SQLite async connection pool for high-performance
10 months ago
- #asyncio
- #performance
- #SQLite
- aiosqlitepool is a high-performance connection pool for asyncio SQLite applications, not a SQLite database driver itself.
- It eliminates connection overhead, keeps SQLite's in-memory page cache 'hot', and maximizes concurrent throughput.
- Installation requires aiosqlite as a peer dependency and can be done via pip, uv, or Poetry.
- Usage involves providing a connection_factory function and managing transactions manually.
- Configuration includes setting high-performance SQLite pragmas for optimized operations.
- Integration with FastAPI is demonstrated, including lifecycle management and dependency injection.
- SQLiteConnectionPool parameters include connection_factory, pool_size, acquisition_timeout, and idle_timeout.
- Connection pooling is beneficial for high-traffic services, high-throughput jobs, and applications requiring low latency.
- Benchmarks show significant performance improvements with connection pooling, especially under concurrent loads.
- Compatibility requires async methods execute, rollback, and close, with tested support for aiosqlite and other libraries.