The Code Never Lies

At two o'clock in the morning on Double Eleven, the city was fast asleep, but a single light burned in my rented apartment. I sat at the computer, eyes fixed on the screen, fingers occasionally gliding over the mouse as I verified the day's pre-sale data. The transaction flow on the screen refreshed every second, dozens of new order details flashing by rapidly, casting flickering shadows deep in my eyes. My phone suddenly vibrated, and the words "Company Urgent Call" on the screen glared sharply. My heart tightened; I immediately grabbed the phone and pressed the answer button. "Simon Lynn! It's bad! Melody's payment server crashed! All the data is corrupted, and many order numbers are duplicated!" On the other end, Amy from the Technical Department's voice trembled with tears, speaking so fast it was almost impossible to grasp the key points. I took a deep breath, forcing myself to calm down, and said into the phone, "Don't panic. Let Melody take the call. Also, send me the server log immediately, as fast as possible." Within seconds, Melody's sobs came through the receiver: "Simon, if the data can't be recovered, I'm finished. The company will definitely hold me responsible..." As I launched the remote assistance software, I quickly scanned the payment system architecture diagram on the computer and asked, "Before the server crashed, did you change any system parameters or update any plugins?" "No! Absolutely not! It just suddenly threw an error!" Melody's voice was filled with panic. I could even hear her frantic keystrokes over the phone as the screen's interface became increasingly chaotic. "Don't touch the keyboard!" I immediately ordered, "Initiate emergency mode at once. Freeze all new payment requests; we cannot allow the data chaos to worsen." Following my instructions, Melody operated the system. Before long, the glaring red error alerts on the screen finally disappeared. I quickly traced the problem and soon identified that the crash was caused by an overloaded cache node. I then started writing a script for a temporary fix. Half an hour later, the script was ready. I said into the phone, "Now execute the script step by step. First, activate the backup cache nodes, and during data synchronization, verify each step is error-free before proceeding." I transferred the script file and kept my eyes locked on the remote assistance interface. Three minutes later, the red error message on the screen had completely switched to green text, indicating normal operation. Melody's cheer came through instantly: "It's fixed! Everything's back to normal! Simon, thank you so much!" "From now on, export a log backup every hour. If there's any more trouble, call me immediately." I reminded her. By the time I hung up, it was already half-past three in the morning. I carefully reviewed the server log once more, confirmed there were no hidden issues, and only then shut down my computer. At that time, I had no idea that a nightmare was about to descend on me.