[rabbitmq-discuss] ewbie question - need modified fanaout/publish/subscribe behavior

[scott taggart]

the rabbitmq tutorial 3 for python talks about the publish/subscribe 
(fanout) model. 

I have this working for multiple subscribers but I need something slightly 
different. 

The current model says that any subscriber sees only the messages AFTER it 
subscribes (i.e., creates the subscriber Q) and this is the behavior I 
see.  I need to be able to see all messages ever sent to the exchange.  To 
be very clear, the current behavior is that if a publisher produces 
messages 1, 2, 3 and C1 starts consuming after 2 but before 3, the consumer 
only sees 3.  Similarly, if C2 starts after message 3, it never sees 1, 2 
or 3.  I need C1 & C2 to see 1, 2, & 3 regardless of where they start in 
the publishing sequence. 

How can I create the Q after a fanout exchange is created so that that Q 
sees all messages sent to an exchange to that point, not just post-Q 
creation?  If it takes a different exchange or Q model, please let me know. 

Your help is greatly appreciated. 


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