[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - datasource pool is alocated twice

erahamim do-not-reply at jboss.com
Mon Jan 8 09:59:38 EST 2007


Hi,
I'm using jboss 4.0.5.  I have XA datasource with oracle 10 as database.  I init my application using a start up servlet.  In the init method of the servlet I do some queries to database which are done ok.  Then in the first time that I try to get a database connection using stateless ejb I see that the jboss is allocate the pool again.

So even that my data source is defined in oracle-xa-ds.xml
   <min-pool-size>10</min-pool-size>
    <max-pool-size>40</max-pool-size>

I can see in the JCA jmx JBossManagedConnectionPool that 
AvailableConnectionCount - 80
ConnectionCount - 20
MinSize - 10
MaxSize - 40

Before getting the connection from ejb 
AvailableConnectionCount   40 
ConnectionCount is 10.
MinSize - 10
MaxSize - 40


I always get the connection in the same way
(DataSource) ic.lookup("java:/DataSourceDS").getConnection();
The different is the context that I come from, servlet or ejb.

Any idea?

My full data source definition is:

<xa-datasource>
   <jndi-name>DataSourceDS</jndi-name>
   <track-connection-by-tx/>
   <isSameRM-override-value>false</isSameRM-override-value>
   <xa-datasource-class>oracle.jdbc.xa.client.OracleXADataSource</xa-datasource-class>
	  <xa-datasource-property name="URL">jdbc:oracle:thin:@(DESCRIPTION= (ADDRESS_LIST=(LOAD_BALANCE=on) (ADDRESS=(PROTOCOL=TCP)(HOST=1.2.3.4)(PORT=1521)) (ADDRESS=(PROTOCOL=TCP)(HOST=1.2.3.5)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=name)))</xa-datasource-property>
	<xa-datasource-property name="User">user</xa-datasource-property>
   <xa-datasource-property name="Password">password</xa-datasource-property>
   <exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.OracleExceptionSorter</exception-sorter-class-name>
   <no-tx-separate-pools/>	
	<blocking-timeout-millis>1111</blocking-timeout-millis>
   <min-pool-size>10</min-pool-size>
   <max-pool-size>40</max-pool-size>
   <idle-timeout-minutes>5</idle-timeout-minutes>
   <track-statements>true</track-statements>
   <prepared-statement-cache-size>100</prepared-statement-cache-size>
     
        <type-mapping>Oracle9i</type-mapping>
     
 </xa-datasource>


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