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Preparing DB2 Database

Download the latest version of DB2 Express-C and install it on your computer.

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Setup Database and Users

Using DB2 Command Processor

1. Run DB2 console. Run db2start in command line to open the DB2

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Please refer DB2 Express-C Guide for more details on DB2 commands.

Using DB2 Control Center

1. Open the DB2 control center using the command db2cc.

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4. Give required permissions to newly created users.

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Setup Configuration Files

1. Edit the default database configuration defined in the master-datasources.xml file located at $GREG_HOME/repository/conf/datasources directory of the deployed registry instance as below. Both the database configurations in registry.xml and user-mgt.xml refer this data source.

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       <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:db2://SERVER_NAME:PORT/DB_NAME</url>
                    <username>regadmin</username>
                    <password>regadmin</password>
                    <driverClassName>com.ibm.db2.jcc.DB2Driver</driverClassName>
                    <maxActive>80</maxActive>
                    <maxWait>360000</maxWait>
                    <minIdle>5</minIdle>
                    <testOnBorrow>true</testOnBorrow>
                    <validationQuery>select 1 <validationQuery>SELECTfrom 1<sysibm.sysdummy1</validationQuery>
                    <validationInterval>30000</validationInterval>
                </configuration>
            </definition>
        </datasource>

The database configuration options

• url - The URL of the database.

• username - The name of the database user.

• password - The password of the database user.
• driverClassName - The class name of the database driver.
• maxActive - The maximum number of active connections that can be allocated from this pool at the same time or negative for no limit.
• 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, or <= 0 to wait indefinitely.
• minIdle - The minimum number of active connections that can remain idle in the pool without extra ones being created or 0 to create none.

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Setup DB2 jdbc Drivers

Copy the DB2 jdbc Drivers ( db2jcc.jar and db2jcc_license_c0u.jar) from $DB2_HOME\SQLLIB\java to $GREG_HOME/repository/components/lib directory.

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Create Database Tables

Database tables can be created either manually by running scripts or automatically by using start-up parameters.

Using Scripts

Database tables can be created manually by executing the following script in DB2 Express C command editor.

$GREG_HOME/dbscripts/db2.sql

Using start-up Parameters

Database tables can be created when starting WSO2 Governance Registry for the first time using the startup parameters as follows.

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