hard20 pts · first answer countsmessage-queuesrabbitmqscaling

One hot RabbitMQ queue

One RabbitMQ queue handles 40,000 messages per second and tops out, even though the cluster has idle nodes and CPU. Why, and what helps?

A.The exchange is the bottleneck; switch to fanoutB.A queue lives on one node and core; split it across queuesC.Prefetch is too low; set it to unlimitedD.The disk is too slow; turn off persistence

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One hot RabbitMQ queue

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