ORA-1555 reported inspite of high undo_retention and enough UNDO space.
(Doc ID 1574714.1)
Last updated on FEBRUARY 27, 2019
Applies to:Oracle Database - Enterprise Edition - Version 188.8.131.52 and later
Oracle Database Cloud Schema 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
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
ORA-1555 is being reported inspite of high values set for the undo_retention and enough space in the UNDO tablespace.
o setting "_smu_debug_mode" = 33554432 didn't help.
o Tried many settings for UNDO_RETENTION, also didn't work.
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