Failed to install Workflow

Question

I used wfinstall.csh to install Workflow. It reported error. Flowing is the content of log. How to solve it?
WFCA OUT: Error: Unable to install datasource: Cannot create connection pool. A connection pool named 'jdbc/WorkflowDS_connectionPool' already exists.
WorkflowCA: Exit Val: 1
WorkflowCA: Created a redirected data source with application WFALSNRSVCApp :
WorkflowCA: Executing :/oracle/product/11.2.0/dbhome_1/jdk/bin/java -jar /oracle/product/11.2.0/dbhome_1/oc4j/j2ee/home/admin.jar ormi://jie-rhel:6041 oc4jadmin welcome -application WFMLRSVCApp -testDataSource -location jdbc/WorkflowDS -username OWF_MGR
WorkflowCA: :nullApr 28, 2010 11:33:06 PM oracle.j2ee.rmi.RMIMessages EXCEPTION_ORIGINATES_FROM_THE_REMOTE_SERVERWARNING: Exception returned by remote server: {0}java.rmi.RemoteException: ORA-01017: invalid username/password; logon denied     at com.evermind.server.administration.DefaultApplicationAdministrator.testDataSource(DefaultApplicationAdministrator.java:1230)     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)     at java.lang.reflect.Method.invoke(Method.java:585)     at com.evermind.server.rmi.RmiMethodCall.run(RmiMethodCall.java:53)     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)     at java.lang.Thread.run(Thread.java:595)Data source jdbc/WorkflowDS is not available. for app:WFMLRSVCApp
WorkflowCA: Executing: /oracle/product/11.2.0/dbhome_1/jdk/bin/java -jar /oracle/product/11.2.0/dbhome_1/oc4j/j2ee/home/admin.jar ormi://jie-rhel:6041 oc4jadmin welcome -application WFMLRSVCApp -installDataSource -url jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=orcl))) -username OWF_MGR -password ->pwForOwfMgr -className com.evermind.sql.DriverManagerDataSource -location jdbc/WorkflowDS -xaLocation jdbc/xa/WorkflowDS -ejbLocation jdbc/WorkflowDS -connectionDriver oracle.jdbc.driver.OracleDriver
WFCA OUT: Apr 28, 2010 11:33:07 PM oracle.j2ee.rmi.RMIMessages EXCEPTION_ORIGINATES_FROM_THE_REMOTE_SERVER
WFCA OUT: WARNING: Exception returned by remote server: {0}
WFCA OUT: oracle.oc4j.sql.DataSourceException: Cannot create connection pool. A connection pool named 'jdbc/WorkflowDS_connectionPool' already exists.
WFCA OUT:      at com.evermind.server.ApplicationStateRunning.initDataSourceConnectionPool(ApplicationStateRunning.java:2064)
WFCA OUT:      at com.evermind.server.Application.createDataSourceConnectionPool(Application.java:4036)
WFCA OUT:      at com.evermind.server.administration.DefaultApplicationAdministrator.installDataSource(DefaultApplicationAdministrator.java:1809)
WFCA OUT:      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
WFCA OUT:      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
WFCA OUT:      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
WFCA OUT:      at java.lang.reflect.Method.invoke(Method.java:585)
WFCA OUT:      at com.evermind.server.rmi.RmiMethodCall.run(RmiMethodCall.java:53)
WFCA OUT:      at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
WFCA OUT:      at java.lang.Thread.run(Thread.java:595)
WFCA OUT: Error: Unable to install datasource: Cannot create connection pool. A connection pool named 'jdbc/WorkflowDS_connectionPool' already exists.
WorkflowCA: Exit Val: 1
WorkflowCA: Created a redirected data source with application WFMLRSVCApp :
WorkflowCA: Executing: /oracle/product/11.2.0/dbhome_1/jdk/bin/java -Djava.security.properties=/oracle/product/11.2.0/dbhome_1/oc4j/j2ee/home/config/jazn.security.props -Doracle.security.jazn.config=/oracle/product/11.2.0/dbhome_1/oc4j/j2ee/OC4J_Workflow_Component_Container/config/jazn.xml -jar /oracle/product/11.2.0/dbhome_1/oc4j/j2ee/home/jazn.jar -user oc4jadmin -password welcome -adduser jazn.com pwForOwfMgr <WFCA WF PASSWORD>
The specified user already exists in the system.
WorkflowCA: Created obfusticated password for redirect datasource:
WorkflowCA: Executing: /oracle/product/11.2.0/dbhome_1/jdk/bin/java -jar /oracle/product/11.2.0/dbhome_1/oc4j/j2ee/home/admin.jar ormi://jie-rhel:6041 oc4jadmin welcome -shutdown
WorkflowCA: Executed OC4J Admin script to shut down the OC4J instance :
WorkflowCA: Wed Apr 28 23:33:10 EDT 2010
WorkflowCA: Workflow Configuration has completed with error.
WorkflowCA: Terminating...

Answer 1

Undeploy workflow Components ( Notification Mailer and Agent Listenrs ) from OC4J. Once undeployed, you can re-run WFCA.
$ORACLE_HOME/jdk/bin/java -classpath $ORACLE_HOME/oc4j/j2ee/home/oc4j.jar:$ORACLE_HOME/jlib/srvm.jar:$ORACLE_HOME/oc4j/j2ee/home/db_oc4j_deploy.jar oracle.j2ee.tools.deploy.DbOc4jDeploy -oraclehome $ORACLE_HOME -inifile $ORACLE_HOME/oc4j/j2ee/deploy_db_wf.ini
Like oracle.j2ee.tools.deploy.DbOc4jDeploy , there should be abother utility to undeploy, I don't remeber right now, to undeply the deplyed applications.
One more ugly alternative is that :
remove oc4j/j2ee/OC4J_Workflow_Component_Container/application-deployments/WFMLRSVCApp/dta-sources.xml file manually. follow same for other components in oc4j/j2ee/OC4J_Workflow_Component_Container/application-deployments/ folder
Thanks
Shiv