Symptoms

The following appears in the atlassian-bitbucket.log when testing a connection to an Oracle DB:

2012-10-17 15:59:55,818 WARN  [http-7990-17] bitbucket 959x29x1 1m1q59y 10.11.44.156 "POST /admin/db/edit HTTP/1.1" c.a.s.i.m.DefaultMigrationService A connection could not be opened with the DataSource java.sql.SQLException: Listener refused the connection with the following error: ORA-12514, TNS:listener does not currently know of service requested in connect descriptor
...
Caused by: oracle.net.ns.NetException: Listener refused the connection with the following error: ORA-12514, TNS:listener does not currently know of service requested in connect descriptor 

Cause

Bitbucket Server does not support connecting to Oracle servers using a TNS Alias or SID for identification - BSERV-4148 - Getting issue details... STATUS .

Resolution

As currently Bitbucket Server supports connecting to an Oracle DB only using a Service Name (refer to the "Database Name" parameter on the table you'll see on this link) you'll need to configure a Service Name for your database and specify that as a connection parameter on the "Database Name" field.

If you are not using TNS Alias to connect, then please check the JDBC URL in your bitbucket.properties file, in particular, the port number your database is listening on. The JDBC URL for Oracle is of the form:

jdbc.url=jdbc:oracle:thin:@//HOSTNAME:PORT/SERVICE_NAME