2024-01-15T08:30:12.456Z [INFO] Application server starting on port 8080
2024-01-15T08:30:12.789Z [INFO] Loading configuration from /etc/app/config.yaml
2024-01-15T08:30:13.012Z [INFO] Database connection pool initialized: host=db-primary.prod.internal, port=5432, pool_size=20
2024-01-15T08:30:13.234Z [INFO] Redis cache connection established: host=cache-001.prod.internal:6379
2024-01-15T08:30:13.567Z [INFO] Authentication middleware configured with JWT algorithm HS256
2024-01-15T08:30:14.001Z [INFO] Registered 47 API routes across 12 controllers
2024-01-15T08:30:14.234Z [INFO] Health check endpoint available at /api/v1/health
2024-01-15T08:30:14.567Z [INFO] Application server ready to accept connections

2024-01-15T09:15:23.123Z [INFO] Incoming request: GET /api/v1/users/profile - RequestID: req-a1b2c3d4-e5f6-7890-abcd-ef1234567890
2024-01-15T09:15:23.456Z [DEBUG] Validating JWT token for user: john.doe@example.com
2024-01-15T09:15:23.567Z [DEBUG] Token validated successfully. User ID: usr_42x9kp, Roles: [admin, editor]
2024-01-15T09:15:23.789Z [INFO] Response: 200 OK - RequestID: req-a1b2c3d4-e5f6-7890-abcd-ef1234567890 - Duration: 666ms

2024-01-15T09:22:45.012Z [WARN] Rate limit approaching for IP 192.168.1.100: 85/100 requests in current window
2024-01-15T09:22:45.234Z [INFO] Incoming request: POST /api/v1/documents/upload - RequestID: req-f7e8d9c0-b1a2-3456-7890-abcdef123456
2024-01-15T09:22:46.567Z [INFO] File uploaded successfully: document_2024_report.pdf (2.3 MB) - Storage: s3://prod-documents/uploads/2024/01/
2024-01-15T09:22:46.789Z [INFO] Response: 201 Created - RequestID: req-f7e8d9c0-b1a2-3456-7890-abcdef123456 - Duration: 1777ms

2024-01-15T10:05:12.345Z [ERROR] Database query timeout: SELECT * FROM transactions WHERE user_id = 'usr_42x9kp' AND created_at > '2024-01-01' - Timeout: 30000ms
2024-01-15T10:05:12.456Z [ERROR] Stack trace:
  at DatabasePool.query (src/database/pool.ts:156)
  at TransactionService.getUserTransactions (src/services/transaction.ts:89)
  at TransactionController.list (src/controllers/transaction.ts:34)
  at Router.handle (node_modules/express/lib/router/index.js:275)
2024-01-15T10:05:12.567Z [ERROR] Returning 504 Gateway Timeout - RequestID: req-11223344-5566-7788-99aa-bbccddeeff00

2024-01-15T10:30:00.000Z [INFO] Scheduled job started: daily-report-generation
2024-01-15T10:30:15.234Z [INFO] Report generation complete: processed 15,847 records in 15.234 seconds
2024-01-15T10:30:15.456Z [INFO] Report saved to: s3://prod-reports/daily/2024-01-15/summary.json
2024-01-15T10:30:15.567Z [INFO] Email notification sent to: admin@example.com, ops@example.com

2024-01-15T11:45:33.890Z [WARN] Memory usage at 78%: heap_used=1.2GB, heap_total=1.5GB, rss=1.8GB
2024-01-15T11:45:34.012Z [INFO] Triggering garbage collection cycle
2024-01-15T11:45:35.234Z [INFO] GC complete: freed 312MB, heap_used=0.9GB

2024-01-15T14:20:00.123Z [INFO] Deployment pipeline triggered: version=v2.4.7, commit=abc123def456789, branch=main
2024-01-15T14:20:30.456Z [INFO] Health check passed after deployment: all 47 routes responding
2024-01-15T14:20:30.789Z [INFO] Deployment complete: v2.4.7 is now live

2024-01-15T16:55:12.345Z [INFO] Daily statistics: total_requests=45,892, avg_response_time=234ms, error_rate=0.12%
2024-01-15T16:55:12.456Z [INFO] Top endpoints by traffic:
  1. GET /api/v1/users/profile - 12,456 requests
  2. POST /api/v1/documents/search - 8,234 requests
  3. GET /api/v1/notifications - 7,891 requests
  4. PUT /api/v1/settings - 3,456 requests
  5. DELETE /api/v1/cache/invalidate - 1,234 requests
2024-01-15T16:55:12.567Z [INFO] Application metrics exported to Prometheus endpoint
