Good evening, Stupid question for you and need some clarification.
In Apache Artemis, is a cluster with 2 brokers that have a shared store setup in a primary/backup configuration considered a symmetrical cluster? The documentation is a little vague: https://activemq.apache.org/components/artemis/documentation/latest/clusters.html#symmetric-cluster “With a symmetric cluster every node in the cluster is connected to every other node in the cluster. In other words every node in the cluster is no more than one hop away from every other node.” Then this example: https://github.com/apache/activemq-artemis-examples/tree/main/examples/features/clustered/symmetric-cluster says this: “To set up ActiveMQ Artemis to form a symmetric cluster we simply need to mark each broker as clustered and we need to define a cluster-connection in broker.xml”. For example, on my first broker the only changes I made to broker.xml just below <core> and <persistence-enabled> was: … <core…> <name>node-0</name> <connectors> <connector name="node-0">tcp://artemis-broker-1:61616</connector> <connector name="node-1">tcp://artemis-broker-2:61616</connector> </connectors> <cluster-connections> <cluster-connection name="my-cluster"> <connector-ref>node-0</connector-ref> <static-connectors> <connector-ref>node-1</connector-ref> </static-connectors> </cluster-connection> </cluster-connections> <ha-policy> <shared-store> <primary> <failover-on-shutdown>true</failover-on-shutdown> </primary> </shared-store> </ha-policy> <persistence-enabled>true</persistence-enabled> … On my second broker I had: … <core …> <name>node-1</name> <connectors> <connector name="node-0">tcp://artemis-broker-1:61616</connector> <connector name="node-1">tcp://artemis-broker-2:61616</connector> </connectors> <cluster-connections> <cluster-connection name="my-cluster"> <connector-ref>node-1</connector-ref> <static-connectors> <connector-ref>node-0</connector-ref> </static-connectors> </cluster-connection> </cluster-connections> <ha-policy> <shared-store> <backup> <failover-on-shutdown>true</failover-on-shutdown> <allow-failback>true</allow-failback> </backup> </shared-store> </ha-policy> <persistence-enabled>true</persistence-enabled> … Would this be considered a symmetrical cluster? Regards, William Crowell This e-mail may contain information that is privileged or confidential. If you are not the intended recipient, please delete the e-mail and any attachments and notify us immediately.
