Related to "Internals"
Data retention in InfluxDB Clustered
InfluxDB Clustered enforces database retention periods at query time and, to optimize storage, routinely deletes Parquet files containing only expired data.
InfluxDB v3 storage engine architecture
The InfluxDB v3 storage engine is a real-time, columnar database optimized for time series data that supports infinite tag cardinality, real-time queries, and is optimized to reduce storage cost.