ORA-04020: Deadlock Detected While Dropping Role
(Doc ID 2415755.1)
Last updated on FEBRUARY 21, 2019
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 to 18.104.22.168 [Release 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
ora-04020: deadlock detected while dropping role, errorstack trace shows it is relevant to an object which assicoated with lots of external table.
Callstack contains "kkestExternalTabInfo" and "kketsd":
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