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

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

    Localtab Group
    Localtab
    titleMySQL
    Code Block
    languagehtml/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
    titleMS SQL
    Code Block
    languagexml
    <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
    titleOracle
    Code Block
    languagexml
    <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>
  3. Optionally, you can update the configuration elements given below for your database connection.

    ElementDescription
    maxActiveThe 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.
    maxWaitThe 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.
    minIdleThe 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.
    validationQueryThe SQL query that will be used to validate connections from this pool before returning them to the caller.
    validationIntervalThe 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 that multiple SQL statement statements will be committed to the database as individual transactionsone transaction, as opposed to committing multiple each SQL statements statement as one an individual 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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