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1f47ed1ea3
The message_bus performs a fair amount of work prior to hijacking requests this change ensures that if there is a situation where the server is flooded message_bus will inform client to back off for 30 seconds + random(120 secs) This back-off is ultra cheap and happens very early in the middleware. It corrects a situation where a flood to message bus could cause the app to become unresponsive MessageBus update is here to ensure message_bus gem properly respects Retry-After header and status 429. Under normal state this code should never trigger, to disable raise the value of DISCOURSE_REJECT_MESSAGE_BUS_QUEUE_SECONDS, default is to tell message bus to go away if we are queueing for 100ms or longer