(Sep 05 2019 04:47:22.350 PM +0000),SEVERE,com.bmc.install.product.arsuitekit.platforms.arsystemservers.arserver.ARServerPriorToServerJDatabaseUpgradeTask,
LOG EVENT {Description=[arserver.installer.preupgrade.descriptionFailed to run Database Upgrade Utility]}
(Sep 05 2019 04:47:22.350 PM +0000),SEVERE,com.bmc.install.task.InstallationStateHelper,
LOG EVENT {Description=[AR System Server failed],Detail=[featureARServer]}
(Sep 05 2019 04:47:23.342 PM +0000),WARNING,com.bmc.install.product.arsuitekit.task.ARSuiteKitPostInstallTask,
LOG EVENT {Description=[Failed to executed Add Indexes on Columns BTable Server Utilitiy com.bmc.arsys.artools.ARToolsException: Unable to connect to source server]}
Thu Sep 05 16:47:23 GMT 2019 BMC AR System rollback started 

...........

As Database Upgrade Utility Failed, review the 'upgradeutils.log' located under ..opt\bmc\ARSystem\db directory.

The following error is displayed:
...........
[WARN] [2019-09-05 19:16:08,718] Ignored XML validation warning 
org.xml.sax.SAXParseException: schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/beans/spring-beans-3.0.xsd', because
1) could not find the document;
2) the document could not be read;
3) the root element of the document is not <xsd:schema>. 
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203) 
...........

The issue is with the 3rd party binary which Remedy installer is failing to read or locate.

Perform the following steps to resolve this error and proceed with the Upgrade:
1- Download the installer.
2- Extract the zip file.
3- Download zip file to the server from: ftp://ftp.bmc.com/pub/ARRecommendedFixes/Server/19.08/Installer%20fix%20for%20Spring-Beans/.  Download the componentARServerLinux.zip file.
4- Go to location where you downloaded and extracted the installer.  In the  'ARSuiteKit\Disk2\files' directory replace the componentARServerLinux.zip file provided from the FTP site.
5- Give required permissions 'chmod 755 componentARServerLinux.zip'.
6- Run the the upgrade.