InfluxDB Time Series

InfluxDB is a time-series database designed for storing and querying metrics at massive scale. Unlike relational databases (PostgreSQL, MySQL), InfluxDB optimizes for high-cardinality, time-ordered data: sensor readings, application metrics, stock prices. Data is stored in columnar format with aggressive compression. Queries on time-range + tags are extremely fast (queries over 1B points in <100ms). Designed for immutable write-once workflows (no updates).