trading_bot_v3/CLEANUP_IMPROVEMENTS.md

Cleanup System Improvements

Problem Identified

The cleanup system was not properly detecting when analysis was finished, causing chromium instances to accumulate and consume all RAM and CPU over time.

Root Causes

1. Browser instances not cleaned up after analysis completion
2. Session deletion happening before browser cleanup
3. Aggressive cleanup being too cautious and skipping actual cleanup
4. Missing completion signals from analysis workflow

Solutions Implemented

1. Enhanced Browser Cleanup (lib/enhanced-screenshot.ts)

• Added immediate browser cleanup after analysis completion
• Improved the cleanup() method to:
  • Close all browser sessions (AI, DIY, and main)
  • Wait for graceful shutdown
  • Force kill remaining browser processes
  • Clean up temporary files

2. Improved Analysis Workflow (lib/ai-analysis.ts)

• Added browser cleanup trigger immediately after analysis completes
• Added cleanup trigger even on analysis errors
• Cleanup now happens before session deletion to ensure browsers are closed

3. Enhanced API Cleanup (app/api/enhanced-screenshot/route.js)

• Added immediate browser cleanup after screenshot capture
• Added cleanup trigger in error handling
• Cleanup now runs regardless of environment (not just development)

4. Aggressive Cleanup Improvements (lib/aggressive-cleanup.ts)

• runPostAnalysisCleanup() now ignores session status since analysis is complete
• More aggressive process termination strategy:
  • Try graceful shutdown (SIGTERM) first
  • Wait 5 seconds for graceful shutdown
  • Force kill (SIGKILL) stubborn processes
• Enhanced temp file and shared memory cleanup
• Force clear stuck progress sessions

5. TradingView Automation Cleanup (lib/tradingview-automation.ts)

• Improved forceCleanup() method to:
  • Close all pages individually first
  • Close browser gracefully
  • Force kill browser process if graceful close fails

6. New Monitoring Tools

• Process Monitor API: /api/system/processes
  • GET: Shows current browser processes and active sessions
  • POST: Triggers manual aggressive cleanup
• Test Script: test-cleanup-improvements.js
  • Validates the complete cleanup workflow
  • Monitors processes before/after analysis
  • Tests manual cleanup triggers

Key Changes Summary

Cleanup Trigger Points

1. After analysis completion (success or error)
2. After screenshot capture completion
3. On API request completion (success or error)
4. Manual trigger via /api/system/processes

Cleanup Strategy

1. Immediate: Browser instances closed right after analysis
2. Graceful: SIGTERM first, wait 5 seconds
3. Forceful: SIGKILL for stubborn processes
4. Comprehensive: Temp files, shared memory, stuck sessions

Detection Improvements

• Post-analysis cleanup ignores session status (since analysis is done)
• Better process age filtering in regular cleanup
• Enhanced process information logging for debugging

Usage

Monitor Current Processes

curl http://localhost:3000/api/system/processes

Trigger Manual Cleanup

curl -X POST http://localhost:3000/api/system/processes

Test Complete Workflow

node test-cleanup-improvements.js

Expected Results

• No accumulating browser processes after analysis completion
• RAM usage stays stable over multiple analysis cycles
• CPU usage returns to baseline after each analysis
• Faster subsequent analysis due to proper cleanup

Monitoring Commands

# Check browser processes
ps aux | grep -E "(chromium|chrome)" | grep -v grep

# Monitor memory usage
free -h

# Check temp directories
ls -la /tmp/puppeteer_dev_chrome_profile-* 2>/dev/null || echo "No temp profiles"
ls -la /dev/shm/.org.chromium.* 2>/dev/null || echo "No shared memory files"

The system should now properly clean up all browser instances and associated resources after each analysis cycle, preventing the RAM and CPU accumulation issues.