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When using Tomcat as the application server and Oracle XA as the database, the following error is seen in the application server log:
SEVERE [localhost-startStop-1] org.apache.tomcat.util.modeler.Registry.registerComponent Null component Catalina:type=DataSource,host=localhost,context=/suite,class=javax.sql.XADataSource,name="jdbc/AppianPrimaryDS"
Oracle XA is an unsupported database.
Use one of the supported database options in the System Requirements documentation.
This article applies to Appian 18.3 and later using Oracle XA as the database.
Last reviewed: December 2018