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rs3gw
High-Performance Enterprise Object Storage Gateway
rs3gw (Rust S3 Gateway) is an ultra-high-performance, enterprise-grade object storage gateway designed for AI/ML workloads, scientific computing (HPC), and large-scale data management. Built on Rust's zero-cost abstractions and powered by scirs2-io, it delivers S3-compatible access with predictable low latency, comprehensive observability, and advanced enterprise features.
๐ Key Features
Core Capabilities
- S3-Compatible API: Drop-in replacement for AWS S3 with 100+ operations
- Multiple API Protocols: REST, gRPC, GraphQL, and WebSocket streaming
- Zero-GC Performance: Rust's memory safety delivers predictable, sub-millisecond latency
- Edge Ready: Runs in containers as small as 50MB with minimal resource usage
- Streaming I/O: Zero-copy streaming handles GB/TB files without memory bloat
Advanced Storage Features
- Data Deduplication: Block-level deduplication with 30-70% storage savings
- Smart Caching: ML-based predictive cache with pattern recognition
- Transparent Compression: Automatic Zstd/LZ4 compression with intelligent compression ratios
- Multi-Backend Support: Local, MinIO, AWS S3, GCS, Azure Blob backends
- S3 Select: SQL queries on CSV, JSON, Parquet, Avro, ORC, Protobuf, MessagePack
Enterprise & Security
- Advanced Encryption: AES-256-GCM, ChaCha20-Poly1305 with envelope encryption
- ABAC: Attribute-Based Access Control with time windows and IP filtering
- Audit Logging: Immutable audit trail with cryptographic chain verification
- Compliance Reports: SOC2, HIPAA, GDPR automated reporting
- Object Lock: GOVERNANCE and COMPLIANCE modes with retention policies
Observability & Performance
- Distributed Tracing: OpenTelemetry integration with Jaeger/Tempo
- Prometheus Metrics: 50+ metrics for monitoring and alerting
- Anomaly Detection: Statistical analysis for performance anomalies
- Auto-Scaling: Dynamic resource adaptation based on load
- Continuous Profiling: CPU, memory, and I/O profiling with flamegraphs
High Availability
- Multi-Node Cluster: Multi-leader architecture with automatic failover
- Cross-Region Replication: WAN-optimized replication with conflict resolution
- Self-Healing: Automatic corruption detection and repair
- Backup & Recovery: Point-in-time recovery with incremental backups
๐๏ธ Architecture
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ Clients: PyTorch/TensorFlow | boto3 | aws-cli | gRPC | GraphQL โ
โโโโโโโโโโโโโโโโโโโโโโโโฌโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ HTTP/REST, gRPC, GraphQL, WebSocket
โโโโโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ rs3gw Gateway โ
โ โโโโโโโโโโโโโโโ โโโโโโโโโโโโโโโโ โโโโโโโโโโโโโโโโโโโโโโโโโโ โ
โ โ REST API โ โ gRPC API โ โ GraphQL + WebSocket โ โ
โ โ (100+ ops) โ โ (40+ ops) โ โ (Realtime events) โ โ
โ โโโโโโโโฌโโโโโโโ โโโโโโโโฌโโโโโโโโ โโโโโโโโโโโโฌโโโโโโโโโโโโโโ โ
โ โ โ โ โ
โ โโโโโโโโผโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโ โ
