Multi Step Processes medium
Why might you avoid using a strict FIFO (First-In-First-Out) queue for a high-throughput system unless strictly necessary?
- A FIFO queues delete messages faster.
- B FIFO queues cannot store JSON.
- C Standard queues are more expensive.
- D FIFO queues generally have lower throughput and concurrency limits because they must block to prevent out-of-order processing.
Answer: D. FIFO queues generally have lower throughput and concurrency limits because they must block to prevent out-of-order processing.
Strict ordering prevents parallelism. If Message A fails, Message B cannot be processed (Head-of-Line blocking). Standard queues allow thousands of consumers to process messages in any order.
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