On 08/06/2013 09:00 AM, Rothkin, Steve (NY81) wrote:
If we run 2 or 3 nodes in a cluster with mirrored HA queues, are there any
restrictions or special procedures that must be observed to upgrade the qpid
version on individual nodes without any service interruption? Can different
nodes in the cluster run different versions of qpid or do all the nodes have to
be upgraded at the same time (like with RabbitMQ -
http://www.rabbitmq.com/clustering.html#upgrading which then requires a
federation of clusters to keep the service available)?
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You can't upgrade from 0.22 to 0.24 node-by-node. The intent is that from 0.24
onwards you will be able to upgrade node-by-node. I've added
https://issues.apache.org/jira/browse/QPID-5043 to make sure we test that when
we release 0.26.
Cheers,
Alan.
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