There should also be a trace file with a deadlock graph that indicates
which objects are involved. Review the alert log, track down the trace
file and use the information there to identify everything involved. It
may provide a clue.

-----Original Message-----
From: Vishal
[mailto:oracledba-ezmlmshield-x82513708.[Email address protected]
Sent: Wednesday, January 09, 2008 5:32 AM
To: LazyDBA Discussion
Subject: EXP-00008: ORACLE error 4020 encountered

hi all
i am takin export of a owner and getting this error.


EXP-00008: ORACLE error 4020 encountered
ORA-04020: deadlock detected while trying to lock object
SYS.CDC_ALTER_CTABLE_BEFORE
EXP-00000: Export terminated unsuccessfully


what steps should i take?



Thanks & Regards.
********************************
Vishal Srivastava

*********************************


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