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.

🚀 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

🏗️ Architecture

┌─────────────────────────────────────────────────────────────────┐
│  Clients: PyTorch/TensorFlow | boto3 | aws-cli | gRPC | GraphQL │
└──────────────────────┬──────────────────────────────────────────┘
                       │ HTTP/REST, gRPC, GraphQL, WebSocket
┌──────────────────────▼──────────────────────────────────────────┐
│                       rs3gw Gateway                              │
│  ┌─────────────┐  ┌──────────────┐  ┌────────────────────────┐  │
│  │ REST API    │  │  gRPC API    │  │  GraphQL + WebSocket   │  │
│  │ (100+ ops)  │  │  (40+ ops)   │  │  (Realtime events)     │  │
│  └──────┬──────┘  └──────┬───────┘  └──────────┬─────────────┘  │
│         │                │                     │                │
│  ┌──────▼────────────────▼─────────────────────▼─────────────┐  │
│  │              S3 Select Query Engine                        │  │
│  │   SQL on CSV/JSON/Parquet/Avro/ORC with Optimization      │  │
│  └──────────────────────────┬─────────────────────────────────┘  │
│                             │                                   │
│  ┌──────────────────────────▼─────────────────────────────────┐  │
│  │           Advanced Features Layer                          │  │
│  │  ┌─────────────┐ ┌─────────────┐ ┌──────────────────────┐  │  │
│  │  │ Dedup       │ │ ML Cache    │ │ Encryption/Compress  │  │  │
│  │  │ Zero-copy   │ │ ABAC        │ │ Audit/Compliance     │  │  │
│  │  └─────────────┘ └─────────────┘ └──────────────────────┘  │  │
│  └──────────────────────────┬─────────────────────────────────┘  │
│                             │                                   │
│  ┌──────────────────────────▼─────────────────────────────────┐  │
│  │        Multi-Backend Storage Abstraction                   │  │
│  │   Local | MinIO | AWS S3 | GCS | Azure | Ceph             │  │
│  └──────────────────────────┬─────────────────────────────────┘  │
└─────────────────────────────┼─────────────────────────────────────┘
                              │
┌─────────────────────────────▼─────────────────────────────────────┐
│        scirs2-io High-Performance Storage Engine                 │
│  ┌─────────────┐  ┌─────────────┐  ┌─────────────────────────┐   │
│  │ Compression │  │ Format I/O  │  │ Async Buffer Management │   │
│  │ (Zstd/LZ4)  │  │ (Parquet)   │  │ (Direct I/O)            │   │
│  └─────────────┘  └─────────────┘  └─────────────────────────┘   │
└───────────────────────────────────────────────────────────────────┘

🎯 Quick Start

Prerequisites

• Rust 1.85 or later
• Linux, macOS, or Windows (WSL2)
• (Optional) Docker and Docker Compose

Installation

# Clone the repository
git clone https://github.com/cool-japan/rs3gw.git
cd rs3gw

# Build release binary (optimized)
cargo build --release

# Run the server
./target/release/rs3gw

Docker Compose (Recommended for Development)

We provide a comprehensive development stack with monitoring:

# Start the full stack (rs3gw + Prometheus + Grafana + Jaeger + MinIO)
docker-compose -f docker-compose.dev.yml up -d

# 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.example to rs3gw.toml and customize
• Environment Variables: Copy .env.example to .env and customize
• See TODO.md for the complete list of 50+ configuration options

Essential Configuration:

export RS3GW_BIND_ADDR="0.0.0.0:9000"
export RS3GW_STORAGE_ROOT="./data"
export RS3GW_ACCESS_KEY="minioadmin"
export RS3GW_SECRET_KEY="minioadmin"
export RS3GW_COMPRESSION="zstd:3"
export RS3GW_CACHE_ENABLED="true"
export RS3GW_DEDUP_ENABLED="true"

