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Open the <EI_HOME>/wso2/broker/conf/datasources/m aster-datasources.xml file and locate the <datasource> configuration element.

You simply have to update the url pointing to your database, the username and password required to access the database and the MySQL driverthe driver details as shown below. Further, be sure to set the <defaultAutoCommit> element to false for the MB database.

Localtabgroup

Localtab

title	MySQL

Code Block

language	html/xml

<datasource>
       <name>WSO2_MB_STORE_DB</name>
       <description></description>
       <jndiConfig>
           <name>jdbc/WSO2MBStoreDB</name>
       </jndiConfig>
       <definition type="RDBMS">
           <configuration>
               <url>jdbc:mysql://localhost:3306/wso2_mb</url>
               <username>regadmin</username>
               <password>regadmin</password>
               <driverClassName>com.mysql.jdbc.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>

Localtab

title	MS SQL

Code Block

language	xml

<datasource>
   <name>WSO2_MB_STORE_DB</name>
   <description></description>
   <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>com.microsoft.sqlserver.jdbc.SQLServerDriver</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>

Localtab

title	Oracle

Code Block

language	xml

<datasource>
     <name>WSO2_MB_STORE_DB</name>
	 <description></description>
     <jndiConfig>
         <name>WSO2MBStoreDB</name>
     </jndiConfig>
     <definition type="RDBMS">
         <configuration>
            <driverClassName>oracle.jdbc.driver.OracleDriver</driverClassName>
            <url>jdbc:oracle:thin:@localhost:1521/orcl</url>
            <maxActive>100</maxActive>
            <maxWait>60000</maxWait>
            <minIdle>5</minIdle>
            <testOnBorrow>true</testOnBorrow>
            <validationQuery>SELECT 1 FROM DUAL</validationQuery>
            <validationInterval>30000</validationInterval>
            <username>scott</username>
            <password>tiger</password>
            <defaultAutoCommit>false</defaultAutoCommit>
         </configuration>
     </definition>
</datasource>

Optionally, you can update the configuration elements given below for your database connection.

Element Description

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.

Anchor
default_auto_commit
default_auto_commit
defaultAutoCommit

It is required to disable auto committing by setting this property to false for the MB database. This means that each SQL statement will be committed to the database as individual transactions, as opposed to committing multiple SQL statements as one transaction.

Info
For more information on other parameters that can be defined in the `<EI_HOME>/wso2/broker/conf/`datasources/ `master-datasources.xml` file, see Tomcat JDBC Connection Pool.

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