There is an cman option today for that. I expect that in due course this
option
will be added for pacemarker also.
In the current cluster with the cman option specified in config, the
broker actively
checks quorum.
Carl.
On 10/19/2010 01:04 PM, Clark O'Brien wrote:
Could you use an external cluster manager like Pacemaker
(http://www.clusterlabs.org/#2) to detect a failed node and move traffic to
other nodes. Pacemaker could also start a recovery instance. Pacemaker is
available from EPEL-compiled versions of Linux.
I would really like to hear opinions on this strategy especially from guys with
networking expertise. We are building messaging in the cloud and this is a
strong contender.
--- On Tue, 10/19/10, Jason Stelzer<[email protected]> wrote:
From: Jason Stelzer<[email protected]>
Subject: Re: Options for clustering/multicast
To: "Alan Conway"<[email protected]>
Cc: [email protected]
Date: Tuesday, October 19, 2010, 10:57 AM
What if I setup a gre tunnel between
the 2 hosts with the mtu set low
enough that it doesn't fragment the packets? At that point
I could
configure corosync to multicast to the virtual interface
and work
around the dodgy switch.
On Tue, Oct 19, 2010 at 11:19 AM, Alan Conway<[email protected]>
wrote:
On 10/19/2010 10:56 AM, Jason Stelzer wrote:
I am setting up a 2 node cluster using the C++
qpidd 0.5 on fedora 12.
This is primarily for failover.
I'm in a situation where one of our hardware
vendors is not handling
multicast correctly.
As an interim solution, is it possible to cluster
via unicast? My
understanding is that the corosync library uses
multicast and that
qpidd relies on that working correctly. This seems
to imply that
unicast is not possible, but I figured I'd ask and
see if I get a
definitive answer one way or the other.
No, there's not currently a way to run clustering over
unicast.
--
J.
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