[rabbitmq-discuss] How to assure response even if rpc server goes down.

Tue Nov 26 22:18:45 GMT 2013

Also I think it might be worth mentioning the "Publisher Confirms"
feature of RabbitMQ: http://www.rabbitmq.com/confirms.html in case you
need to be sure a message was taking care by the server.

-Alvaro

On Tue, Nov 26, 2013 at 11:14 PM, Michael Klishin
<mklishin at gopivotal.com> wrote:
>
> On 26 Nov 2013, at 23:35, Alfonso Alvz <alfonso.alvz at gmail.com> wrote:
>
>> I was wondering if there's is a way to make the messages persistent in case the server fails?. If the client sends a message with no server running, it stays there awaiting for the response and it doesn't get anything once the server goes up again..
>
> Accumulate messages in the client and re-publish them when a new connection is up. Note that to really
> make this work you’ll need to have a WAL (write-ahead log) of messages on disk to significantly reduce
> message loss probability when your publisher crashes, runs out of memory, etc.
>
>>
>> Having a configuration like this:
>> If the server disappears, is there a way to resume the process whenever the server is up again?
>
> Some clients support automatic recovery but currently don’t provide WAL’s. 3rd party projects built on top
> of clients (e.g. Hutch, Celery or EasyNetQ) may choose to provide WAL and more advanced features
> but it is currently out of scope for the protocol clients.
>
> Message durability controls whether the message will be stored on disk by RabbitMQ. It has no effect
> on what happens when you publish messages on a closed connection.
>
>
> MK
>
> Software Engineer, Pivotal/RabbitMQ
>
>
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