rsylla¶

The fastest Python driver for ScyllaDB

High-performance Python bindings using the official scylla-rust-driver

Why rsylla?¶

rsylla delivers exceptional performance for Python applications connecting to ScyllaDB and Cassandra:

~3.9x Faster

Outperforms the DataStax cassandra-driver by nearly 4x in read/write operations
85,000+ ops/sec

Achieve over 85,000 operations per second for read and write workloads
Sub-millisecond Latency

Average latencies of 0.37-0.43ms for prepared statement operations
Zero-Copy Design

Efficient data handling with minimal memory overhead between Rust and Python

Performance Comparison¶

Based on comprehensive benchmarks with 32 concurrent clients:

Operation	rsylla	acsylla	cassandra-driver
Read (prepared)	85,920 ops/s	71,450 ops/s	22,160 ops/s
Write (prepared)	81,260 ops/s	66,720 ops/s	20,340 ops/s
Latency (avg)	0.37-0.43 ms	0.45-0.54 ms	1.44-1.67 ms

See detailed benchmarks

Quick Example¶

import asyncio
from rsylla import Session

async def main():
    # Connect to ScyllaDB cluster
    session = await Session.connect(["127.0.0.1:9042"])

    # Execute a query
    result = await session.execute(
        "SELECT * FROM users WHERE id = ?",
        {"id": 123}
    )

    # Iterate over rows
    for row in result:
        print(row.columns())

asyncio.run(main())

Features¶

Native Rust Performance

Built on top of the official Rust driver for ScyllaDB, ensuring maximum throughput and reliability.
Full API Coverage

Every function and method from the Rust driver has a Python equivalent with comprehensive type hints.
Async Runtime

Efficient async operations powered by Tokio, integrating seamlessly with Python's asyncio.
Easy to Use

Pythonic API that feels natural, with extensive documentation and examples.

Installation¶

pipFrom Source

pip install rsylla

# Install Rust and maturin
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
pip install maturin

# Clone and build
git clone https://github.com/r4fek/rsylla.git
cd rsylla
maturin develop --release

Get Started

Core Components¶

Component	Description
Session	Main entry point for database operations
SessionBuilder	Fluent builder for session configuration
Query	Configurable query with consistency levels and options
PreparedStatement	Pre-compiled statements for optimal performance
Batch	Atomic batch operations
QueryResult	Result set with iteration and type conversion

What's Next?¶

Getting Started

Follow our step-by-step tutorial to build your first application

Tutorial
API Reference

Complete documentation for all classes and methods

API Docs
Examples

Real-world code examples and patterns

Examples
Best Practices

Production-ready patterns and optimizations

Best Practices

License¶

rsylla is dual-licensed under MIT or Apache-2.0, matching the scylla-rust-driver license.