[rabbitmq-discuss] When are messages persisted to disk?

Alvaro Videla videlalvaro at gmail.com
Wed Aug 31 23:14:07 BST 2011


When does RabbitMQ persist messages to disk? 

I would assume that if the message is published with: delivery-mode = 2  then it will be persisted ALWAYS. Is that the case?

What happens with messages with delivery-mode  = 1? Are they kept in memory? Are they saved to disk to the TRANSIENT_MSG_STORE?

Is it correct to say that transient queues get their messages saved to the TRANSIENT_MSG_STORE which is wiped out if RabbitMQ restarts?

Are there situations where the message is directly delivered to the consumer without being persisted to disk?



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