On Fri, Aug 15, 2008 at 9:22 AM, Mark Webb <[EMAIL PROTECTED]> wrote: > I would like to take advantage of the message group feature in ActiveMQ > 5.1. After reading the page (http://activemq.apache.org/message-groups.html), > I have a question. > > Is the message group feature for multiple consumers on the same > queue/topic?
yes multiple consumers on 1 queue. (Not supported on topics) > > What I mean is that in the example, there are consumers interested in stocks > (IBM,MSFT, SUNW..etc). Are these consumers all subscribed to the same > topic/queue or different topics/queues? same queue. > > Assuming that these consumers all subscribe to the same topic/queue, are > there any implications with creating hundreds (or thousands) or message > groups? > No. We use a hash calculation on the group id to select the consumer so there is no memory issues if a large number of groups used. > > Thanks. > -- Regards, Hiram Blog: http://hiramchirino.com Open Source SOA http://open.iona.com
