The cluster node was not rebooted before deploying the aveksa.ear file.
After configuring a cluster node by modifying the domain.xml and host.xml files, that node needs to be rebooted before continuing the cluster configuration steps.
Complete steps to deploy the ear are:
Configure the domain node by modifying domain.xml and host.xml.
Reboot the domain node. As the root user run the linux 'shutdown -r [time]' command where [time] is the amount of time before the system shuts down. To shutdown immediately use 'now' as in the following:
shutdown -r now
Configure and run configureWildfly.sh.
Deploy the aveksa.ear by running the following commands as user 'oracle':