Database Appears to Hang with Deadlock Involving SYS.C_COBJ# or C_OBJ#_INTCOL# While Statistics Maintenance Job is Running
Last updated on DECEMBER 22, 2016
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 and later
Information in this document applies to any platform.
- Database hangs with an unhandled deadlock between mutex and "library cache lock"
- May also see deadlock between "cursor: pin S wait on X" and "library cache lock"
- Systemstate dumps from the hang show that the deadlock involves data dictionary objects such as SYS.C_COBJ#, SYS.C_OBJ#_INTCOL# etc.
Sign In with your My Oracle Support account
Don't have a My Oracle Support account? Click to get started
Million Knowledge Articles and hundreds of Community platforms