Manually trigger metric collection in Grid Control

Metric Collection errors are generally down to the following reasons:

• Configuration Error as described above
• Temporary Collection Errors
• Oracle Bugs 

Reevaluating Metric Collections
If you are running a Management Agent Release 10.2, then you can use the following command to perform an immediate reevaluation of a metric collection:
emctl control agent runCollection <targetName>:<targetType> <colletionItemName>
emctl control agent runCollection testdb.us.oracle.com:oracle_database oracle_dbconfig

1. Run "emctl config agent listtargets" to list all the targets in the agent
2. Run "emctl control agent runCollection"
3. Eg : To manually upgrade mgmt$tablespaces
   
   emctl control agent runCollection testdb.us.oracle.com:oracle_database oracle_dbconfig

Checking scheduler status

> emctl status agent scheduler