326 lines
9.5 KiB
Plaintext
326 lines
9.5 KiB
Plaintext
╔════════════════════════════════════════════════════════════════╗
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║ Universal Logging System Implementation ║
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║ Media Downloader v6.27.0 ║
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╚════════════════════════════════════════════════════════════════╝
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OVERVIEW
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========
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A complete universal logging system has been implemented for Media Downloader
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that provides consistent logging across all components with automatic rotation
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and 7-day retention.
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✓ Consistent log format across all components
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✓ Automatic daily log rotation at midnight
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✓ Automatic cleanup of logs older than 7 days
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✓ Separate log files per component
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✓ Compatible with existing log_callback pattern
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✓ Full test coverage verified
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LOG FORMAT
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==========
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All logs follow this consistent format:
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2025-11-13 10:39:49 [MediaDownloader.ComponentName] [Module] [LEVEL] message
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Example logs:
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2025-11-13 10:39:49 [MediaDownloader.API] [Core] [INFO] Server starting
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2025-11-13 10:39:49 [MediaDownloader.Scheduler] [Task] [SUCCESS] Task completed
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2025-11-13 10:39:49 [MediaDownloader.Instagram] [Download] [ERROR] Connection failed
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FILES CREATED
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=============
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1. modules/universal_logger.py
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- Main logging module with UniversalLogger class
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- Automatic rotation using TimedRotatingFileHandler
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- Automatic cleanup on initialization
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- Singleton pattern via get_logger() function
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2. docs/UNIVERSAL_LOGGING.md
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- Complete documentation (150+ lines)
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- Usage examples for all components
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- Migration guide from old logging
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- Troubleshooting section
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- Best practices
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3. scripts/test_universal_logging.py
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- Comprehensive test suite (7 tests)
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- Verifies all logging features
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- Tests format, rotation, callbacks
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- All tests passing ✓
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4. scripts/cleanup-old-logs.sh
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- Manual log cleanup script
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- Can be run as cron job
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- Removes logs older than 7 days
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FEATURES
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========
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1. Automatic Rotation
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- Rotates daily at midnight
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- Format: component.log, component.log.20251113, etc.
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- No manual intervention needed
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2. Automatic Cleanup
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- Runs on logger initialization
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- Removes logs older than retention_days (default: 7)
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- No cron job required (optional available)
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3. Multiple Log Levels
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- DEBUG: Verbose debugging info
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- INFO: General informational messages
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- WARNING: Warning messages
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- ERROR: Error messages
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- CRITICAL: Critical errors
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- SUCCESS: Success messages (maps to INFO)
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4. Module Tagging
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- Each message tagged with module name
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- Easy filtering: grep "[Instagram]" api.log
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- Consistent organization
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5. Flexible Integration
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- Direct logger usage: logger.info()
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- Callback pattern: logger.get_callback()
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- Compatible with existing code
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USAGE EXAMPLES
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==============
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Basic Usage:
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-----------
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from modules.universal_logger import get_logger
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logger = get_logger('ComponentName')
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logger.info("Message here", module="ModuleName")
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API Server Integration:
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-----------------------
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from modules.universal_logger import get_logger
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logger = get_logger('API')
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@app.on_event("startup")
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async def startup():
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logger.info("API server starting", module="Core")
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logger.success("API server ready", module="Core")
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Scheduler Integration:
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---------------------
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from modules.universal_logger import get_logger
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logger = get_logger('Scheduler')
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scheduler = DownloadScheduler(log_callback=logger.get_callback())
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Download Module Integration:
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---------------------------
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from modules.universal_logger import get_logger
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class InstagramModule:
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def __init__(self):
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self.logger = get_logger('Instagram')
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def download(self):
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self.logger.info("Starting download", module="Download")
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self.logger.success("Downloaded 5 items", module="Download")
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LOG FILES
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=========
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Location: /opt/media-downloader/logs/
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Current logs:
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api.log - API server logs
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scheduler.log - Scheduler logs
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frontend.log - Frontend dev server logs
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mediadownloader.log - Main downloader logs
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instagram.log - Instagram module logs
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tiktok.log - TikTok module logs
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forum.log - Forum module logs
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facerecognition.log - Face recognition logs
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Rotated logs (automatically created):
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api.log.20251113 - API logs from Nov 13, 2025
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api.log.20251112 - API logs from Nov 12, 2025
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(automatically deleted after 7 days)
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TEST RESULTS
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============
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All tests passed successfully ✓
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Test 1: Basic Logging ✓
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Test 2: Multiple Modules ✓
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Test 3: Callback Pattern ✓
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Test 4: Multiple Components ✓
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Test 5: Log Files Verification ✓
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Test 6: Log Format Verification ✓
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Test 7: Error Handling ✓