📚 Usage Examples

AWS CLI

# Configure endpoint
aws configure set default.s3.endpoint_url http://localhost:9000

# Create bucket and upload
aws s3 mb s3://my-bucket
aws s3 cp myfile.txt s3://my-bucket/

# S3 Select query (SQL on CSV/JSON/Parquet)
aws s3api select-object-content \
  --bucket my-bucket \
  --key data.csv \
  --expression "SELECT * FROM S3Object WHERE age > 30" \
  --expression-type SQL \
  --input-serialization '{"CSV": {"FileHeaderInfo": "USE"}}' \
  --output-serialization '{"CSV": {}}' \
  output.csv

Python (boto3)

import boto3

s3 = boto3.client(
    's3',
    endpoint_url='http://localhost:9000',
    aws_access_key_id='minioadmin',
    aws_secret_access_key='minioadmin',
    region_name='us-east-1'
)

# Basic operations
s3.create_bucket(Bucket='my-bucket')
s3.upload_file('local.txt', 'my-bucket', 'remote.txt')

# S3 Select
response = s3.select_object_content(
    Bucket='my-bucket',
    Key='data.csv',
    ExpressionType='SQL',
    Expression='SELECT name, age FROM S3Object WHERE age > 25',
    InputSerialization={'CSV': {'FileHeaderInfo': 'USE'}},
    OutputSerialization={'CSV': {}}
)

# Multipart upload for large files
mpu = s3.create_multipart_upload(Bucket='my-bucket', Key='large.dat')
parts = []
for i, chunk in enumerate(read_chunks('large.dat', 5*1024*1024), 1):
    part = s3.upload_part(
        Bucket='my-bucket', Key='large.dat',
        PartNumber=i, UploadId=mpu['UploadId'],
        Body=chunk
    )
    parts.append({'PartNumber': i, 'ETag': part['ETag']})
s3.complete_multipart_upload(
    Bucket='my-bucket', Key='large.dat',
    UploadId=mpu['UploadId'],
    MultipartUpload={'Parts': parts}
)

gRPC (High-Performance Binary Protocol)

use rs3gw_proto::s3_service_client::S3ServiceClient;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let mut client = S3ServiceClient::connect("http://localhost:9000").await?;

    let request = tonic::Request::new(ListBucketsRequest {});
    let response = client.list_buckets(request).await?;

    for bucket in response.into_inner().buckets {
        println!("Bucket: {}", bucket.name);
    }

    Ok(())
}

GraphQL

query {
  buckets {
    name
    creationDate
    objectCount
    totalSize
  }

  searchObjects(query: "*.parquet", bucket: "my-bucket") {
    key
    size
    lastModified
  }
}

WebSocket (Real-Time Events)

const ws = new WebSocket('ws://localhost:9000/events/stream?bucket=my-bucket');

ws.onmessage = (event) => {
  const data = JSON.parse(event.data);
  console.log('Event:', data.event_type, data.object_key);
};

Distributed Training API (AI/ML Workloads)

Manage machine learning training experiments, checkpoints, and hyperparameter searches:

# Create a training experiment
curl -X POST http://localhost:9000/api/training/experiments \
  -H "Content-Type: application/json" \
  -d '{
    "name": "my-model-training",
    "description": "Training ResNet-50 on ImageNet",
    "tags": ["resnet", "imagenet"],
    "hyperparameters": {
      "learning_rate": 0.001,
      "batch_size": 32,
      "epochs": 100
    }
  }'

# Save a checkpoint
curl -X POST http://localhost:9000/api/training/experiments/{experiment_id}/checkpoints \
  -H "Content-Type: application/json" \
  -d '{
    "epoch": 10,
    "model_state": "base64_encoded_model_data",
    "optimizer_state": "base64_encoded_optimizer_data",
    "metrics": {
      "loss": 0.234,
      "accuracy": 0.892
    }
  }'

# Load a checkpoint
curl http://localhost:9000/api/training/checkpoints/{checkpoint_id}

# Log training metrics
curl -X POST http://localhost:9000/api/training/experiments/{experiment_id}/metrics \
  -H "Content-Type: application/json" \
  -d '{
    "step": 1000,
    "metrics": {
      "loss": 0.234,
      "accuracy": 0.892,
      "val_loss": 0.256,
      "val_accuracy": 0.875
    }
  }'

