[rabbitmq-discuss] Fwd: Unable to create exchange / queue binding

Daniel W. Burke dburke at addictmud.org
Tue Jun 24 17:12:32 BST 2014

I just realized my last two messages went to Simon directly instead of to
the mailing list... my mistake...

---------- Forwarded message ----------
From: Daniel W. Burke <dburke at addictmud.org>
Date: Tue, Jun 24, 2014 at 12:10 PM
Subject: Re: [rabbitmq-discuss] Unable to create exchange / queue binding
To: Simon MacMullen <simon at rabbitmq.com>

We have this happening again in our dev environment.  This is alarming, as
we're going to go live with rabbitmq in production in two days (with four
clusters of three nodes each), and so far the only way we know to get past
it is to down the entire cluster.

Nothing is showing up in the logs for the error, so I don't have any
additional information to provide.  We'll leave it as-is for as long as
possible in the hopes that someone can provide some commands to help
troubleshoot, since its not currently preventing anyone from working.



On Wed, Jun 18, 2014 at 6:13 AM, Daniel W. Burke <dburke at addictmud.org>

> That does not seem like the case to me. All three nodes in the cluster had
> been up a few days, and queues are mirrored to all nodes in the cluster.
> Another potential item of note is that the nodes were restarted last to
> upgrade from 3.3.1 to 3.3.2.  They were restarted one at a time instead of
> bringing the whole cluster down.
> Also, logging seemed to have been stopped until the entire cluster was
> brought down to fix this error, but I see there's a related fix to that in
> 3.3.3 now.
> Dan.
>  On Jun 18, 2014 4:54 AM, "Simon MacMullen" <simon at rabbitmq.com> wrote:
>> On 17/06/2014 19:03, Daniel W. Burke wrote:
>>> NOT_FOUND - no binding BINDING_NAME between exchange 'amq.direct' in
>>> vhost 'MYVHOST' and queue 'QUEUENAME' in vhost 'MYVHOST'
>>> This should be a binding that already exists, but for this queue it
>>> doesn't.  When trying to create it from the management UI we get the
>>> error (or from the http api)... if we change just one character in the
>>> routing key it works... that's not what we want, but it tells me there's
>>> something deeper wrong.
>> This message means that you are trying to create an already known binding
>> to a queue whih is currently down (i.e. unmirrored and on a down node, or
>> mirrored but only to a ste of nodes all of which are down).
>> Does that sound like what's happening?
>> Cheers, Simon
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