The embedded H2 database is NOT recommended in enterprise testing and production environments. It has lower performance, clustering limitations, and can cause file corruption failures. Please use an industry-standard RDBMS such as Oracle, PostgreSQL, MySQL, or MS SQL instead.
You can use the embedded H2 database in development environments and as the local registry in a registry mount.
A datasource is used to establish the connection to a database. By default,
WSO2_CARBON_DB datasource is used to connect to the default H2 database, which stores registry and user management data. After setting up the Remote H2 database to replace the default H2 database, either change the default configurations of the
WSO2_CARBON_DB datasource, or configure a new datasource to point it to the new database as explained below.
Follow the steps below to change the type of the default
Edit the default datasource configuration in the <
aster-datasources.xmlfile as shown below.
Code Block language html/xml
<datasource> <name>WSO2_CARBON_DB</name> <description>The datasource used for registry and user manager</description> <jndiConfig> <name>jdbc/WSO2CarbonDB</name> </jndiConfig> <definition type="RDBMS"> <configuration> <url>jdbc:h2:tcp://localhost/~/registryDB;create=true</url> <username>regadmin</username> <password>regadmin</password> <driverClassName>org.h2.Driver</driverClassName> <maxActive>80</maxActive> <maxWait>60000</maxWait> <minIdle>5</minIdle> <testOnBorrow>true</testOnBorrow> <validationQuery>SELECT 1</validationQuery> <validationInterval>30000</validationInterval> <defaultAutoCommit>false</defaultAutoCommit> </configuration> </definition> </datasource>
The elements in the above configuration are described below:
Element Description url The URL of the database. The default port for a DB2 instance is 50000. username and password The name and password of the database user driverClassName The class name of the database driver maxActive The maximum number of active connections that canbeallocated atthesame time from this pool. Enter any negative value to denote an unlimited number of active connections. maxWait The maximum number of milliseconds that the pool will wait (when there are no available connections) for a connection to be returned before throwing an exception. You can enter zero or a negative value to wait indefinitely. minIdle The minimum number of active connections that can remain idle in the pool without extra ones being created, or enter zero to create none.
The indication of whether objects will be validated before being borrowed from the pool. If the object fails to validate, it will be dropped from the pool, and another attempt will be made to borrow another. validationQuery The SQL query that will be used to validate connections from this pool before returning them to the caller. validationInterval The indication to avoid excess validation, and only run validation at the most, at this frequency (time in milliseconds). If a connection is due for validation, but has been validated previously within this interval, it will not be validated again. defaultAutoCommit
This property is not applicable to the Carbon database in WSO2 products because auto committing is usually handled at the code level, i.e., the default auto commit configuration specified for the RDBMS driver will be effective instead of this property element. Typically, auto committing is enabled for RDBMS drivers by default.
When auto committing is When auto committing is enabled, each SQL statement will be committed to the database as an individual transaction, as opposed to committing multiple statements as a single transaction.
For more information on other parameters that can be defined in the <
master-datasources.xmlfile, see Tomcat JDBC Connection Pool.
Multiexcerpt include MultiExcerptName WUM14Sep PageWithExcerpt Changing to Embedded Derby
Follow the steps below to configure new datasources to point to the new databases the new databases you create to manage registry and/or user management data separately.
- Add a new datasource with similar configurations as the
WSO2_CARBON_DBdatasource above to the <
master-datasources.xmlfile. Change its elements with your custom values. For instructions, see Setting up datasource configurations.
If you are setting up a separate database to store registry-related data, update the following configurations in the <
Code Block language xml
<dbConfig name="wso2registry"> <dataSource>jdbc/MY_DATASOURCE_NAME</dataSource> </dbConfig>
If you are setting up a separate database to store user management data, update the following configurations in the <
Code Block language xml
<Configuration> <Property name="dataSource">jdbc/MY_DATASOURCE_NAME</Property> </Configuration>
- Run the
./h2.shcommand to start the Web console.
- Copy the script text from the SQL file.
- Paste it into the console.
- Click Run.
Restart the server.
You can create database tables automatically when starting the product for the first time by using the
-Dsetupparameter as follows:
Note to writers: Add this content at the end of the page if any of the additional databases is relevant to your product.
Changing the identity/storage/product-specific databases
The topics above show how to change the