Most application data is obviously located on your database server, you are responsible for regular backup of such database. Upgrading your application also upgrade the associated database content (database schema, stored procedures, indexes and data).
A part of the Talend Data Catalog software is implemented as database stored procedures, such as tracing lineage. A given version of Talend Data Catalog corresponds to a version of the software in the Tomcat application server and a version of the software in the database.
Therefore, make sure you always backup your database before any upgrade.
The upgrade process may take several hours (on large repositories) and also need extra space for temp data during the migration. Therefore, make sure the database has at least 20% free space.
It is also important to understand that the software installation directory also contains some critical application data and setup customizations that must be taken into account in your backup or upgrade process.
|/postgresql/data||contains the actual PostgreSQL database data when configured with the Setup utility, in the Database Server tab.|
|/data||contains other application data:
Remember that the actual location of this application server data directory can be configured with the Setup utility, in the Application Server tab.
|/conf||contains the configuration and customizations:
|/tomcat/conf||The tomcat.properties file contains the Tomcat port and
The keystore file contains the Tomcat SSL certificates, defined with the Setup utility.
|/jre/lib/security||contains some SSL customizations.
It is recommended to not reuse such directory, but rather reinstall the SSL keys with the Setup utility.