries.
- Documented packages cover Linux, Windows and macOS.
What to know first
- Stores numeric time-series data, not text records.
- Time accuracy is limited to one second.
- ETCD is an external dependency.
Verdict
LinDB provides a scalable metric database with multiple ingestion options, rollups and cross-IDC support. Its numeric-only data model and one-second precision limit make it a poor fit for text records or finer-grained timing needs.
LinDB plans and pricing
All plansCompared on time-series databases
- Deployment
- self_hosted
- SQL support
- Yes
- Retention policies
- Yes
- Horizontal scaling
- Yes
- Query languages
- LinQL; SQL-like query syntax
- Ingestion methods
- Client libraries; HTTP REST API; InfluxDB Line Protocol
