If the primary Data Vault server fails, and the failover server takes over, existing Data Visualization reports in Data Archive may stop working. This happens because the JDBC URL in the report catalog points to the failed primary server. Existing Data Visualization reports may also stop working if the Data Vault user password expires.
In either case you can restore the functionality of existing reports without having to update the JDBC URL or the Data Vault user password in every report catalog and republish them. Instead, you can configure an XML file to specify an updated JDBC URL or Data Vault password.