JDBC Connector in NetWeaver Dev Studio WebAS

Question

Hello,
I am attempting to deploy a web module that utilizes a WebAS datasource for an external Oracle database. I expect to add a JDBC Connector leveraging the Oracle JDBC driver. I have been unable to deploy the Oracle datasource.
I receive the stack trace below whenever I attempt to Start the datasource. I find many posts asking about this error but never have I found an answer as to the cause or resolution. OSS Note 751175 describes this as a classloader problem with connectors but it does not offer any repair method that works with this problem (in my case).
I've had this problem with NetWeaver SP7 and it remains with SP10.
Does anyone have explanation? Can I expect to test such applications in NetWeaver's standalone WebAS?
Best regards,
Gary
ava.rmi.RemoteException: Error occurred while starting application in whole cluster and wait.; nested exception is:
     com.sap.engine.services.deploy.exceptions.ServerDeploymentException: Clusterwide exception: server ID 4114150:com.sap.engine.services.dbpool.exceptions.BaseDeploymentException: Cannot create DataSource "CMR".
     at com.sap.engine.services.dbpool.deploy.ContainerImpl.startDataSources(ContainerImpl.java:1836)

Answer 1

Hello Benny,
One of my co-workers resolved the problem which boiled down to driver configuration confusion. Here's what we learned:
No SDA component was required though this was a good exercise for us to go through.
The driver (JAR or ZIP) file can be added simply using the Visual Administrator JDBC Connector Runtime tab.
We were not able to activate more than one type of datasource at a time (feature, bug or something else?)
The following configurations start okay:
**Starts***
Driver: Oracle's classes12.zip
JDBC Version: 1.x
Driver class: oracle.jdbc.driver.OracleDriver
Database URL: jdbc:oracle:thin:@host:port:instance
User&Password specified.
**Starts***
Driver: Oracle's 1.4 ojdbc14.jar
JDBC Version: 2.0
Driver class: oracle.jdbc.pool.OracleDataSourceFactory
Datasource type: ConnectionPoolDataSource
CPDS Classname: oracle.jdbc.pool.OracleConnectionPoolDataSource
Additional properties:
URL = jdbc:oracle:thin:@host:port:instance
User = xxxx
Password = yyyyy
**Will not start but the failure is expected***
Driver: Oracle's classes12.zip
JDBC Version: 1.x
Driver class: oracle.jdbc.pool.OracleConnectionPoolDataSource
Database URL: jdbc:oracle:thin:@host:port:instance
User&Password specified.
We do need to run multiple datasources using Oracle and Sybase so I'm hoping the issue we encountered is simply configuration issues again.
I appreciate your time and feedback Benny!
Best regards,
Gary