# Get experiment metrics
curl http://localhost:9000/api/training/experiments/{experiment_id}/metrics

# List checkpoints
curl http://localhost:9000/api/training/experiments/{experiment_id}/checkpoints

# Update experiment status
curl -X PUT http://localhost:9000/api/training/experiments/{experiment_id}/status \
  -H "Content-Type: application/json" \
  -d '{"status": "completed"}'

# Create hyperparameter search
curl -X POST http://localhost:9000/api/training/searches \
  -H "Content-Type: application/json" \
  -d '{
    "search_space": {
      "learning_rate": [0.0001, 0.001, 0.01],
      "batch_size": [16, 32, 64]
    },
    "optimization_metric": "val_accuracy"
  }'

# Add trial result to hyperparameter search
curl -X POST http://localhost:9000/api/training/searches/{search_id}/trials \
  -H "Content-Type: application/json" \
  -d '{
    "parameters": {
      "learning_rate": 0.001,
      "batch_size": 32
    },
    "metrics": {
      "val_accuracy": 0.892
    },
    "status": "completed"
  }'

Python example with requests:

import requests
import base64
import json

# Create experiment
response = requests.post('http://localhost:9000/api/training/experiments', json={
    'name': 'pytorch-training',
    'description': 'Training with PyTorch',
    'tags': ['pytorch', 'cnn'],
    'hyperparameters': {
        'lr': 0.001,
        'batch_size': 32
    }
})
experiment = response.json()['experiment']
exp_id = experiment['id']

# Save checkpoint during training
import torch

model_state = torch.save(model.state_dict())  # Your PyTorch model
model_bytes = pickle.dumps(model_state)
model_b64 = base64.b64encode(model_bytes).decode('utf-8')

requests.post(f'http://localhost:9000/api/training/experiments/{exp_id}/checkpoints', json={
    'epoch': 10,
    'model_state': model_b64,
    'metrics': {
        'loss': 0.234,
        'accuracy': 0.892
    }
})

# Log metrics every N steps
for step in range(1000):
    # ... training code ...
    if step % 100 == 0:
        requests.post(f'http://localhost:9000/api/training/experiments/{exp_id}/metrics', json={
            'step': step,
            'metrics': {
                'loss': current_loss,
                'accuracy': current_acc
            }
        })

🛠️ Development Tools

Test Data Generator

Generate test datasets for benchmarking and testing:

# Generate a medium-sized mixed dataset
cargo run --bin testdata-generator -- dataset \
  --output ./testdata \
  --size medium

# Generate specific file types
cargo run --bin testdata-generator -- parquet \
  --output ./parquet-data \
  --count 10 \
  --rows 100000

S3 Migration Tool

Migrate data between S3-compatible systems:

# Copy all objects from MinIO to rs3gw
cargo run --bin s3-migrate -- copy \
  --source-endpoint http://minio:9000 \
  --source-access-key minioadmin \
  --source-secret-key minioadmin \
  --source-bucket source-bucket \
  --dest-endpoint http://localhost:9000 \
  --dest-access-key minioadmin \
  --dest-secret-key minioadmin \
  --dest-bucket dest-bucket \
  --concurrency 20

# Incremental sync with verification
cargo run --bin s3-migrate -- sync \
  --source-endpoint http://minio:9000 \
  --source-access-key minioadmin \
  --source-secret-key minioadmin \
  --source-bucket source-bucket \
  --dest-endpoint http://localhost:9000 \
  --dest-access-key minioadmin \
  --dest-secret-key minioadmin \
  --dest-bucket dest-bucket \
  --delete

# Verify data integrity
cargo run --bin s3-migrate -- verify \
  --source-endpoint http://minio:9000 \
  --source-access-key minioadmin \
  --source-secret-key minioadmin \
  --source-bucket source-bucket \
  --dest-endpoint http://localhost:9000 \
  --dest-access-key minioadmin \
  --dest-secret-key minioadmin \
  --dest-bucket dest-bucket

📊 Supported S3 Operations

Bucket Operations (26 operations)

