CODEWITHSUNDEEP
rabbitmqamqp
syko
syko

Reputation: 3637

How dose a new consumer consume the messages produced in the past in RabbitMQ?

I am a user of Apache Kafka trying to run RabbitMQ. Kafka supports a consumer to consume any messages that are produced before. (By re-widning 'offset' in Kafka's log)

I'd like to know whether RabbitMQ has the same functionality. (A new consumer comes and requests all the messages after a certain point.)

Upvotes: 1

Views: 1322

Answers (1)

Derick Bailey
Derick Bailey

Reputation: 72858

I'd like to know whether RabbitMQ has the same functionality

It does not.

Kafka is purpose-built for that feature - an event log that allows you to travel forward from a point.

RabbitMQ is a message queue - first in, first out. Once a message is handled, it is done and gone. There is no history or log to traverse.

There is a "recent history" plugin for RabbitMQ, but this does not provide the same feature set Kafka.

https://github.com/rabbitmq/rabbitmq-recent-history-exchange#readme

It only allows you to say something like "new consumers should get the last 20 messages, before continuing to get new messages".

Kafka, on the other hand, gives you a much more extensive history and the ability to start at the beginning and move forward as needed.

Upvotes: 2

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