Short one this time, all in favour of getting my green ‘pie’ in Grid Control management server.

Grid Control: 10.2.0.5. Discoverer: 10.1.2.x
In Grid Control, after upgrade to 10.2.0.5, a Discoverer target shows down in the list, while it’s functioning quite well.

It seemed an old bug (Grid Ctrl 10.1.04) is still not fixed:
– Bug 4474849 / 3897834 ‘DISCOVERER INSTANCES ALWAYS SHOW DOWN’
– Note: 332363.1

Solution:

1- Remove the Application Server target which owns the Discoverer component (10.1.2) in the Grid Control

2- Stop the agent

3- Backup the file %CENTRAL_AGENT_ORACLE_HOME%/sysman/admin/metadata/oracle_discoverer.xml file.

Replace this file by:

%BI_ORACLE_HOME%/sysman/admin/metadata/oracle_discoverer.xml file

BI_ORACLE_HOME corresponds to the Oracle_Home where Discoverer 10.1.2 is installed.

4- Restart the agent

5- Rediscover the Application Server target on the host, by typing (Agent-environment)  ‘agentca -d’.

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