• ✅ ListBuckets, CreateBucket, DeleteBucket, HeadBucket
• ✅ GetBucketLocation, GetBucketVersioning, PutBucketVersioning
• ✅ GetBucketTagging, PutBucketTagging, DeleteBucketTagging
• ✅ GetBucketPolicy, PutBucketPolicy, DeleteBucketPolicy
• ✅ GetBucketCors, PutBucketCors, DeleteBucketCors
• ✅ GetBucketEncryption, PutBucketEncryption, DeleteBucketEncryption
• ✅ GetBucketLifecycleConfiguration, PutBucketLifecycleConfiguration
• ✅ GetBucketReplication, PutBucketReplication
• ✅ GetBucketNotificationConfiguration, PutBucketNotificationConfiguration
• ✅ GetPublicAccessBlock, PutPublicAccessBlock

Object Operations (40+ operations)

• ✅ ListObjectsV1, ListObjectsV2, ListObjectVersions
• ✅ GetObject, PutObject, DeleteObject, DeleteObjects
• ✅ HeadObject, CopyObject, GetObjectAttributes
• ✅ GetObjectTagging, PutObjectTagging, DeleteObjectTagging
• ✅ GetObjectAcl, PutObjectAcl
• ✅ PostObject (browser upload)
• ✅ SelectObjectContent (S3 Select with SQL)
• ✅ Range requests, Conditional headers
• ✅ Object Lock (GetObjectRetention, PutObjectRetention, GetObjectLegalHold, PutObjectLegalHold)

Multipart Upload (7 operations)

• ✅ CreateMultipartUpload
• ✅ UploadPart, UploadPartCopy
• ✅ CompleteMultipartUpload
• ✅ AbortMultipartUpload
• ✅ ListParts, ListMultipartUploads

Advanced Features

• ✅ 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
• ✅ Presigned URLs: Temporary access URLs with expiration
• ✅ Server-Side Encryption: SSE-S3, SSE-C with AES-256-GCM
• ✅ Checksums: CRC32C, CRC32, SHA256, SHA1, MD5 validation

🔧 Advanced Configuration

Performance Tuning

# Data Deduplication (30-70% storage savings)
export RS3GW_DEDUP_ENABLED=true
export RS3GW_DEDUP_BLOCK_SIZE=65536
export RS3GW_DEDUP_ALGORITHM=content-defined

# Zero-Copy Optimizations
export RS3GW_ZEROCOPY_DIRECT_IO=true
export RS3GW_ZEROCOPY_SPLICE=true
export RS3GW_ZEROCOPY_MMAP=true

# Smart ML-based Caching
export RS3GW_CACHE_ENABLED=true
export RS3GW_CACHE_MAX_SIZE_MB=512
export RS3GW_CACHE_TTL=300

Security Configuration

# Encryption
export RS3GW_ENCRYPTION_ENABLED=true
export RS3GW_ENCRYPTION_ALGORITHM=aes256gcm

# Audit Logging
export RS3GW_AUDIT_ENABLED=true
export RS3GW_AUDIT_LOG_PATH=/var/log/rs3gw/audit.log

# ABAC (Attribute-Based Access Control)
export RS3GW_ABAC_ENABLED=true

Cluster Configuration

# Multi-node cluster with replication
export RS3GW_CLUSTER_ENABLED=true
export RS3GW_CLUSTER_NODE_ID=node1
export RS3GW_CLUSTER_ADVERTISE_ADDR=10.0.0.1:9001
export RS3GW_CLUSTER_SEED_NODES=10.0.0.2:9001,10.0.0.3:9001
export RS3GW_REPLICATION_MODE=quorum
export RS3GW_REPLICATION_FACTOR=3

Observability

# OpenTelemetry distributed tracing
export OTEL_EXPORTER_OTLP_ENDPOINT=http://jaeger:4317
export OTEL_TRACES_SAMPLER=traceidratio
export OTEL_TRACES_SAMPLER_ARG=0.1

# Profiling
export RS3GW_PROFILING_ENABLED=true
export RS3GW_PROFILING_INTERVAL_SECS=60

🎨 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	✅ Production	Resize, crop, format conversion
Compression	default	✅ Production	Zstd, Gzip, LZ4
Video Transcoding	video-transcoding	✅ Production	Multi-codec video conversion
WASM Plugins	wasm-plugins	✅ Production	Custom extensible transformations

