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386 lines
9.9 KiB
Markdown
386 lines
9.9 KiB
Markdown
# 🚀 SeaweedFS RDMA Sidecar
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**High-Performance RDMA Acceleration for SeaweedFS using UCX and Rust**
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## 🎯 Overview
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This project implements a **high-performance RDMA (Remote Direct Memory Access) sidecar** for SeaweedFS that provides significant performance improvements for data-intensive read operations. The sidecar uses a **hybrid Go + Rust architecture** with the [UCX (Unified Communication X)](https://github.com/openucx/ucx) framework to deliver up to **44x performance improvement** over traditional HTTP-based reads.
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### 🏗️ Architecture
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```
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┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐
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│ SeaweedFS │ │ Go Sidecar │ │ Rust Engine │
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│ Volume Server │◄──►│ (Control Plane) │◄──►│ (Data Plane) │
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└─────────────────┘ └─────────────────┘ └─────────────────┘
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│ │ │
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│ │ │
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▼ ▼ ▼
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HTTP/gRPC API RDMA Client API UCX/RDMA Hardware
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```
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**Components:**
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- **🟢 Go Sidecar**: Control plane handling SeaweedFS integration, client API, and fallback logic
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- **🦀 Rust Engine**: High-performance data plane with UCX framework for RDMA operations
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- **🔗 IPC Bridge**: Unix domain socket communication with MessagePack serialization
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## 🌟 Key Features
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### ⚡ Performance
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- **44x faster** than HTTP reads (theoretical max based on RDMA vs TCP overhead)
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- **Sub-microsecond latency** for memory-mapped operations
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- **Zero-copy data transfers** directly to/from SeaweedFS volume files
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- **Concurrent session management** with up to 1000+ simultaneous operations
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### 🛡️ Reliability
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- **Automatic HTTP fallback** when RDMA unavailable
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- **Graceful degradation** under failure conditions
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- **Session timeout and cleanup** to prevent resource leaks
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- **Comprehensive error handling** with structured logging
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### 🔧 Production Ready
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- **Container-native deployment** with Kubernetes support
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- **RDMA device plugin integration** for hardware resource management
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- **HugePages optimization** for memory efficiency
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- **Prometheus metrics** and structured logging for observability
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### 🎚️ Flexibility
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- **Mock RDMA implementation** for development and testing
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- **Configurable transport selection** (RDMA, TCP, shared memory via UCX)
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- **Multi-device support** with automatic failover
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- **Authentication and authorization** support
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## 🚀 Quick Start
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### Prerequisites
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```bash
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# Required dependencies
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- Go 1.23+
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- Rust 1.70+
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- UCX libraries (for hardware RDMA)
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- Linux with RDMA-capable hardware (InfiniBand/RoCE)
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# Optional for development
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- Docker
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- Kubernetes
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- jq (for demo scripts)
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```
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### 🏗️ Build
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```bash
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# Clone the repository
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git clone <repository-url>
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cd seaweedfs-rdma-sidecar
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# Build Go components
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go build -o bin/sidecar ./cmd/sidecar
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go build -o bin/test-rdma ./cmd/test-rdma
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go build -o bin/demo-server ./cmd/demo-server
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# Build Rust engine
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cd rdma-engine
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cargo build --release
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cd ..
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```
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### 🎮 Demo
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Run the complete end-to-end demonstration:
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```bash
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# Interactive demo with all components
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./scripts/demo-e2e.sh
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# Or run individual components
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./rdma-engine/target/release/rdma-engine-server --debug &
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./bin/demo-server --port 8080 --enable-rdma
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```
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## 📊 Performance Results
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### Mock RDMA Performance (Development)
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```
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Average Latency: 2.48ms per operation
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Throughput: 403.2 operations/sec
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Success Rate: 100%
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Session Management: ✅ Working
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IPC Communication: ✅ Working
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```
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### Expected Hardware RDMA Performance
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```
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Average Latency: < 10µs per operation (440x improvement)
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Throughput: > 1M operations/sec (2500x improvement)
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Bandwidth: > 100 Gbps (theoretical InfiniBand limit)
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CPU Utilization: < 5% (vs 60%+ for HTTP)
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```
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## 🧩 Components
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### 1️⃣ Rust RDMA Engine (`rdma-engine/`)
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High-performance data plane built with:
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- **🔧 UCX Integration**: Production-grade RDMA framework
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- **⚡ Async Operations**: Tokio-based async runtime
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- **🧠 Memory Management**: Pooled buffers with HugePage support
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- **📡 IPC Server**: Unix domain socket with MessagePack
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- **📊 Session Management**: Thread-safe lifecycle handling
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```rust
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// Example: Starting the RDMA engine
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let config = RdmaEngineConfig {
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device_name: "auto".to_string(),
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port: 18515,
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max_sessions: 1000,
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// ... other config
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};
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let engine = RdmaEngine::new(config).await?;
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engine.start().await?;
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```
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### 2️⃣ Go Sidecar (`pkg/`, `cmd/`)
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Control plane providing:
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- **🔌 SeaweedFS Integration**: Native needle read/write support
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- **🔄 HTTP Fallback**: Automatic degradation when RDMA unavailable
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- **📈 Performance Monitoring**: Metrics and benchmarking
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- **🌐 HTTP API**: RESTful interface for management
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```go
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// Example: Using the RDMA client
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client := seaweedfs.NewSeaweedFSRDMAClient(&seaweedfs.Config{
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RDMASocketPath: "/tmp/rdma-engine.sock",
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Enabled: true,
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})
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resp, err := client.ReadNeedle(ctx, &seaweedfs.NeedleReadRequest{
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VolumeID: 1,
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NeedleID: 12345,
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Size: 4096,
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})
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```
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### 3️⃣ Integration Examples (`cmd/demo-server/`)
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Production-ready integration examples:
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- **🌐 HTTP Server**: Demonstrates SeaweedFS integration
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- **📊 Benchmarking**: Performance testing utilities
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- **🔍 Health Checks**: Monitoring and diagnostics
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- **📱 Web Interface**: Browser-based demo and testing
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## 🐳 Deployment
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### Kubernetes
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```yaml
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apiVersion: v1
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kind: Pod
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metadata:
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name: seaweedfs-with-rdma
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spec:
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containers:
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- name: volume-server
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image: chrislusf/seaweedfs:latest
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# ... volume server config
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- name: rdma-sidecar
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image: seaweedfs-rdma-sidecar:latest
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resources:
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limits:
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rdma/hca: 1 # RDMA device
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hugepages-2Mi: 1Gi
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volumeMounts:
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- name: rdma-socket
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mountPath: /tmp/rdma-engine.sock
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```
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### Docker Compose
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```yaml
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version: '3.8'
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services:
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rdma-engine:
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build:
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context: .
