Network Deployment (Distributed operating systems), v8.0 > Administer applications and their environment > Administer Service integration > Administer message stores > Administer data stores
Configure a messaging engine to use a data store
Although the default message store for a typical messaging engine is file store, you can also configure a messaging engine to use a data store.
Each messaging engine has its own file store or data store. If the data store is chosen the messaging engine uses an instance of a JDBC data source to interact with the database that contains the data store for that messaging engine.
When a new messaging engine that uses a data store is created on a single server, it is configured to use an Apache Derby data source by default. This enables the messaging engine to run without needing any additional configuration.
If you want to configure a new messaging engine to use your chosen data source when you create that messaging engine on a single server, see Add a server as a new bus member.
When a messaging engine is created as a member of a cluster, explicitly configure both the data store and the JDBC data source that the messaging engine uses to interact with the data store. We must also set Purge policy to EntirePool. See Tune the JDBC data source of a messaging engine.
If you do not want to use the default data source configuration, you can use the console to change the configuration parameters. For example, you can change the data source or you can configure the data store to use a different JDBC provider.
If you configure a new messaging engine to use your chosen data source when you create that messaging engine as a member of a cluster, see Add a server as a new bus member.
WAS supports direct customer use of the Apache Derby database in test environments only. The product does not support direct customer use of Apache Derby database in production environments.
Bus members
Add a server as a new bus member
Add a messaging engine to a cluster
Tune the JDBC data source of a messaging engine
Data store [Settings]