How to Quickly Ignore ORA Error on Agent Layer

I had a very specific situation where I wanted to ignore an error from a specific agent. It turns out that it is easier and quicker to ignore a specific error using an OEM Metric. How? By using an agent parameter. adrAlertLogErrorCodeExcludeRegex.

How to do it?

In [AGENT_INST]/sysman/config/emd.properties, add a line with these parameters and the Regex to ignore the desired error or message.

Ignoring all ORA-700, for example, can be done by:

adrAlertLogErrorCodeExcludeRegex=.*700.*

Now to ignore specific errors, for example, ORA 700 [kskvmstatact: excessive swapping observed]:

adrAlertLogErrorCodeExcludeRegex=.*kskvmstatact.*

After this parameter inclusion, a restart on the agent is required.

This is also well-documented as per MOS EM 12c, 13c: How to Disable or Suppress OEM Alerts for Alert Log Error ORA-700 (Doc ID 2406779.1)

Hope this helps!