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Download and copy one of the following drivers to the WSO2 product's the <MB_HOME>/repository/components/lib/ directory.

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Once this is done, the driver class relevant to the driver you use should be updated in the master-datasources.xml file when you set up the datasource configurations. By default the master-datasources.xml file is configured with the driver class for the jtds-1.3.1.jar driver, which is net.sourceforge.jtds.jdbc.Driver. If you use the JDBC driver 6.0, 4.2, 4.1 or 4.0, you need to change the driver class configuration to com.microsoft.sqlserver.jdbc.SQLServerDriver.

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Open the <MB_HOME>/repository/conf/datasources/master-datasources.xml file. This is where datasources are configured to point to the databases used by WSO2 MB. This file consists of commented out configurations for datasources. The datasource configuration for MSSQL is among these. The changes made to this file must be done in both broker nodes.

and <password> elements according to the database you created. The <driverClassName> element

Uncomment or add the following configuration into to the master-datasources.xml file. Update the JDBC URL to correctly point to your database and enter the username and password for the MSSQL database user with the proper permissions.

NoteGiven below is the default configuration in the master-datasources.xml file. You need to update the <username>

The <driverClassName> element should be updated according to the driver you used.

Code Block

language	xml

<datasource>
   <name>WSO2_MB_STORE_DB</name>
   <jndiConfig>
       <name>WSO2MBStoreDB</name>
   </jndiConfig>
   <definition type="RDBMS">
         <configuration>
                    <url>jdbc:jtds:sqlserver://localhost:1433/wso2_mb</url>
                    <username>sa</username>
                    <password>sa</password>
                    <driverClassName>net.sourceforge.jtds.jdbc.Driver</driverClassName>
                    <maxActive>200</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 can be allocated at the same 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.
testOnBorrow	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	Specifies whether each SQL statement should be automatically committed when it is completed. By default, this element is set to `false`.

Info
For more information on other parameters that can be defined in the `<MB_HOME>/repository/conf/`datasources/`master-datasources.xml` file, see Tomcat JDBC Connection Pool.

Open the <MB_HOME>/repository/conf/broker.xml file. This is the root configuration file of WSO2 MB. The changes made to this file must be done in all the MB nodes.

In the broker.xml file we need to use the MSSQL message store and Andes context store. To do this, uncomment or add the following configuration.

Code Block

language	xml

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<persistence>
  <messageStore class="org.wso2.andes.store.rdbms.RDBMSMessageStoreImpl">
        <property name="dataSource">jdbc/MSSQLWSO2MBStoreDB</property>
  </messageStore>

  <andesContextStore    class="org.wso2.andes.store.rdbms.RDBMSAndesContextStoreImpl">
        <property name="dataSource">jdbc/MSSQLWSO2MBStoreDB</property>
  </andesContextStore>
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</persistence>

The elements in the above configuration are described below.

The fully qualified name of the respective implementation class should be defined under the class attributes of messageStore and andesContextStore elements. This implementation class will be used by MB to persist relevant information.
The <property> elements are used to define different properties for each store. The minimal property for starting each store is the dataSource property. Depending on the implementation, the required properties may differ.

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