The client doesn't failover to the backup server if the URL targets non clustered ports.

Start 2 brokers with a configuration like this: https://github.com/avi5kdonrh/Issues/blob/main/broker_active.xml https://github.com/avi5kdonrh/Issues/blob/main/broker_passive.xml Then start a core client and specify an HA URL that doesn't target the ports specified in the static connectors Stop the active broker and let it failover. Notice that the client always retries at the last active URL and doesn't try the other URL for the passive broker. url = "(tcp: //localhost:61617,tcp://localhost:61619)?ha= true ;reconnectAttempts=3" [ctiveMQ-client-global-threads)] client WARN AMQ212037: Connection failure to localhost/127.0.0.1:61617 has been detected: AMQ219015: The connection was disconnected because of server shutdown [code=DISCONNECTED] [ctiveMQ-client-global-threads)] ClientSessionFactoryImpl DEBUG Trying reconnection attempt 0/3 [ctiveMQ-client-global-threads)] ClientSessionFactoryImpl DEBUG Trying to connect with connectorFactory = org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnectorFactory@3eb7fc54, connectorConfig=TransportConfiguration(name= null , factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61617&host=localhost&reconnectAttempts=3&ha= true &useTopologyForLoadBalancing= false [ctiveMQ-client-global-threads)] NettyConnector DEBUG Connector NettyConnector [host=localhost, port=61617, httpEnabled= false , httpUpgradeEnabled= false , useServlet= false , servletPath=/messaging/ActiveMQServlet, sslEnabled= false , useNio= true ] using native epoll [ctiveMQ-client-global-threads)] client DEBUG AMQ211002: Started EPOLL Netty Connector version 4.1.48.Final-redhat-00001 to localhost:61617 [ctiveMQ-client-global-threads)] NettyConnector DEBUG Remote destination: localhost/127.0.0.1:61617 [ActiveMQ-client-netty-threads)] NettyConnector DEBUG Added ActiveMQClientChannelHandler to Channel with id = 557dff53 [ctiveMQ-client-global-threads)] ClientSessionFactoryImpl DEBUG Connector towards NettyConnector [host=localhost, port=61617, httpEnabled= false , httpUpgradeEnabled= false , useServlet= false , servletPath=/messaging/ActiveMQServlet, sslEnabled= false , useNio= true ] failed [ctiveMQ-client-global-threads)] ClientSessionFactoryImpl DEBUG Backup is not active, trying original connection configuration now. [ctiveMQ-client-global-threads)] ClientSessionImpl DEBUG client ack messageID = 25769804383 [ctiveMQ-client-global-threads)] ClientSessionFactoryImpl DEBUG Trying reconnection attempt 1/3 [ctiveMQ-client-global-threads)] ClientSessionFactoryImpl DEBUG Trying to connect with connectorFactory = org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnectorFactory@3eb7fc54, connectorConfig=TransportConfiguration(name= null , factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61617&host=localhost&reconnectAttempts=3&ha= true &useTopologyForLoadBalancing= false [ctiveMQ-client-global-threads)] NettyConnector DEBUG Connector NettyConnector [host=localhost, port=61617, httpEnabled= false , httpUpgradeEnabled= false , useServlet= false , servletPath=/messaging/ActiveMQServlet, sslEnabled= false , useNio= true ] using native epoll [ctiveMQ-client-global-threads)] client DEBUG AMQ211002: Started EPOLL Netty Connector version 4.1.48.Final-redhat-00001 to localhost:61617 [ctiveMQ-client-global-threads)] NettyConnector DEBUG Remote destination: localhost/127.0.0.1:61617 [ActiveMQ-client-netty-threads)] NettyConnector DEBUG Added ActiveMQClientChannelHandler to Channel with id = f217195d [ctiveMQ-client-global-threads)] ClientSessionFactoryImpl DEBUG Connector towards NettyConnector [host=localhost, port=61617, httpEnabled= false , httpUpgradeEnabled= false , useServlet= false , servletPath=/messaging/ActiveMQServlet, sslEnabled= false , useNio= true ] failed [ctiveMQ-client-global-threads)] ClientSessionFactoryImpl DEBUG Backup is not active, trying original connection configuration now. [ctiveMQ-client-global-threads)] ClientSessionFactoryImpl DEBUG Trying reconnection attempt 2/3 [ctiveMQ-client-global-threads)] ClientSessionFactoryImpl DEBUG Trying to connect with connectorFactory = org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnectorFactory@3eb7fc54, connectorConfig=TransportConfiguration(name= null , factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61617&host=localhost&reconnectAttempts=3&ha= true &useTopologyForLoadBalancing= false [ctiveMQ-client-global-threads)] NettyConnector DEBUG Connector NettyConnector [host=localhost, port=61617, httpEnabled= false , httpUpgradeEnabled= false , useServlet= false , servletPath=/messaging/ActiveMQServlet, sslEnabled= false , useNio= true ] using native epoll [ctiveMQ-client-global-threads)] client DEBUG AMQ211002: Started EPOLL Netty Connector version 4.1.48.Final-redhat-00001 to localhost:61617 [ctiveMQ-client-global-threads)] NettyConnector DEBUG Remote destination: localhost/127.0.0.1:61617 [ActiveMQ-client-netty-threads)] NettyConnector DEBUG Added ActiveMQClientChannelHandler to Channel with id = c914b444 [ctiveMQ-client-global-threads)] ClientSessionFactoryImpl DEBUG Connector towards NettyConnector [host=localhost, port=61617, httpEnabled= false , httpUpgradeEnabled= false , useServlet= false , servletPath=/messaging/ActiveMQServlet, sslEnabled= false , useNio= true ] failed [ctiveMQ-client-global-threads)] ClientSessionFactoryImpl DEBUG Backup is not active, trying original connection configuration now. [ctiveMQ-client-global-threads)] client WARN AMQ212005: Tried 3 times to connect. Now giving up on reconnecting it. [ctiveMQ-client-global-threads)] ClientSessionImpl DEBUG calling cleanup on ClientSessionImpl [name=b9a295f2-5cec-11ec-a60c-28d0ea5d41d9, username=admin, closed= false , factory = org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl@79b06cab, metaData=(jms-session=,)]@1807f5a7 [ctiveMQ-client-global-threads)] client WARN AMQ212002: Timed out waiting for handler to complete processing [ctiveMQ-client-global-threads)] ClientSessionImpl DEBUG calling cleanup on ClientSessionImpl [name=b9aad353-5cec-11ec-a60c-28d0ea5d41d9, username=admin, closed= false , factory = org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl@79b06cab, metaData=(jms-session=,)]@2584b82d