What if a RabbitMQ message kills multiple worker?

Question

I am a noob on RabbitMQ. I started using it and it's serving my purpose so far. In my settings there should be around 10 consumer. I am wondering to know If a message kills multiple consumer/worker how I check that and drop that message because definitely I don't want all my worker fails because of a corrupted message. Any advice is greatly appreciated and just to update that I am using Java

Answer 1

you need to have some level of error handling in your code to catch so-called "poison" messages - messages that cause problems and can't be processed.

to handle this appropriately, you'll want to set up a Dead Letter Exchange ("dlx") for your queue. this exchange will be used to catch the poison messages, when your code recognizes the bad message.

in your error handling code, when you get a poison message you will want to reject the message. this will tell RabbitMQ to re-route the message through the dlx.

your dlx should have routing setup to send the poison message to a queue where an alert can be sent to you, based on a message showing up in this queue.