[rabbitmq-discuss] Instable HA cluster

James Lewis james.lewis at 7digital.com
Wed Jul 3 12:18:52 BST 2013

Hi, did you have any luck with this?  I'm just setting up a rabbit cluster 
for my team and I'm running into exactly the same problem.  What worries me 
is that the docs on clustering say that the network connection between 
nodes *must* be reliable - I was hoping that a 3 node cluster would 
continue running if the connection between 2 nodes dropped and then allow 
the dropped node to join back into the cluster when the connection came 
back up...?

Any help appreciated,

On Friday, January 25, 2013 9:52:30 AM UTC, Ben West wrote:
> Hi,
> I've been having lots of instability problems with a rabbit cluster I have 
> set up.
> Since deploying Rabbit MQ a few months ago we have experienced ongoing 
> instability with the service.
> Our setup:
>    - RabbitMQ 3.0.1 running on Windows Azure VMs (Server 2012)
>    - We have 2 VMs set up with a rabbit running on each and clustered 
>    (with a HA policy), both running as disk nodes
>    - Using EasyNetQ for producers consumers
> When I first set up the cluster everything seems to be running well and 
> can see through the Rabbit console the HA mirroring is all set up.
> However after a couple of days I will log into the console and find the 
> cluster is broken, usually with one node saying "Node not running" and a 
> number of the consumers have dropped off the queues. I then have to tear 
> down the cluster and build it all up again - not a massive job, but I'm 
> sure i shouldn't need to do this every week!
> At first I thought it may be due to Windows updates automatically 
> restarting the server and possibly breaking the cluster, but have now 
> turned these off and still get the same problem. I have also tried 
> rebooting the servers one at a time to test this but the cluster seems to 
> pick itself back up once the reboot has finished.
> I've done lots of reading online but cant seem to find too many 
> suggestions so I hope someone here may be able to help.
> I'm more thank happy to provide logs if these may be useful?
> Any help will be grately appreciated!
> Thanks,
> Ben
>  <http://www.mopowered.co.uk>

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