: If a producer is unauthorized to write to a mission-critical topic, the feature could temporarily route those messages to a safe "quarantine" topic or local storage so no data is lost during the downtime. How to Implement This Today
The most common version of this is the TOPIC_AUTHORIZATION_FAILED error, which usually happens because a service account or user doesn't have the right permissions to write to a specific topic.
: Make sure your JAAS config (username/password/SSL) is correct, as authorization can't happen if the broker doesn't know who you are.
This feature would sit within your Producer client to ensure that errors are handled gracefully rather than just crashing your data pipeline.
: Before a message is sent, the client checks if the user has Write permissions for that topic.
While I can't build the code directly into your app, I can suggest a high-level feature design for a "Smart Authorization Guard" that would help your system handle these errors automatically. Feature Proposal: Smart Authorization Guard