This may indicate a problem with a state file in the $ORACLE_HOME/<HOST_SID>/sysman/emd directory -- one of the files may be corrupt.
You may want to reinstantiate the <HOST_SID> directory used by the Database Control.
- Set the oracle_sid and oracle_home environment variables.
- Use emca to remove the host_sid directory under the oracle_home:
emca -x orclNote that orcl will be the name of the sid you set in the environment.
- On Windows, ensure that the dbconsole service has been deleted from the services control panel. On occasion, it may show that the service is merely marked for delete, with a status of DISABLED in the control panel. This will be resolved by a system reboot.
- Use emca to rebuild the host_sid directory:
- Retry the shutdown command from Database Control.
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