โ โ S3 Select Query Engine โ โ
โ โ SQL on CSV/JSON/Parquet/Avro/ORC with Optimization โ โ
โ โโโโโโโโโโโโโโโโโโโโโโโโโโโโฌโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ โ
โ โ โ
โ โโโโโโโโโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ โ
โ โ Advanced Features Layer โ โ
โ โ โโโโโโโโโโโโโโโ โโโโโโโโโโโโโโโ โโโโโโโโโโโโโโโโโโโโโโโโ โ โ
โ โ โ Dedup โ โ ML Cache โ โ Encryption/Compress โ โ โ
โ โ โ Zero-copy โ โ ABAC โ โ Audit/Compliance โ โ โ
โ โ โโโโโโโโโโโโโโโ โโโโโโโโโโโโโโโ โโโโโโโโโโโโโโโโโโโโโโโโ โ โ
โ โโโโโโโโโโโโโโโโโโโโโโโโโโโโฌโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ โ
โ โ โ
โ โโโโโโโโโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ โ
โ โ Multi-Backend Storage Abstraction โ โ
โ โ Local | MinIO | AWS S3 | GCS | Azure | Ceph โ โ
โ โโโโโโโโโโโโโโโโโโโโโโโโโโโโฌโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ scirs2-io High-Performance Storage Engine โ
โ โโโโโโโโโโโโโโโ โโโโโโโโโโโโโโโ โโโโโโโโโโโโโโโโโโโโโโโโโโโ โ
โ โ Compression โ โ Format I/O โ โ Async Buffer Management โ โ
โ โ (Zstd/LZ4) โ โ (Parquet) โ โ (Direct I/O) โ โ
โ โโโโโโโโโโโโโโโ โโโโโโโโโโโโโโโ โโโโโโโโโโโโโโโโโโโโโโโโโโโ โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
๐ฏ Quick Start
Prerequisites
- Rust 1.85 or later
- Linux, macOS, or Windows (WSL2)
- (Optional) Docker and Docker Compose
Installation
# Clone the repository
# Build release binary (optimized)
# Run the server
Docker Compose (Recommended for Development)
We provide a comprehensive development stack with monitoring:
# Start the full stack (rs3gw + Prometheus + Grafana + Jaeger + MinIO)
# Access services:
# - rs3gw S3 API: http://localhost:9000
# - Grafana Dashboard: http://localhost:3000 (admin/admin)
# - Prometheus: http://localhost:9091
# - Jaeger UI: http://localhost:16686
# - MinIO Console: http://localhost:9002 (minioadmin/minioadmin)
Configuration
rs3gw supports both TOML configuration files and environment variables:
- TOML Configuration: Copy
rs3gw.toml.exampletors3gw.tomland customize - Environment Variables: Copy
.env.exampleto.envand customize - See TODO.md for the complete list of 50+ configuration options
Essential Configuration:
๐ Usage Examples
AWS CLI
# Configure endpoint
# Create bucket and upload
# S3 Select query (SQL on CSV/JSON/Parquet)
Python (boto3)
=
# Basic operations
# S3 Select
=
# Multipart upload for large files
=
=
=
gRPC (High-Performance Binary Protocol)
use S3ServiceClient;
async
GraphQL
query {
buckets {
name
creationDate
objectCount
totalSize
}
searchObjects(query: "*.parquet", bucket: "my-bucket") {
key
size
lastModified
}
}
WebSocket (Real-Time Events)
const ws = ;
ws ;
Distributed Training API (AI/ML Workloads)
Manage machine learning training experiments, checkpoints, and hyperparameter searches:
# Create a training experiment
# Save a checkpoint
# Load a checkpoint
# Log training metrics
# Get experiment metrics
# List checkpoints
# Update experiment status
# Create hyperparameter search
# Add trial result to hyperparameter search
Python example with requests:
