[rabbitmq-discuss] Is it error?

[Тимур]

My client raise error on 404 error.
I use passive mode for detect exists queue or not. And if it not exists
then i try create it without passive. So, i realy cant do something like
that:

connection->channel_close(1);
connecton->channel_open(1);

because "Opening channel: server connection error 503, message:
COMMAND_INVALID - second 'channel.open'"

Instead this i reopen connect to server, but its not good way.


2013/2/5 Tim Watson <tim at rabbitmq.com>

> On 4 Feb 2013, at 18:31, Тимур wrote:
>
> > I found strange behavior in some case. What i do:
> >
> > 1. Connect to server
> > 2. Open channel with name is '1'
>
> Channel's don't have *name* property, so I'm not sure what you're talking
> about here.
>
> > 3. Declare queue with passive = 1
> >
>
> Does the queue already exist, or are you trying to create it here?
>
> > And after that i try declare queue with passive = 0 if i receive 404
> error in third step. Receive error like 'Declare Exchange: Resource
> temporary unavailable'. Is it actual behavior?
>
>
> From
> http://www.rabbitmq.com/amqp-0-9-1-reference.html#queue.declare.passive
>
> "bit passive
>  If set, the server will reply with Declare-Ok if the queue already exists
> with the same name, and raise an error if not."
>
> So you would end up with a channel error if the queue doesn't already exit
> and will need to open a new channel. If that's the case, then it's likely
> the behaviour you're seeing is consistent but the client error is
> confusing. The 404 channel error means "The client attempted to work with a
> server entity that does not exist".
>
> Cheers,
> Tim
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