{"id":"offset-tracking-per-partition","text":"Consumer tracks offsets as a `dict[tuple[str, int], int]` mapping `(topic, partition)` to offset, so commit granularity is per-partition, not per-message","truth_value":"IN","source":"entries/2026/05/29/topic-kafka-consumer-offset-semantics.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"offset-tracking-per-partition","truth_value":"IN","reason":"premise"}]}}