2025-09-30 10:00:00.123 [main] INFO  com.example.Application - Application starting up
2025-09-30 10:00:00.456 [main] INFO  com.example.config.ConfigLoader - Loading configuration from /etc/app/config.yml
2025-09-30 10:00:01.234 [main] INFO  com.example.db.ConnectionPool - Initializing database connection pool (size: 10)
2025-09-30 10:00:01.567 [main] INFO  com.example.db.ConnectionPool - Database connection pool initialized successfully
2025-09-30 10:00:02.890 [main] INFO  com.example.server.ServerBootstrap - Starting HTTP server on port 8080
2025-09-30 10:00:03.123 [main] INFO  com.example.server.ServerBootstrap - HTTP server started successfully
2025-09-30 10:00:03.456 [main] INFO  com.example.Application - Application startup complete in 3.33 seconds
2025-09-30 10:00:05.789 [http-thread-1] INFO  com.example.api.UserController - Processing GET /api/users request
2025-09-30 10:00:05.890 [http-thread-1] DEBUG com.example.service.UserService - Fetching all users from database
2025-09-30 10:00:06.012 [http-thread-1] DEBUG com.example.db.QueryExecutor - Executing query: SELECT * FROM users WHERE active = true
2025-09-30 10:00:06.234 [http-thread-1] INFO  com.example.api.UserController - Returned 42 users in 445ms
2025-09-30 10:00:08.567 [http-thread-2] INFO  com.example.api.AuthController - Processing POST /api/auth/login request
2025-09-30 10:00:08.678 [http-thread-2] DEBUG com.example.service.AuthService - Authenticating user: john.doe@example.com
2025-09-30 10:00:08.890 [http-thread-2] INFO  com.example.service.AuthService - User authenticated successfully: john.doe@example.com
2025-09-30 10:00:09.012 [http-thread-2] INFO  com.example.api.AuthController - Login successful for user john.doe@example.com
2025-09-30 10:00:12.345 [http-thread-3] INFO  com.example.api.ProductController - Processing GET /api/products/search?q=laptop request
2025-09-30 10:00:12.456 [http-thread-3] DEBUG com.example.service.SearchService - Searching products with query: laptop
2025-09-30 10:00:12.678 [http-thread-3] INFO  com.example.service.SearchService - Found 15 products matching 'laptop'
2025-09-30 10:00:12.789 [http-thread-3] INFO  com.example.api.ProductController - Returned 15 products in 444ms
2025-09-30 10:00:15.123 [http-thread-4] WARN  com.example.api.OrderController - Processing POST /api/orders request with large payload (2.4MB)
2025-09-30 10:00:15.234 [http-thread-4] DEBUG com.example.service.OrderService - Validating order data
2025-09-30 10:00:15.456 [http-thread-4] WARN  com.example.service.OrderService - Order contains 127 line items - this may impact performance
2025-09-30 10:00:15.789 [http-thread-4] INFO  com.example.service.OrderService - Order validation complete
2025-09-30 10:00:16.012 [http-thread-4] INFO  com.example.api.OrderController - Order created successfully: ORD-2025-001234
2025-09-30 10:00:18.345 [scheduler-1] INFO  com.example.scheduler.CacheCleanup - Running scheduled cache cleanup task
2025-09-30 10:00:18.456 [scheduler-1] DEBUG com.example.cache.CacheManager - Analyzing cache entries for expiration
2025-09-30 10:00:18.678 [scheduler-1] INFO  com.example.cache.CacheManager - Removed 234 expired cache entries
2025-09-30 10:00:18.789 [scheduler-1] INFO  com.example.scheduler.CacheCleanup - Cache cleanup completed in 444ms
2025-09-30 10:00:22.123 [http-thread-5] ERROR com.example.api.PaymentController - Error processing payment for order ORD-2025-001235
2025-09-30 10:00:22.234 [http-thread-5] ERROR com.example.service.PaymentService - Payment gateway connection timeout after 5000ms
java.net.SocketTimeoutException: Read timed out
    at java.net.SocketInputStream.socketRead0(Native Method)
    at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
    at com.example.payment.Gateway.processTransaction(Gateway.java:145)
    at com.example.service.PaymentService.processPayment(PaymentService.java:89)
2025-09-30 10:00:22.567 [http-thread-5] WARN  com.example.service.PaymentService - Retrying payment (attempt 1 of 3)
2025-09-30 10:00:27.890 [http-thread-5] ERROR com.example.service.PaymentService - Payment gateway connection timeout after 5000ms (retry 1)
2025-09-30 10:00:27.901 [http-thread-5] WARN  com.example.service.PaymentService - Retrying payment (attempt 2 of 3)
2025-09-30 10:00:33.234 [http-thread-5] ERROR com.example.service.PaymentService - Payment gateway connection timeout after 5000ms (retry 2)
2025-09-30 10:00:33.345 [http-thread-5] WARN  com.example.service.PaymentService - Retrying payment (attempt 3 of 3)
2025-09-30 10:00:38.678 [http-thread-5] ERROR com.example.service.PaymentService - Payment gateway connection timeout after 5000ms (retry 3)
