Add the line
localDatastoreFormat=derby
to the global.properties file in the root directory of your configuration. Since 2015.02 firebird is the default local datastore format, if no format is defined.
Note that you have to delete the localdatastore when applying this change on the instance where you are changing the database, otherwise database files inside the localdatastore can corrupt your new localdatastore.
https://publicwiki.deltares.nl/display/FEWSDOC/global+properties+file
Tips and tricks
- You might experience problems starting up an OC with a new localDatastoreFormat if a local Config file is present in the region home directory. For the first login to the MC it needs to pick up the configuration from the central database. If there is a local Config present it keeps hanging and does not start up completely.
