DLQ and Retry Topology¶
Retry transient failures without blocking healthy traffic, and quarantine permanent failures for controlled repair.
flowchart LR J[Junior: why retries fail] --> M[Middle: retry topics] --> S[Senior: storms and ordering] --> P[Professional: topology at scale]flowchart LR Main --> Retry1 --> Retry2 --> DLQ Retry1 --> Main Retry2 --> Main| Level | Guide | You are done when | |---|---|---| | Junior | Definition and why | You can classify transient and permanent failures. | | Middle | How it works | You can route bounded delayed retries. | | Senior | Failures and mistakes | You can control storms, poison data, and order. | | Professional | Best practices and scale | You can operate DLQ growth and replay. | Practice rule: Every retry needs a budget, delay, reason, and terminal destination.