Thank you Ken, Erik. I was pointed to this AMQP federation and it is working now on my setup and topology mentioned above.
https://github.com/apache/activemq-artemis-examples/tree/main/examples/features/broker-connection/amqp-federation-multicast-fanout On Tue, Sep 17, 2024 at 5:26 AM Ken Liao <kenlia...@gmail.com> wrote: > Ah sorry I completely missed the version at the bottom of the email. I > recall encountering a similar issue in ActiveMQ classic so I just linked it > there. > > Ken > > On Tue, Sep 17, 2024 at 2:16 AM Devriendt, Erik > <erik.devrie...@siemens.com.invalid> wrote: > > > Hello Ken > > > > Your link points to the documentation of the ActiveMQ Classic version. > > Patrick indicates as version: AMQ: v2.36.0, which is the Artemis version. > > > > I think a better link is > > > https://activemq.apache.org/components/artemis/documentation/latest/federation.html#federation > > > > Anyhow, several months ago (February 2024) I had a similar federation > > question for this mailinglist. > > The title was ' Is a federation of Hub-spoke broker topology possible > with > > Artemis?'. I guess it can be found in the archives of this list. > > Unfortunately the list members were not able to help me. In addition, I > > got higher prio tasks to execute and so I did not investigate my problem > > any further. > > > > I am curious if someone gets this transitive broker federation to work > > this time. > > > > Kind regards > > > > Erik Devriendt > > > > > > -----Original Message----- > > From: Ken Liao <kenlia...@gmail.com> > > Sent: Tuesday, 17 September 2024 02:35 > > To: users@activemq.apache.org > > Cc: Justin Bertram <jbert...@apache.org> > > Subject: Re: ActiveMQ Federation Questions > > > > Hi Patrick > > > > > > > https://activemq.apache.org/components/classic/documentation/networks-of-brokers > > > > In the documentation, there's a configuration for messageTTL in > > NetworkConnector and the default is 1. I have not verified the > > documentation myself or have ever used MQTT, so there's a chance that > it's > > outdated or it's not the fix for the issue that you are encountering. > > > > Thanks, > > Ken > > > > On Mon, Sep 16, 2024 at 9:41 AM Patrick Apichart < > > kittipat.apicharttris...@gmail.com> wrote: > > > > > Thank you Justin for your reply and invitation on Slack. > > > > > > Because you mentioned a larger audience on this mailing list, let me > > > describe my issue here. > > > > > > I am configuring AMQ to form a simple fanout federation like (top > > > broker) > > > --> (middle broker) --> (bottom broker), where an arrow represents > > > --> upstream > > > to downstream relationship. According to the AMQ document, I only > > > configured a downstream broker to connect to an upstream broker using > > > a simple static connector and forward-all "#" address for federation. > > > However, when I connect an MQTT publisher to the top broker and an > > > MQTT subscriber to the bottom one, the latter cannot receive the sent > > message. > > > When I instead connect the subscriber to the middle broker, it can > > > receive the message, and the same applies when I connect publisher to > > > middle and subscriber to bottom. In other words, the federation only > > > works when brokers are "one hop" away and does not work when they are > > further apart. > > > > > > AMQ documents do not provide details on how to configure fanout > > > topology except to set max-hops, and all the activemq federation > > > examples are basically "one-hop-away" type. Therefore, may I ask the > > > community how I can make fanout federation works, and even better may > > > I have an example broker.xml for a fanout? > > > > > > Below are basic setups on my side. > > > OS: Ubuntu 22.04 > > > AMQ: v2.36.0 > > > > > > Thank you, > > > Patrick > > > > > > > > > On Mon, Sep 16, 2024 at 11:45 AM Justin Bertram <jbert...@apache.org> > > > wrote: > > > > > > > This mailing list is the right place to ask questions about all > > > > things ActiveMQ. > > > > > > > > The Slack channel is currently active. I've sent you an invitation. > > > > > > > > Feel free to elaborate on your issue here or on Slack, although the > > > > audience will be much larger here on the mailing list than on Slack. > > > > > > > > > > > > Justin > > > > > > > > On Mon, Sep 16, 2024 at 10:26 AM Patrick Apichart < > > > > kittipat.apicharttris...@gmail.com> wrote: > > > > > > > > > Dear Community, > > > > > > > > > > I am a new member and unsure where to send questions regarding AMQ. > > > > Also, I > > > > > am wondering if the Slack channel is currently active and if > > > > > anyone may kindly invite me to the channel. I am currently having > > > > > an issue with > > > AMQ > > > > > federation configuration for fanout topology and need insightful > > > > assistance > > > > > from the community. > > > > > > > > > > Thank you, > > > > > Patrick > > > > > > > > > > > > > > >