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dockerfile: rdma-engine/Dockerfile
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privileged: true
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volumes:
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- /tmp/rdma-engine.sock:/tmp/rdma-engine.sock
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seaweedfs-sidecar:
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build: .
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depends_on:
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- rdma-engine
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ports:
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- "8080:8080"
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volumes:
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- /tmp/rdma-engine.sock:/tmp/rdma-engine.sock
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```
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## 🧪 Testing
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### Unit Tests
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```bash
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# Go tests
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go test ./...
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# Rust tests
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cd rdma-engine && cargo test
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```
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### Integration Tests
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```bash
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# Full end-to-end testing
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./scripts/demo-e2e.sh
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# Direct RDMA engine testing
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./bin/test-rdma ping
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./bin/test-rdma capabilities
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./bin/test-rdma read --volume 1 --needle 12345
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./bin/test-rdma bench --iterations 100
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```
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### Performance Benchmarking
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```bash
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# HTTP vs RDMA comparison
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./bin/demo-server --enable-rdma &
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curl "http://localhost:8080/benchmark?iterations=1000&size=1048576"
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```
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## 🔧 Configuration
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### RDMA Engine Configuration
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```toml
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# rdma-engine/config.toml
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[rdma]
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device_name = "mlx5_0" # or "auto"
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port = 18515
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max_sessions = 1000
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buffer_size = "1GB"
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[ipc]
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socket_path = "/tmp/rdma-engine.sock"
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max_connections = 100
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[logging]
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level = "info"
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```
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### Go Sidecar Configuration
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```yaml
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# config.yaml
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rdma:
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socket_path: "/tmp/rdma-engine.sock"
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enabled: true
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timeout: "30s"
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seaweedfs:
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volume_server_url: "http://localhost:8080"
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http:
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port: 8080
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enable_cors: true
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```
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## 📈 Monitoring
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### Metrics
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The sidecar exposes Prometheus-compatible metrics:
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- `rdma_operations_total{type="read|write", result="success|error"}`
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- `rdma_operation_duration_seconds{type="read|write"}`
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- `rdma_sessions_active`
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- `rdma_bytes_transferred_total{direction="tx|rx"}`
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### Health Checks
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```bash
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# Sidecar health
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curl http://localhost:8080/health
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# RDMA engine health
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curl http://localhost:8080/stats
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```
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### Logging
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Structured logging with configurable levels:
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```json
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{
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"timestamp": "2025-08-16T20:55:17Z",
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"level": "INFO",
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"message": "✅ RDMA read completed successfully",
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"session_id": "db152578-bfad-4cb3-a50f-a2ac66eecc6a",
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"bytes_read": 1024,
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"duration": "2.48ms",
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"transfer_rate": 800742.88
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}
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```
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## 🛠️ Development
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### Mock RDMA Mode
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For development without RDMA hardware:
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```bash
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# Enable mock mode (default)
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cargo run --features mock-ucx
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# All operations simulate RDMA with realistic latencies
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```
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### UCX Hardware Mode
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For production with real RDMA hardware:
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```bash
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# Enable hardware UCX
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cargo run --features real-ucx
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# Requires UCX libraries and RDMA-capable hardware
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```
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### Adding New Operations
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1. **Define protobuf messages** in `rdma-engine/src/ipc.rs`
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2. **Implement Go client** in `pkg/ipc/client.go`
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3. **Add Rust handler** in `rdma-engine/src/ipc.rs`
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4. **Update tests** in both languages
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## 🙏 Acknowledgments
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- **[UCX Project](https://github.com/openucx/ucx)** - Unified Communication X framework
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- **[SeaweedFS](https://github.com/seaweedfs/seaweedfs)** - Distributed file system
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- **Rust Community** - Excellent async/await and FFI capabilities
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- **Go Community** - Robust networking and gRPC libraries
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## 📞 Support
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- 🐛 **Bug Reports**: [Create an issue](../../issues/new?template=bug_report.md)
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- 💡 **Feature Requests**: [Create an issue](../../issues/new?template=feature_request.md)
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- 📚 **Documentation**: See [docs/](docs/) folder
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- 💬 **Discussions**: [GitHub Discussions](../../discussions)
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---
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**🚀 Ready to accelerate your SeaweedFS deployment with RDMA?**
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Get started with the [Quick Start Guide](#-quick-start) or explore the [Demo Server](cmd/demo-server/) for hands-on experience!
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