Two critical fixes for successful pipeline execution: 1. GitLab CI YAML Syntax Fix (.gitlab-ci.yml:84-86) - Wrapped echo commands containing colons in single quotes - Root cause: YAML parser interprets `"text: value"` as key-value pairs - Solution: Single quotes force literal string interpretation - Impact: Enables Docker build pipeline execution 2. Trading Service Compilation Fix (trading_service/src/services/enhanced_ml.rs:1328-1348) - Added missing early stopping fields to PPOConfig initialization - Fields: early_stopping_enabled, early_stopping_patience, early_stopping_min_delta, early_stopping_min_epochs - Values: Disabled by default for paper trading (early_stopping_enabled: false) - Impact: Resolves pre-push hook compilation error Technical Details: - YAML Issue: Colons followed by spaces trigger mapping syntax parsing - Single quotes preserve shell variable expansion while forcing literal YAML strings - Early stopping config matches PPOConfig struct updates from Wave D - Default values: patience=5, min_delta=0.001, min_epochs=10 Validated: - ✅ YAML syntax validated with PyYAML - ✅ trading_service compilation successful (cargo check) - ✅ Ready for GitLab CI/CD pipeline execution 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
Backtesting Service
Overview
The backtesting_service offers an independent and isolated environment for rigorously testing and validating trading strategies against historical market data. It provides a robust platform for simulating trading performance, analyzing strategy efficacy, and generating comprehensive performance reports before live deployment.
Features
- Independent Backtesting Service: Operates autonomously, allowing for parallel and isolated strategy evaluations.
- gRPC API for Backtest Execution: Exposes a clear API for submitting and managing backtesting jobs.
- Strategy Testing and Validation: Enables comprehensive testing of various trading strategies under different market conditions.
- Performance Reporting: Generates detailed reports including metrics like P&L, Sharpe ratio, drawdown, and win rate.
- Data Replay Engine: Accurately replays historical market data, simulating real-world order book dynamics and trade execution.
- Results Persistence: Stores backtesting results and reports for historical analysis and comparison.
gRPC API
The backtesting_service exposes a gRPC API for initiating and retrieving backtest results. Key endpoints include:
RunBacktest- Submit backtest configuration and strategyGetBacktestResults- Retrieve results for completed backtestsListAvailableStrategies- List registered strategiesGetBacktestReport- Get detailed performance report
Running the service
To run the backtesting_service binary:
cargo run --bin backtesting_service
Data Requirements
The service requires historical market data in Parquet format:
- Data should be stored in the configured data directory
- Supports tick data, order book snapshots, and OHLCV candles
- Data must include instrument, timestamp, and price/quantity fields
Testing
To run the tests for the backtesting_service crate:
cargo test --package backtesting_service
Documentation
Comprehensive API documentation is available at docs.rs/backtesting_service.