[Question] What happens when a processing_error occurs?

[ludgerey]

We had an issue with one queue that had multiple messages which had marked as processing_error. Some how most of the message have been replayed since the issue was solved, but we lost some messages.

Now I wonder what exactly happens if a processing error occurs? Will it become a new message in the queue? Will it just be in-flight? When will it be retried? How often will it retry? Can I configure the delay between attempts or other parameters?

[SK-CSE]

it will be send back to the queue and will be consumed again and again unless you have some DLQ setup in that queue where after retires msg will be pushed. this is my observation