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Instance terminated with ORA-00001: Unique Constraint (SYS.I_MON_MODS$_OBJ) Violated (Doc ID 2800813.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


DB instance terminated with below message in SMON trace file :

ORA-00603: ORACLE server session terminated by fatal error
ORA-24557: error 601 encountered while handling error 1; exiting server process
ORA-00601: cleanup lock conflict
ORA-00001: unique constraint (SYS.I_MON_MODS$_OBJ) violated


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