By default, consumers drive demand for the demand forwarding bridge (network connectors).
Gary has written a little about the terms: http://blog.garytully.com/2012/07/activemq-broker-networks-think-demand.html So if you have consumers popping up, you can expect messages to flow toward those consumers. On Mon, Oct 7, 2013 at 8:01 AM, Frazer Irving < frazer.irv...@mailonline.co.uk> wrote: > Hi, > > I have a potential problem with my activemq setup, and I would appreciate > any feedback. My setup is as follows: > > I have 2 activeMQ nodes, running in clustered mode. On these nodes I have > a VirtualTopic "article". I subscribe to this topic using the following url > using camel: > > > failover://(tcp://amq-node-1:61616,tcp://amq-node-2:61616)?jms.watchTopicAdvisories=false&randomize=false > > Recently, to support another application, we have enabled stomp on > amq-node-2. A client is connecting to the aforementioned virtualTopic from > NodeJs. > > What we are seeing is that the queues associated with the VirtualTopic for > the camel clients (Consumer.ConsumerX.VirtualTopic.article) are appearing > on amq-node-2, and the pending messages for those queues keep going up. > > Messages are being processed by both the Node and Camel consumers. The > pending messages on amq-node-1 show 0 pending. > > Can you tell me what is happening here? I presume the addition of the > consumer on node2 is causing some form of replication to node2 that does > not normally occur in our failover mode. Is this harmful? I'm particularly > interested in whether the actual messages are being replicated to > amq-node-2 or we are just seeing the increased number due to metadata being > replicated. And is there something we could do differently to avoid this? > > Thanks > > f > > > ______________________________________________________________________ > This e-mail and any attached files are intended for the named addressee > only. It contains information, which may be confidential and legally > privileged and also protected by copyright. Unless you are the named > addressee (or authorised to receive for the addressee) you may not copy or > use it, or disclose it to anyone else. If you received it in error please > notify the sender immediately and then delete it from your system. > Associated Newspapers Ltd. Registered Office: Northcliffe House, 2 Derry > St, Kensington, London, W8 5TT. Registered No 84121 England. -- *Christian Posta* http://www.christianposta.com/blog twitter: @christianposta
