[ https://issues.apache.org/jira/browse/ARTEMIS-3262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Timothy A. Bish resolved ARTEMIS-3262. -------------------------------------- Resolution: Information Provided > Cannot get max-hops >= 2 federation to work > ------------------------------------------- > > Key: ARTEMIS-3262 > URL: https://issues.apache.org/jira/browse/ARTEMIS-3262 > Project: ActiveMQ Artemis > Issue Type: Bug > Components: Federation > Affects Versions: 2.17.0, 2.20.0 > Environment: Artemis 2.17.0 on 3 Linux machines > Dragonwell OpenJDK 11.0.10 > Reporter: Zhang Xiang > Priority: Major > Labels: ActiveMQ, federation > > I want to construct a 3-level MQTT message forwarding system: > A → B → C > Once a message publish under the topic "from-A" to A, all clients subscribing > "from-A" on B and C should receive that message. > Here is the config of B: > > {code:xml} > <connectors> > <connector name="connector-A">tcp://192.168.1.200:61616</connector> > </connectors> > <federations> > <federation name="federation-B"> > <upstream name="upstream-from-A"> > <share-connection>true</share-connection> > <static-connectors> > <connector-ref>connector-A</connector-ref> > </static-connectors> > <policy ref="policy-from-A"/> > </upstream> > <address-policy name="policy-from-A" max-hops="2"> > <include address-match="from-A" /> > </address-policy> > > </federation> > </federations> > <addresses> > <address name="from-A"> > <multicast> > <queue name="from-A-subscription"/> > </multicast> > </address> > {code} > And here is the config of C: > > > {code:xml} > <connectors> > <connector name="connector-B">tcp://192.168.1.100:61616</connector> > </connectors> > <federations> > <federation name="federation-C"> > <upstream name="upstream-from-C"> > <static-connectors> > <connector-ref>connector-C</connector-ref> > </static-connectors> > <policy ref="policy-from-A"/> > </upstream> > <address-policy name="policy-from-A" max-hops="1"> > <include address-match="from-A" /> > </address-policy> > </federation> > </federations> > <addresses> > <address name="from-A"> > <multicast> > <queue name="from-A-subscription"/> > </multicast> > </address> > </addresses> > {code} > The problem is that even I've set max-hops to 2, the message cannot be > forwarded for more than 1 time. > > * If I published a "from-A" message to B, all clients subscribing "from-A" > on C could receive the message. > * If I published a "from-A" message to A, all clients subscribing "from-A" > on B could receive the message, but clients on C wouldn't! > The example config files provided by the software packages do not cover this > kind of situations, nor do the documentation. > Please tell me if it is a bug and if not, what should I do. -- This message was sent by Atlassian Jira (v8.20.10#820010)