Tag Archives: ORA-04031

Error unable to allocate 4160 bytes of shared memory

This note apply to Oracle Database Enterprise Edition – Version 11.2.0.1 to 11.2.0.3 Symptoms: The system appears to be running very slowly and defunct processes can appear. Errors are seen in the alert log or Trace log : 1. ORA-04031 ORA-04031: unable to allocate 4160 bytes of shared memory (“shared pool”,”unknown object”,”sga heap(1,0)”,”modification “) Incident […]

ORA-00845 When starting Up an 11g Instance with AMM

This note apply to Oracle Database 11g and linux S.O.   On a Linux system, trying to start up an 11g instance could fail with the following error: ORA-845: MEMORY_TARGET not supported on this system In the alert log, you could or could not see the below messages: ORA-04031 errors.   The problem occur when […]