When I attempt to connect to DB2 running in windows server 2003 machine, I get the following error message:

com.ibm.db2.jcc.c.DisconnectException: [ibm][db2][jcc][t4][2034][11148] Execution failed due to a distribution protocol error that caused deallocation of the conversation. A DRDA Data Stream Syntax Error was detected. Reason: 0x2110.

What am I missing there? I used JDBC type 4 driver (driver class=com.ibm.db2.jcc.DB2Driver). Please help me to overcome this problem.

Version mismatch between the client and the server?

I don't think it is a version issue. We are using DB2 Express 9.1 version.

Client is a pure java application that uses hibernate and C3P0 to communicate with DB2. Surprisingly, a test java code using driver.connect method turns out successful. The error occurs while attempting to connect to the DB2 server using hibernate and C3P0.

Any specific requirements or considerations to use hibernate with DB2? No difficulties with other databases like MySQL or SQLServer-2005.


The JDBC URL used is jdbc:db2://<ip-address>:50000/<database-name>

I am a kind of stuck. Gurus, help me.