Why do I need to run the
eum-schema update after importing the MySQL
eum_db dump from the Controller MySQL to the EUM MySQL database?
Starting 4.4, EUM has its own MySQL database in production mode deployment. If we are upgrading from a lower version to 4.4.x, we need to take a dump from the Controller MySQL for the
eum_db schema and import the dump in the EUM server's MySQL database. In 4.4.x, the schema of the EUM server has additional changes from its previous version, which are required for the EUM processor to function. When we are importing the schema level dump, it drops the current
eum_db schema in the EUM database and then restores the older version of the schema from dump. To bring it back to a compatible state for the 4.4.x version, we need to update the schema using the
eum-schema update command.