Ankur Mhatre
e1f8aa7402
Kafka, RabbitMQ and Pulsar measured side by side on ordering, replay and consumer scaling by driving the three client libraries directly, plus an operational-footprint measurement of each broker's own distribution. Nine tests, three brokers started without Docker, and every number in the documentation regenerated by scripts/run-all.sh.
13 lines
516 B
Plaintext
13 lines
516 B
Plaintext
== RabbitMQ: there is nothing to replay ==
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first drain of the queue : 12 messages
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second drain of the queue : 0 messages
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queue depth afterwards : 0
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Acknowledging a message deletes it. The broker is a router with buffers,
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not a log: there is no offset to rewind and no second reader that can see
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what the first one consumed. Reading the same message twice means
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arranging it in advance -- a second queue bound to the same exchange, or a
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copy written somewhere else -- and it cannot be arranged after the fact.
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