# Create experiment
=
=
=
# Save checkpoint during training
= # Your PyTorch model
=
=
# Log metrics every N steps
# ... training code ...
๐ ๏ธ Development Tools
Test Data Generator
Generate test datasets for benchmarking and testing:
# Generate a medium-sized mixed dataset
# Generate specific file types
S3 Migration Tool
Migrate data between S3-compatible systems:
# Copy all objects from MinIO to rs3gw
# Incremental sync with verification
# Verify data integrity
๐ Supported S3 Operations
Bucket Operations (26 operations)
- โ ListBuckets, CreateBucket, DeleteBucket, HeadBucket
- โ GetBucketLocation, GetBucketVersioning, PutBucketVersioning
- โ GetBucketTagging, PutBucketTagging, DeleteBucketTagging
- โ GetBucketPolicy, PutBucketPolicy, DeleteBucketPolicy
- โ GetBucketCors, PutBucketCors, DeleteBucketCors
- โ GetBucketEncryption, PutBucketEncryption, DeleteBucketEncryption
- โ GetBucketLifecycleConfiguration, PutBucketLifecycleConfiguration
- โ GetBucketReplication, PutBucketReplication
- โ GetBucketNotificationConfiguration, PutBucketNotificationConfiguration
- โ GetPublicAccessBlock, PutPublicAccessBlock
Object Operations (40+ operations)
- โ ListObjectsV1, ListObjectsV2, ListObjectVersions
- โ GetObject, PutObject, DeleteObject, DeleteObjects
- โ HeadObject, CopyObject, GetObjectAttributes
- โ GetObjectTagging, PutObjectTagging, DeleteObjectTagging
- โ GetObjectAcl, PutObjectAcl
- โ PostObject (browser upload)
- โ SelectObjectContent (S3 Select with SQL)
- โ Range requests, Conditional headers
- โ Object Lock (GetObjectRetention, PutObjectRetention, GetObjectLegalHold, PutObjectLegalHold)
Multipart Upload (7 operations)
- โ CreateMultipartUpload
- โ UploadPart, UploadPartCopy
- โ CompleteMultipartUpload
- โ AbortMultipartUpload
- โ ListParts, ListMultipartUploads
Advanced Features
- โ
S3 Select: SQL queries on CSV, JSON, Parquet, Avro, ORC, Protobuf, MessagePack
- Aggregations: SUM, AVG, COUNT, MIN, MAX
- GROUP BY, ORDER BY, LIMIT
- Column pruning and predicate pushdown for Parquet
- Query plan caching
- โ Presigned URLs: Temporary access URLs with expiration
- โ Server-Side Encryption: SSE-S3, SSE-C with AES-256-GCM
- โ Checksums: CRC32C, CRC32, SHA256, SHA1, MD5 validation
๐ง Advanced Configuration
Performance Tuning
# Data Deduplication (30-70% storage savings)
# Zero-Copy Optimizations
# Smart ML-based Caching
Security Configuration
# Encryption
# Audit Logging
# ABAC (Attribute-Based Access Control)
Cluster Configuration
# Multi-node cluster with replication
Observability
# OpenTelemetry distributed tracing
# Profiling
๐จ Object Transformations
rs3gw provides powerful server-side object transformation capabilities with extensible plugin support.
Supported Transformations
| Type | Feature Flag | Status | Use Cases |
|---|---|---|---|
| Image Processing | default | โ Production | Resize, crop, format conversion |
| Compression | default | โ Production | Zstd, Gzip, LZ4 |
| Video Transcoding | video-transcoding |
โ Production | Multi-codec video conversion |
| WASM Plugins | wasm-plugins |
โ Production | Custom extensible transformations |
Image Processing
// Resize and convert to WebP
use ;
let transform = Image ;
Features:
- Multiple resize modes (exact, fit, crop, by-width, by-height)
- Format conversion (JPEG, PNG, WebP, GIF, BMP, TIFF)
- Quality control for lossy formats
- Lanczos3 filtering for high-quality output
Video Transcoding
Requires: video-transcoding feature flag
# Build with video transcoding support
// Transcode to H.264
let transform = Video ;
Supported Codecs: H.264, H.265/HEVC, VP8, VP9, AV1
WASM Plugins
Requires: wasm-plugins feature flag
# Build with WASM plugin support
Create custom transformations in WebAssembly:
// Register and use custom plugin
let transformer = new;
let wasm_binary = read?;
transformer.register_plugin.await?;
let transform = WasmPlugin ;
Documentation:
- WASM Plugin Developer Guide - Complete guide for creating plugins
- Transformations Guide - Detailed transformation API reference
- Example Plugins - Sample WASM plugins in Rust
Build with All Features
# Build with all optional features enabled
# Available features:
# - io_uring: Linux io_uring support (Linux only)
# - video-transcoding: FFmpeg-based video transcoding (requires FFmpeg)
# - wasm-plugins: WebAssembly plugin system (Pure Rust)
๐ Performance