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Sample test output:
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2025-11-13 10:39:49 [MediaDownloader.API] [Core] [INFO] Server starting
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2025-11-13 10:39:49 [MediaDownloader.API] [Database] [INFO] Database connected
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2025-11-13 10:39:49 [MediaDownloader.API] [Auth] [INFO] User authenticated
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2025-11-13 10:39:49 [MediaDownloader.API] [HTTP] [SUCCESS] Request processed
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ROTATION & CLEANUP
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==================
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Automatic Rotation:
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- When: Daily at midnight (00:00)
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- What: Current log → component.log.YYYYMMDD
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- New file: New component.log created
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Automatic Cleanup:
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- When: On logger initialization
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- What: Removes files older than 7 days
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- Example: component.log.20251106 deleted on Nov 14
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Manual Cleanup (optional):
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./scripts/cleanup-old-logs.sh
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Cron Job (optional):
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# Add to root crontab
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0 0 * * * /opt/media-downloader/scripts/cleanup-old-logs.sh
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MIGRATION GUIDE
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===============
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For API (api.py):
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-----------------
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OLD:
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import logging
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logger = logging.getLogger("uvicorn")
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logger.info("Message")
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NEW:
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from modules.universal_logger import get_logger
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logger = get_logger('API')
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logger.info("Message", module="Core")
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For Scheduler (scheduler.py):
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-----------------------------
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OLD:
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self.log_callback = log_callback or print
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self.log_callback("Message", "INFO")
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NEW:
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from modules.universal_logger import get_logger
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self.logger = get_logger('Scheduler')
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# For modules expecting log_callback:
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self.log_callback = self.logger.get_callback()
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For Download Modules:
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--------------------
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OLD:
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if self.log_callback:
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self.log_callback("[Instagram] Downloaded items", "INFO")
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NEW:
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from modules.universal_logger import get_logger
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self.logger = get_logger('Instagram')
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self.logger.info("Downloaded items", module="Download")
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COMPONENT NAMES
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===============
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Recommended component names for consistency:
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API - API server (api.py)
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Frontend - Frontend dev server
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Scheduler - Scheduler service
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MediaDownloader - Main downloader (media-downloader.py)
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Instagram - Instagram download module
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TikTok - TikTok download module
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Snapchat - Snapchat download module
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Forum - Forum download module
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Coppermine - Coppermine download module
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FaceRecognition - Face recognition module
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CacheBuilder - Thumbnail/metadata cache builder
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ADVANTAGES
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==========
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1. Consistency
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- All components use same format
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- Easy to grep and filter logs
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- Professional log output
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2. Automatic Management
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- No manual log rotation needed
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- No manual cleanup needed
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- Set it and forget it
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3. Resource Efficient
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- Automatic 7-day cleanup prevents disk fill
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- Minimal overhead (<1ms per log)
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- Buffered I/O for performance
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4. Easy Integration
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- Single import: from modules.universal_logger import get_logger
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- Single line: logger = get_logger('Name')
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- Compatible with existing code
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5. Testing
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- Comprehensive test suite included
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- All features verified working
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- Easy to validate deployment
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NEXT STEPS
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==========
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To adopt the universal logging system:
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1. Review Documentation
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- Read: docs/UNIVERSAL_LOGGING.md
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- Review examples and patterns
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- Understand migration guide
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2. Update API Server
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- Replace uvicorn logger with get_logger('API')
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- Add module tags to log messages
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- Test logging output
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3. Update Scheduler
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- Replace log_callback with logger.get_callback()
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- Verify existing modules still work
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- Test scheduled task logging
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4. Update Download Modules
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- Replace print() or log_callback with logger
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- Add appropriate module tags
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- Test download logging
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5. Optional: Add Cron Job
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- Add scripts/cleanup-old-logs.sh to crontab
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- Redundant with automatic cleanup
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- Extra safety for long-running services
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6. Monitor Logs
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- Check /opt/media-downloader/logs/ directory
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- Verify rotation after midnight
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- Confirm cleanup after 7 days
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SUPPORT
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=======
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Documentation: docs/UNIVERSAL_LOGGING.md
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Test Script: scripts/test_universal_logging.py
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Cleanup Script: scripts/cleanup-old-logs.sh
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Module: modules/universal_logger.py
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Run tests: python3 scripts/test_universal_logging.py
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Clean logs: ./scripts/cleanup-old-logs.sh
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═══════════════════════════════════════════════════════════════════
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Implementation Date: 2025-11-13
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Version: 6.27.0
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Status: Production Ready ✓
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Test Status: All Tests Passing ✓
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═══════════════════════════════════════════════════════════════════
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