Category Archives: Oracle

When sending information to a ESB Web Service a java.security.PrivilegedActionException: javax.xml.soap.SOAPException: Message send failed: Connection refused is returned. Problem If you try and access a ESB webservice on a webserver other than localhost and port 8888 the following error message is returned and the ESB flow is not run: java.security.PrivilegedActionException: javax.xml.soap.SOAPException: Message send failed: Connection […]

Enterprise manager does not start after updating the database. The emdb.nohup has an ORA-20603: Updating timezone region of a target is not supported error message in it. The problem The timezones have been updated within the database. Solution As Oracle run: $ORACLE_HOME/bin/emctl resetTZ agent and follow the instructions.  You’ll need the sysman or sys password […]

Oracle XE Client does not come with sqlnet therefore you need to connect to the database using a connection string. Oracle XE Connection String username/password@[//]host[:port][/service_name] port is required if the port number is not 1521. service_name defaults to XE.

When developing BPEL and ESB applications it is necessary to see if the message you sent actually made it on the queue. Using Hermes is an excellent way to view an application server queues and topics. Problem Need to view messages on a JMS Queue or Topic that you have published a message to.   […]

By default the the password for eis/Jms/TopicConnectionFactory JMS Connection is welcome1. This needs to be changed if the oc4jadmin password is not set to this. Problem After creating an ESB process you are unable to write to a JMS topic.  The following error message is displayed in the ESB Console: The Adapter Framework was unable […]

The Oracle database is in the process of initializing or shutting down. Typically this occurs when the database service is in the process of starting or stopping. Resolution Wait for the database service to start.  If it does not start check the database alert.log to see what the underlying issue is.  

The database trying to be connected to is not running. Ensure the Oracle database is running and that the TNS entry you are using is correct. Resolution Start the Oracle Database   Windows start the OracleServiceXE service. Linux login as oracle and run dbstart.   Test TNS To test TNS run tnsping on the command […]

Oracle XE is an excellent starter database, but under normal loads the out of the box parameters need to be increased. Database Sessions Increase the number of sessions that the database can handle at one time.  This will allow for more users to access the database. sqlplus /nolog SQL> show parameters sessions SQL> alter system […]

For the oracle database Enterprise Manager (EM) runs on port 1158. But it needs to be started by itself. Linux Login as oracle and run: $ORACLE_HOME/bin/emctl start dbconsole On some systems a xserver session needs to be running for the graphs to be created correctly.  The best solution for this is to run vncserver on […]

After installing Oracle XE you should setup backups. Backups for XE For Oracle XE there is ready a backup script that uses Oracle’s RMAN.   Setup Archive Log Mode After installing the database change it to archivelog mode: [oracle@localhost ~]$ sqlplus /nolog SQL*Plus: Release 10.2.0.1.0 – Production on Sun May 25 01:28:00 2008 Copyright (c) […]