When shutting down the server in cluster, Artemis is sometimes logging warnings like:
08:52:40,408 WARN [org.apache.activemq.artemis.core.server] (Thread-0 (ActiveMQ-remoting-threads-ActiveMQServerImpl::name=default-253785251)) AMQ222061: Client connection failed, clearing up resources for session be777421-352b-11ef-b9c6-fa163e1c44e0
08:52:40,423 WARN [org.apache.activemq.artemis.core.server] (Thread-0 (ActiveMQ-remoting-threads-ActiveMQServerImpl::name=default-253785251)) AMQ222107: Cleared up resources for session be777421-352b-11ef-b9c6-fa163e1c44e0
08:53:35,017 WARN [org.apache.activemq.artemis.core.client] (activemq-discovery-group-thread-dg-group10 (DiscoveryGroup-249566635)) AMQ212034: There are more than one servers on the network broadcasting the same node id. You will see this message exactly once (per node) if a node is restarted, in which case it can be safely ignored. But if it is logged continuously it means you really do have more than one node on the same network active concurrently with the same node id. This could occur if you have a backup node active at the same time as its live node. nodeID=b581e773-352b-11ef-a698-fa163e1c44e0
08:53:47,302 WARN [org.apache.activemq.artemis.core.server] (Thread-16 (ActiveMQ-server-org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl$6@36f38f2a)) AMQ224091: Bridge ClusterConnectionBridge@1fe7ab2b [name=$.artemis.internal.sf.my-cluster.b581e773-352b-11ef-a698-fa163e1c44e0, queue=QueueImpl[name=$.artemis.internal.sf.my-cluster.b581e773-352b-11ef-a698-fa163e1c44e0, postOffice=PostOfficeImpl [server=ActiveMQServerImpl::name=default], temp=false]@520221e3 targetConnector=ServerLocatorImpl (identity=(Cluster-connection-bridge::ClusterConnectionBridge@1fe7ab2b [name=$.artemis.internal.sf.my-cluster.b581e773-352b-11ef-a698-fa163e1c44e0, queue=QueueImpl[name=$.artemis.internal.sf.my-cluster.b581e773-352b-11ef-a698-fa163e1c44e0, postOffice=PostOfficeImpl [server=ActiveMQServerImpl::name=default], temp=false]@520221e3 targetConnector=ServerLocatorImpl [initialConnectors=[TransportConfiguration(name=connector, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?httpUpgradeEndpoint=acceptor&activemqServerName=default&httpUpgradeEnabled=true&port=9080&host=rhos-d-rhel8-large-146], discoveryGroupConfiguration=null]]::ClusterConnectionImpl@311557476[nodeUUID=ad9b812c-352b-11ef-bfaa-fa163e1c44e0, connector=TransportConfiguration(name=connector, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?httpUpgradeEndpoint=acceptor&activemqServerName=default&httpUpgradeEnabled=true&port=8080&host=rhos-d-rhel8-large-146, address=jms, server=ActiveMQServerImpl::name=default])) [initialConnectors=[TransportConfiguration(name=connector, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?httpUpgradeEndpoint=acceptor&activemqServerName=default&httpUpgradeEnabled=true&port=9080&host=rhos-d-rhel8-large-146], discoveryGroupConfiguration=null]] is unable to connect to destination. Retrying
Expectation is that during clean shutdown no warnings/errors will be logged.
Customer Impact: All warnings are harmless but restarting EAP server is normal admin operation and server should not log any warning/error. Log monitoring might cause false alarm on customer side.