2025-09-30 10:00:38.789 [http-thread-5] ERROR com.example.api.PaymentController - Payment processing failed after 3 retries
2025-09-30 10:00:42.123 [http-thread-6] INFO  com.example.api.ReportController - Processing GET /api/reports/sales/monthly request
2025-09-30 10:00:42.234 [http-thread-6] DEBUG com.example.service.ReportService - Generating monthly sales report for 2025-09
2025-09-30 10:00:42.567 [http-thread-6] DEBUG com.example.db.QueryExecutor - Executing complex aggregate query
2025-09-30 10:00:45.890 [http-thread-6] INFO  com.example.service.ReportService - Report generation complete (processed 12,345 transactions)
2025-09-30 10:00:46.012 [http-thread-6] INFO  com.example.api.ReportController - Report delivered in 3.89 seconds
2025-09-30 10:00:50.345 [http-thread-7] WARN  com.example.api.UserController - Rate limit approaching for IP 192.168.1.100 (45/50 requests per minute)
2025-09-30 10:00:51.678 [http-thread-8] ERROR com.example.api.UserController - Rate limit exceeded for IP 192.168.1.100
2025-09-30 10:00:51.789 [http-thread-8] WARN  com.example.security.RateLimiter - Blocking requests from 192.168.1.100 for 60 seconds
2025-09-30 10:01:00.123 [monitor-1] INFO  com.example.monitor.HealthCheck - Running health check
2025-09-30 10:01:00.234 [monitor-1] DEBUG com.example.monitor.HealthCheck - Database connection: OK
2025-09-30 10:01:00.345 [monitor-1] DEBUG com.example.monitor.HealthCheck - Cache service: OK
2025-09-30 10:01:00.456 [monitor-1] DEBUG com.example.monitor.HealthCheck - Message queue: OK
2025-09-30 10:01:00.567 [monitor-1] WARN  com.example.monitor.HealthCheck - Payment gateway: DEGRADED (response time: 4500ms)
2025-09-30 10:01:00.678 [monitor-1] INFO  com.example.monitor.HealthCheck - Overall health status: DEGRADED
2025-09-30 10:01:15.123 [http-thread-9] INFO  com.example.api.ExportController - Processing POST /api/data/export request
2025-09-30 10:01:15.234 [http-thread-9] DEBUG com.example.service.ExportService - Exporting 50,000 records to CSV format
2025-09-30 10:01:18.567 [http-thread-9] INFO  com.example.service.ExportService - Export file generated: exports/data-2025-09-30.csv (12.4MB)
2025-09-30 10:01:18.678 [http-thread-9] INFO  com.example.api.ExportController - Export completed in 3.55 seconds
2025-09-30 10:01:25.890 [scheduler-2] INFO  com.example.scheduler.BackupTask - Starting database backup
2025-09-30 10:01:26.012 [scheduler-2] DEBUG com.example.backup.BackupManager - Creating backup snapshot
2025-09-30 10:01:45.234 [scheduler-2] INFO  com.example.backup.BackupManager - Backup completed: backup-2025-09-30-10-01.sql.gz (245MB)
2025-09-30 10:01:45.345 [scheduler-2] INFO  com.example.scheduler.BackupTask - Database backup completed successfully
2025-09-30 10:02:00.123 [http-thread-10] ERROR com.example.api.FileController - File upload failed: maximum size exceeded
2025-09-30 10:02:00.234 [http-thread-10] WARN  com.example.api.FileController - Rejected file upload from user@example.com (size: 52MB, limit: 50MB)
2025-09-30 10:02:05.567 [http-thread-11] INFO  com.example.api.NotificationController - Sending push notification to 1,234 users
2025-09-30 10:02:05.678 [http-thread-11] DEBUG com.example.service.NotificationService - Batching notifications into 25 groups
2025-09-30 10:02:08.890 [http-thread-11] INFO  com.example.service.NotificationService - Push notifications sent successfully (98.7% delivery rate)
2025-09-30 10:02:08.901 [http-thread-11] INFO  com.example.api.NotificationController - Notification job completed in 3.33 seconds
2025-09-30 10:02:15.234 [http-thread-12] DEBUG com.example.api.SearchController - Search query optimization enabled
2025-09-30 10:02:15.345 [http-thread-12] INFO  com.example.api.SearchController - Processing GET /api/search?q=error+timeout request
2025-09-30 10:02:15.456 [http-thread-12] DEBUG com.example.service.SearchService - Searching with optimized index
2025-09-30 10:02:15.678 [http-thread-12] INFO  com.example.service.SearchService - Found 23 results in 222ms
2025-09-30 10:02:20.890 [main] INFO  com.example.Application - Received shutdown signal
2025-09-30 10:02:21.012 [main] INFO  com.example.server.ServerBootstrap - Stopping HTTP server gracefully
2025-09-30 10:02:21.234 [main] INFO  com.example.server.ServerBootstrap - Waiting for active requests to complete (5 active)
2025-09-30 10:02:23.567 [main] INFO  com.example.server.ServerBootstrap - All requests completed, server stopped
2025-09-30 10:02:23.678 [main] INFO  com.example.db.ConnectionPool - Closing database connections
2025-09-30 10:02:24.012 [main] INFO  com.example.Application - Application shutdown complete