{"id":"pubsub-delivery-guarantees-trade-throughput-for-correctness","text":"Pub/Sub delivery guarantees form a throughput-correctness trade-off spectrum: default at-least-once delivery is throughput-unconstrained but allows duplicates, adding ordering caps throughput at 1 MBps per key with cascading redelivery risk, and exactly-once narrows further to pull-only subscriptions — each stronger guarantee progressively shrinks the operational envelope, and composing ordering with exactly-once produces the most constrained mode (sequential in-order acks, thousands-per-second throughput).","truth_value":"OUT","source":"","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{"_retracted":true},"explanation":{"steps":[{"node":"pubsub-delivery-guarantees-trade-throughput-for-correctness","truth_value":"OUT","reason":"retracted premise"}]}}