Sometimes there is error like following when you access you enterprise management console:
503 Service Unavailable
Service is not initialized correctly. The Em Key is not configured properly. Run "emctl status emkey" for more details.
This might be some file owner error and you need to rebuild your emkey file, the solution is:
1. check your $ORACLE_HOME directory(and subdirectory), make sure all files are owned by user oracle(or any other user that you install oracle software).
2. reconfigure your emkey with following commands:
[oracle@cs66 oracle]$ emctl status emkey
TZ set to PRC
Oracle Enterprise Manager 10g Database Control Release 10.2.0.4.0
Copyright (c) 1996, 2007 Oracle Corporation. All rights reserved.
Please enter repository password:The Em Key is configured properly, but is not secure. Secure the Em Key by running "emctl config emkey -remove_from_repos".
[oracle@cs66 oracle]$ emctl config emkey -remove_from_repos
TZ set to PRC
Oracle Enterprise Manager 10g Database Control Release 10.2.0.4.0
Copyright (c) 1996, 2007 Oracle Corporation. All rights reserved.
Please enter repository password:The Em Key has been removed from the Management Repository.
Make a backup copy of OH/sysman/config/emkey.ora file and store it on another machine.
WARNING: Encrypted data in Enterprise Manager will become unusable if the emkey.ora file is lost or corrupted.
[oracle@cs66 oracle]$ emctl status emkey
TZ set to PRC
Oracle Enterprise Manager 10g Database Control Release 10.2.0.4.0
Copyright (c) 1996, 2007 Oracle Corporation. All rights reserved.
Please enter repository password:The Em Key is configured properly.
3. now you may login into your EM console to check again, it’s back now, :)
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