ORA-12751
What is ORA-12751? ORA-12751 is a generic error which can occur during a resource exhausted condition. Oracle definition for the particular error is below. ora12c@racaprdb1:~$ oerr ora 12751 ora-12751 cpu time or run time policy violation" // *Document: NO // *Cause: A piece of code ran longer than it is supposed to // *Action: If this error persists, contact Oracle Support Services. ora12c@racaprdb1:~$ ORA-12751 example In the given example one of the rac databases was not accepting connections intermittently. Alert log contained ora-12751 errors as below and TNS timeouts were also recorded. 2020-07-14T12:59:34.407693+05:30 MOBPDB(3):minact-scn: useg scan erroring out with error e:12751 2020-07-14T13:02:23.311541+05:30 Thread 1 advanced to log sequence 145866 (LGWR switch) Current log# 2 seq# 145866 mem# 0: +MOBREDO1DG/MOBCDB/ONLINELOG/group_2.258.989494005 Current log# 2 seq# 145866 mem# 1: +MOBREDO2DG/MOBCDB/ONLINELOG/group_2.2...