rs3gw delivers exceptional performance through Rust's zero-cost abstractions:
Benchmarks
Run comprehensive benchmarks:
# Storage operations
# S3 API operations
# Load testing
# Compression
Key Performance Features
- Zero-GC: No garbage collection pauses, predictable sub-millisecond latency
- Zero-Copy: Streaming large files without memory bloat
- Deduplication: 30-70% storage savings with content-defined chunking
- ML Cache: Predictive prefetching improves hit rates by 20-40%
- Query Optimization: Parquet column pruning reduces I/O by 50-80%
- Direct I/O: Kernel bypass for large objects (>1MB)
๐งช Testing
# Run all 392 tests (305 unit + 67 integration)
# Run integration tests only
# Run with code coverage
# Run specific test suite
# Run benchmarks
๐ Documentation
Guides
- Production Deployment Guide - Complete production deployment reference
- Performance Tuning Guide - Optimization recommendations
- Object Transformations Guide - Image, video, and custom transformations
- WASM Plugin Developer Guide - Creating custom WASM plugins
- rs3ctl CLI Reference - Management CLI documentation
- WebSocket Events Guide - Real-time event streaming
- TODO.md - Feature roadmap and implementation status
- benches/README.md - Benchmarking guide
Module Documentation
- src/api/README.md - API documentation
- src/storage/README.md - Storage engine
- src/auth/README.md - Authentication
Configuration Files
rs3gw.toml.example- TOML configuration template.env.example- Environment variable template
๐ข Production Deployment
๐ See the Production Deployment Guide for comprehensive deployment instructions.
Quick Start: Kubernetes
# Deploy with Kustomize
# Or with Helm
Monitoring
Access the Grafana dashboard (included in docker-compose.dev.yml):
- URL: http://localhost:3000
- Default credentials: admin/admin
- Pre-configured dashboards for:
- Request rates and latency percentiles
- Storage usage and object counts
- Cache hit rates
- Error rates by operation
๐ฌ SCIRS2 Policy Compliance
Rs3gw is fully compliant with the SCIRS2 (Scientific Rust) ecosystem policies. This ensures high-quality, reproducible, and scientifically sound code.
Key Compliance Areas
- โ Pure Rust: 100% Pure Rust in default features (C dependencies feature-gated)
- โ No Warnings: Zero compiler and clippy warnings enforced
- โ No Unwrap: All errors properly handled with Result types
- โ SciRS2 Integration: Uses scirs2-core for RNG and scirs2-io for storage
- โ Workspace Structure: Proper Cargo workspace with shared dependencies
- โ File Size Limits: All files under 2,000 lines (largest: 1,828 lines)
- โ Latest Crates: Dependencies kept up-to-date with crates.io
- โ Code Formatting: cargo fmt enforced on all code
Random Number Generation
Rs3gw uses scirs2-core::random instead of the standard rand crate for:
- Better reproducibility in scientific contexts
- Integration with SciRS2 statistical libraries
- Consistent behavior across the ecosystem
Verification
Verify policy compliance:
# Run all policy checks
# Individual checks
For detailed policy information, see SCIRS2_POLICY.md.
๐ค Contributing
We welcome contributions! Please see our development process:
- Fork the repository
- Create a feature branch
- Run tests:
cargo nextest run --all-features - Run clippy:
cargo clippy --all-features - Ensure no unwrap() in production code
- Keep files under 2000 lines (use splitrs if needed)
- Submit a pull request
๐ Project Statistics
- Language: Rust (100% Pure Rust default features)
- Lines of Code: ~52,559 code lines (63,662 total including comments and blanks)
- Test Coverage: 550 comprehensive tests (100% passing)
- Modules: 134 Rust files
- Dependencies: Carefully selected for performance and security (all up-to-date)
- Policy Compliance: 100% SCIRS2 compliant
๐ License
This project is dual-licensed under:
Choose the license that best fits your use case.
๐ Acknowledgments
- scirs2-core - Scientific computing core (RNG, statistics)
- scirs2-io - High-performance storage engine
- Axum - Web framework
- Tokio - Async runtime
- Tonic - gRPC framework
- Apache Arrow - Columnar data format
๐ Links
Built with โค๏ธ in Rust for performance-critical workloads