Answer
Kafka ensures ordering per partition; RabbitMQ ensures FIFO per queue.
Idempotent consumers ensure consistent processing.
Quick Answer
Kafka guarantees ordering within a partition, not across partitions. To maintain order for related messages (e.g., all events for user X), use the user ID as the partition key - all messages for that user go to the same partition. Consumers within a group each own specific partitions, so they process their partition's messages in order.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