[rabbitmq-discuss] [rabbitmq-erlang-client] Missing 1 queue message after nodedown message from another node.
rtrlists at googlemail.com
Mon Mar 12 08:37:09 GMT 2012
On Fri, Mar 9, 2012 at 6:58 PM, Abhinav Jha <virolord at gmail.com> wrote:
> I have a small OTP App ( say node A), that subscribes to a RabbitMQ queue,
> and also talks to another erlang node in another process ( node B ).
> Now, sometimes the process hosting node B crashes for some reason, and my
> node A gets a 'nodedown' message. Up till this point, consumption from
> RabbitMQ works perfectly.
> However, after my handle_info has finished processing the nodedown, if I
> publish a message to the RabbitMQ queue, my app doesn't consume it.
> However, all messages published after this one are consumed properly and
> processed. However that 1 message remains in a message_unacknowledged state
> in the queue, even though my handle_info refuses to have ever consumed it !
> Is this a known issue in the client ? Can someone please help me ?
> Rabbitmq server version : 2.7.1
> Rabbitmq client version : 0.9.1 version of the AMQP protocol
> Erlang: R15B
> Thanks !
I would say a lot depends on what your "node A" code is doing in the
handling of the nodedown info message. Are you using any State in your
gen_server? If yes, could that be impacting your RabbitMQ message handling
in any way? For example, leading to not ack'ing a msg?
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