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Tue Apr 12 10:32:41 BST 2011

and that clustering across the WAN should not be done. I've been pointed at=
 the shovel plugin to handle communications from one data center to the oth=
er. I've been experimenting with shovel a little to figure out how to do th=
is, but I seem to have a loop going on where a published message from datac=
enter A goes to datacenter B, but then B goes ahead and shovels it right ba=
ck to A (more than 800 times per second).

I've seen a video from 2009 (Tony Garnock-Jones) that discusses this and in=
dicated that shovel was being modified to only handle this scenario to look=
 at some labels to determine if the message has been to the current node, a=
nd just drop it if it has.  This change does not appear to have happened, u=
nless I'm missing something.

Does anyone have a similar scenario or know how to handle high availability=
 peer-to-peer connections across a WAN with RabbitMQ?

-Wes

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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue vli=
nk=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>Situation:<o:p><=
/o:p></p><p class=3DMsoNormal>Each RabbitMQ cluster has multiple nodes (2).=
 My platform I&#8217;m working with has 2 datacenters each with a RabbitMQ =
cluster. I need to configure RabbitMQ such that any message published to an=
y exchange on any node can be consumed by a queue on either cluster.<o:p></=
o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>From=
 the web and also a support ticket/question with VMWare I am to understand =
that clustering across the WAN should not be done. I&#8217;ve been pointed =
at the shovel plugin to handle communications from one data center to the o=
ther. I&#8217;ve been experimenting with shovel a little to figure out how =
to do this, but I seem to have a loop going on where a published message fr=
om datacenter A goes to datacenter B, but then B goes ahead and shovels it =
right back to A (more than 800 times per second).<o:p></o:p></p><p class=3D=
MsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>I&#8217;ve seen a video=
 from 2009 (Tony Garnock-Jones) that discusses this and indicated that shov=
el was being modified to only handle this scenario to look at some labels t=
o determine if the message has been to the current node, and just drop it i=
f it has.&nbsp; This change does not appear to have happened, unless I&#821=
7;m missing something.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p>=
</p><p class=3DMsoNormal>Does anyone have a similar scenario or know how to=
 handle high availability peer-to-peer connections across a WAN with Rabbit=
MQ?<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoN=
ormal>-Wes<o:p></o:p></p></div></body></html>=

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