Database Control error

Question

Hi,
I'm using Weblogic Workshop 7.0.1.0.0829.0, developing a small service to retrive data from SQL server 2000. I created SQL connection pool to SQL server and TxDataSource using this pool. I could able to see the datasources from database control wizard in workshop. I'm using conversation for the webservices. whenever I execute the webservice, I get the following error :
weblogic.jws.control.ControlException: Unable to obtain connection to database[Connection has already been created in this tx context for pool named cgPool. Illegal attempt to create connection from another pool: sqlPool] at weblogic.knex.control.DatabaseControlImpl.acquireResources(DatabaseControlImpl.java:261) at weblogic.knex.context.JwsInternalContext.acquireResources(JwsInternalContext.java:220) at weblogic.knex.control.ControlHandler.invoke(ControlHandler.java:260) at WebServCntrlControl.LoadUser(WebServCntrlControl.ctrl) at Login.Verify(Login.jws:48)
How to resolve it?

Answer 1

Muthu,
The exception that you are seeing is due of the fact that you are using two
different TX datasources within the same transaction context.
Workshop needs the following
1. an XA connection pool and data source for the conversational state
2. another XA connection pool and data source for the DB control which is
used in the conversational method,
3. a non-XA connection pool to which the JMSJDBCStore connects.
Reconfiguring your application and the workshop runtime to use a single non
transactional datasource-cgDataSource, removes the need for TX Data Sources
and XA Drivers.
The other option is to
Upgrade to Service Pack 2 and reconfigure the connection pools to use the XA
driver.
Hope this helps.
Thanks
Raj Alagumalai
WebLogic Workshop Support
"Muthu" <[email protected]> wrote in message
news:3efbc1d1$[email protected]..
Hi,
I'm using Weblogic Workshop 7.0.1.0.0829.0, developing a small serviceto retrive data from SQL server 2000. I created SQL connection pool to SQL
server and TxDataSource using this pool. I could able to see the datasources
from database control wizard in workshop. I'm using conversation for the
webservices. whenever I execute the webservice, I get the following error :
>
weblogic.jws.control.ControlException: Unable to obtain connection todatabase[Connection has already been created in this tx context for pool
named cgPool. Illegal attempt to create connection from another pool:
sqlPool] at
weblogic.knex.control.DatabaseControlImpl.acquireResources(DatabaseControlIm
pl.java:261) at
weblogic.knex.context.JwsInternalContext.acquireResources(JwsInternalContext
.java:220) at
weblogic.knex.control.ControlHandler.invoke(ControlHandler.java:260) at
WebServCntrlControl.LoadUser(WebServCntrlControl.ctrl) at
Login.Verify(Login.jws:48)
>
How to resolve it?