OEM Database Control Configuration gets Stuck

I encountered a situation where I was trying to configure OEM Database Control (11.2.0.4) on Windows based system using command similar to the following

emca -config dbcontrol db -repos recreate

But command was always getting stuck for hours and hours until I stop the configuration. Last line displayed at the command prompt was “INFO: Uploaded configuration data successfully”. Emca log had last few lines similar to the following

… … … CONFIG: Copying file D:\ORACLE\11204\rdbms\install\install.excl.emca.util.tmp to D:\ORACLE\11204\rdbms\install\install.excl Oct 30, 2015 4:56:11 PM oracle.sysman.emcp.util.FileUtil addLine CONFIG: File D:\ORACLE\11204\rdbms\install\install.excl is successfully updated Oct 30, 2015 4:56:11 PM oracle.sysman.emcp.util.PlatformInterface serviceCommand CONFIG: cmdType: 2 Oct 30, 2015 4:56:11 PM oracle.sysman.emcp.util.PlatformInterface isPre112Home CONFIG: oracleHome: D:\ORACLE\11204 isPre112Home: false Oct 30, 2015 4:56:11 PM oracle.sysman.emcp.util.PlatformInterface serviceCommand CONFIG: Service does not exist

After several weeks of working (also involved oracle support), I just realized that the Windows OS user name (that I was using to log in to the system) started with a number (OS user name was similar to 0148-DBADMIN). I have seen same kind of issues while using an OS user on windows that started with a special character ($, #, @ etc.).

I tried a different OS user (of course user must be member of Administrator and ORA_DBA OS groups), and this time I was able to configure OEM Successfully.

Moral of the story: OS user being used to configure Oracle/OEM should not have name starting with number of special character.