Possibly a daft question

[James Green <ja...@gmail.com>]

But I'll ask it anyway...

Client(s) receiving from a topic messages 1, 2, 3 and 4. prefetch is set to
1, client to ACK. Msgs 1,2 come in and are ACK'd. Msg 3 comes in but is not
ACK'd. Does msg 4 make it through or must 3 be either ACK'd or expired
first?

I am expecting that the queue comes to a halt unless msg 3 is "dealt
with"... Something's just been noticed which causes me to ask to confirm
this... :-)

James

Re: Possibly a daft question

[Johan Edstrom <se...@gmail.com>]

It is possible that 4 made it on the "extra" message in a buffer,  but your client did not yet see it.
If you have CLIENT_ACKNOWLEDGE you will then ack all messages on the session,
to truly force ack of everything you can use AMQ's INDIVIDUAL_ACKNOWLEDGEMENT



> But I'll ask it anyway...
> 
> Client(s) receiving from a topic messages 1, 2, 3 and 4. prefetch is set to
> 1, client to ACK. Msgs 1,2 come in and are ACK'd. Msg 3 comes in but is not
> ACK'd. Does msg 4 make it through or must 3 be either ACK'd or expired
> first?
> 
> I am expecting that the queue comes to a halt unless msg 3 is "dealt
> with"... Something's just been noticed which causes me to ask to confirm
> this... :-)
> 
> James