Image Processing

// Resize and convert to WebP
use rs3gw::storage::transformations::{TransformationType, ImageTransformParams};

let transform = TransformationType::Image {
    params: ImageTransformParams {
        width: Some(800),
        height: None,  // Maintains aspect ratio
        format: Some(ImageFormat::Webp),
        quality: Some(85),
        maintain_aspect_ratio: true,
        crop_mode: None,
    }
};

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
cargo build --features video-transcoding

// Transcode to H.264
let transform = TransformationType::Video {
    params: VideoTransformParams {
        codec: VideoCodec::H264,
        bitrate: Some(2000),  // 2000 kbps
        fps: Some(30),
        width: Some(1920),
        height: Some(1080),
        audio_codec: Some("aac".to_string()),
        audio_bitrate: Some(128),
    }
};

Supported Codecs: H.264, H.265/HEVC, VP8, VP9, AV1

WASM Plugins

Requires: wasm-plugins feature flag

# Build with WASM plugin support
cargo build --features wasm-plugins

Create custom transformations in WebAssembly:

// Register and use custom plugin
let transformer = WasmPluginTransformer::new();
let wasm_binary = std::fs::read("plugins/my-plugin.wasm")?;
transformer.register_plugin("my-plugin".to_string(), wasm_binary).await?;

let transform = TransformationType::WasmPlugin {
    plugin_name: "my-plugin".to_string(),
    params: HashMap::new(),
};

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
cargo build --all-features --release

# 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)

📈 Performance

rs3gw delivers exceptional performance through Rust's zero-cost abstractions:

Benchmarks

Run comprehensive benchmarks:

# Storage operations
cargo bench --bench storage_benchmarks

# S3 API operations
cargo bench --bench s3_api_benchmarks

# Load testing
cargo bench --bench load_testing_benchmarks

# Compression
cargo bench --bench compression_benchmarks

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)

🧪 Testing

# Run all 392 tests (305 unit + 67 integration)
cargo nextest run --all-features

# Run integration tests only
cargo test --test '*'

# Run with code coverage
cargo tarpaulin --all-features --out Html

# Run specific test suite
cargo test --test grpc_tests

# Run benchmarks
cargo bench

📖 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

🏢 Production Deployment

📘 See the Production Deployment Guide for comprehensive deployment instructions.

Quick Start: Kubernetes

# Deploy with Kustomize
kubectl apply -k k8s/overlays/production/

# Or with Helm
helm install rs3gw k8s/helm/rs3gw/ \
  --set replicaCount=3 \
  --set persistence.size=500Gi

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

🔬 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

• ✅ Pure Rust: 100% Pure Rust in default features (C dependencies feature-gated)
• ✅ No Warnings: Zero compiler and clippy warnings enforced
• ✅ No Unwrap: All errors properly handled with Result types
• ✅ SciRS2 Integration: Uses scirs2-core for RNG and scirs2-io for storage
• ✅ Workspace Structure: Proper Cargo workspace with shared dependencies
• ✅ File Size Limits: All files under 2,000 lines (largest: 1,828 lines)
• ✅ Latest Crates: Dependencies kept up-to-date with crates.io
• ✅ 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
./scripts/verify_policies.sh

# Individual checks
cargo build --all-features  # No warnings
cargo clippy --all-targets  # No clippy warnings
cargo nextest run           # All tests pass (550/550)

For detailed policy information, see SCIRS2_POLICY.md.

🤝 Contributing

We welcome contributions! Please see our development process:

1. Fork the repository
2. Create a feature branch
3. Run tests: cargo nextest run --all-features
4. Run clippy: cargo clippy --all-features
5. Ensure no unwrap() in production code
6. Keep files under 2000 lines (use splitrs if needed)
7. Submit a pull request

📊 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

📜 License

This project is dual-licensed under:

• MIT License
• Apache License, Version 2.0

Choose the license that best fits your use case.

🙏 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

🔗 Links

• GitHub Repository
• Issue Tracker
• API Documentation
• scirs2-io

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Built with ❤️ in Rust for performance-critical workloads