2024-01-15 08:23:14.123 INFO  [main] ApplicationStartup - Application starting up
2024-01-15 08:23:14.456 INFO  [main] DatabaseConnector - Connecting to database
2024-01-15 08:23:14.789 INFO  [main] DatabaseConnector - Database connection established
2024-01-15 08:24:01.567 INFO  [http-1] UserService - User login attempt for user_id=12345
2024-01-15 08:25:31.012 ERROR [http-3] PaymentService - Payment gateway timeout for order_id=ORD-98765
2024-01-15 08:25:31.234 WARN  [http-3] PaymentService - Retrying payment for order_id=ORD-98765
2024-01-15 08:27:00.901 ERROR [http-5] ProductService - Product not found: SKU-00000
2024-01-15 08:28:30.567 ERROR [http-7] PaymentService - Invalid card number for order_id=ORD-98766
2024-01-15 08:30:15.456 ERROR [http-8] UserService - Email validation failed for user_id=12346
2024-01-15 08:32:45.123 ERROR [http-10] PaymentService - Connection refused to payment gateway
2024-01-15 08:32:45.345 ERROR [http-10] PaymentService - Connection refused to payment gateway
2024-01-15 08:32:45.567 ERROR [http-10] PaymentService - Connection refused to payment gateway
2024-01-15 08:35:30.456 ERROR [http-12] DatabaseConnector - Query timeout: SELECT * FROM large_table
2024-01-15 08:38:15.345 ERROR [http-14] PaymentService - Insufficient funds for order_id=ORD-98767
2024-01-15 08:40:45.012 ERROR [http-15] ProductService - Image upload failed: file too large
2024-01-15 08:43:30.678 ERROR [http-17] PaymentService - Payment gateway timeout for order_id=ORD-98769
2024-01-15 08:43:33.123 ERROR [http-17] PaymentService - Payment failed after retries for order_id=ORD-98769
2024-01-15 08:56:30.012 ERROR [http-19] UserService - Authentication failed: invalid token
2024-01-15 08:59:15.678 ERROR [http-21] PaymentService - Connection refused to payment gateway
2024-01-15 09:02:00.345 ERROR [http-22] OrderService - Bulk import partially failed: 3 invalid records