Java Bean Bag

 👋 Hello Team! Today I want to share an important lesson we discovered in production  👉 Default timeouts matter! Especially when you’re working with RabbitMQ and long‑running consumers. 🕒 What’s the default timeout in RabbitMQ? ✅ By default, RabbitMQ expects a message acknowledgment from the consumer within 30 minutes . ✅ If no ACK is received in that window, RabbitMQ assumes: “This consumer might have failed!” …and re‑queues the message to another consumer. ⚡ Why did this become a problem for us? Our consumers trigger shell scripts that sometimes run for 2–3 hours . 🛠️ In development, our test scripts were small (20–25 mins), so we never hit the 30‑minute limit. 🚀 But in production: After 30 minutes, RabbitMQ re‑delivered the same message. That led to multiple consumers processing the same job . A single 1‑hour job started running 5 to 10 times in parallel! 😱 🔎 Root Cause Analysis (RCA) ✔️ RabbitMQ was working as designed —but our proc...