ERB279I

Explanation
While RMF™ was
initializing Monitor III data gatherer session sid,
an error occurred. The error could be either: A system overload.
Procedure RMFGAT missing from SYS1.PROCLIB.

System action
RMF stops
initializing the data gatherer but continues processing all other
active sessions.

System programmer response
  Try to start session sid again
after other address spaces have ended. Check SYS1.PROCLIB for RMFGAT;
if missing, install them in the library.

Source
Resource Measurement Facility™ (RMF)

Routing code
2

Descriptor code
4,5