Attempting to install VNA fails during the later stages of installation when Wildfly fails to start as per the following:
Setting up standalone.xml
Configuring Wildfly startup
Enable wildfly to run at system startup
Updated user 'admin' to file '/opt/CA/VNA/wildfly/standalone/configuration/mgmt-users.properties'
Updated user 'admin' to file '/opt/CA/VNA/wildfly/domain/configuration/mgmt-users.properties'
Added user 'app' to file '/opt/CA/VNA/wildfly/standalone/configuration/application-users.properties'
Added user 'app' to file '/opt/CA/VNA/wildfly/domain/configuration/application-users.properties'
Copying APM configuration files
Configuring MySQL startup
Note: Forwarding request to 'systemctl enable mysql.service'.
Starting MySQL.Logging to '/opt/CA/MySql/data/GDNB51777020PM1.err'.
Executing Database Update (logLevel = severe)
Starting Liquibase at Fri, 26 Feb 2021 11:50:09 UTC (version 3.8.0 built at 2019-08-19 05:25:46)
Liquibase Community 3.8.0 by Datical
Liquibase: Update has been successful.
ID Cache file (/opt/CA/VNA/data/ID_CACHE.dat) does not exist; skipping migration
Aggregator Cache file (/opt/CA/VNA/data/REMOTE_VNA_CACHE.dat) does not exist; skipping migration
Starting wildfly (via systemctl): Job for wildfly.service failed because the control process exited with error code. See "systemctl status wildfly.service" and "journalctl -xe" for details.
Unable to start wildfly
A problem occurred during installation (install directory not deleted). Backing up to /data/CA_VNA_Install_bak
Wildfly service status shows:
# systemctl status wildfly.service
● wildfly.service - LSB: WildFly Application Server
Loaded: loaded (/etc/rc.d/init.d/wildfly; bad; vendor preset: disabled)
Active: failed (Result: exit-code) since Fri 2021-02-26 11:51:05 UTC; 9min ago
Process: 10944 ExecStart=/etc/rc.d/init.d/wildfly start (code=exited, status=1/FAILURE)
Feb 26 11:50:33 GDNB51777020PM1 systemd: Starting LSB: WildFly Application Server...
Feb 26 11:50:33 GDNB51777020PM1 runuser: pam_unix(runuser:session): session opened for user wildfly by (uid=0)
Feb 26 11:50:33 GDNB51777020PM1 runuser: pam_unix(runuser:session): session closed for user wildfly
Feb 26 11:51:05 GDNB51777020PM1 wildfly: Starting wildfly: [FAILED]
Feb 26 11:51:05 GDNB51777020PM1 wildfly: wildfly failed to start within the timeout allowed.
Feb 26 11:51:05 GDNB51777020PM1 systemd: wildfly.service: control process exited, code=exited status=1
Feb 26 11:51:05 GDNB51777020PM1 systemd: Failed to start LSB: WildFly Application Server.
Feb 26 11:51:05 GDNB51777020PM1 systemd: Unit wildfly.service entered failed state.
Feb 26 11:51:05 GDNB51777020PM1 systemd: wildfly.service failed.
Free memory available is less than minimum required
DX NetOps Virtual Network Assurance 20.2 or later
Ensure that a minimum of 12 GB or more free Memory is available on the server
This will help the wildfly.service to start