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2f713753e1
signal+ fetch Replace the config push mechanism that broadcast the full config blob on a 'state' class pub/sub queue with a lightweight notify signal containing only the version number and affected config types. Processors fetch the full config via request/response from the config service when notified. This eliminates the need for the pub/sub 'state' queue class and stateful pub/sub services entirely. The config push queue moves from 'state' to 'flow' class — a simple transient signal rather than a retained message. This solves the RabbitMQ late-subscriber problem where restarting processes never received the current config because their fresh queue had no historical messages. Key changes: - ConfigPush schema: config dict replaced with types list - Subscribe-then-fetch startup with retry: processors subscribe to notify queue, fetch config via request/response, then process buffered notifies with version comparison to avoid race conditions - register_config_handler() accepts optional types parameter so handlers only fire when their config types change - Short-lived config request/response clients to avoid subscriber contention on non-persistent response topics - Config service passes affected types through put/delete/flow operations - Gateway ConfigReceiver rewritten with same notify pattern and retry loop |
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| README.md | ||