working on applications and technology

It seems that configuration of the enterprise manager has really cause many problems in windows.

I met this problem in 10g, and when I install 11g, I meet this problem again.

The DBCA wizard finally pop up a window with the alert

'Enterprise manager configuration failed due to the following error - Error starting Database Control. Refer to the log file at cfgtoollogs\dbca\orcl\emConfig.log for more detail...'

The reason of failing to start the database control

In my case, the reason of failing to start the database control is due to the agent timezone, I don't know if it is a common problem or the problem just happen in my case.

To solve this problem, first we have to reset the agent timezone to the our windows' timezone setting.

1. Go to directory '$ORACLE_HOME/sysman/admin', find out in the file 'supportedtzs.lst' of a corrent timezone for your windows timezone setting.
2. Go to directory '$ORACLE_HOME/sysman/config', add one line to the last of the file 'emd.properties'. in my case, It is like

   agentTZRegion=Asia/Shanghai

3. Run the following command using emctl.

   emctl resetTZ agent

   This command will take value from the file 'emd.properties' to set the agent timezone. If the timezone is not right for your system, the command will fail with error, so you could choose another value until it could finish successfully.

Now we could use the command 'emctl start dbconsole' to start the database control and login at the browser address

https://localhost:1158/em