Contention Under Auto-Tuned Undo Retention
(Doc ID 742035.1)
Last updated on AUGUST 11, 2020
Applies to:Oracle Database - Enterprise Edition - Version 10.2.0.1 to 18.104.22.168 [Release 10.2 to 11.1]
Information in this document applies to any platform.
When using autotuned undo retention the high latch contention on 'latch: row cache objects' on dc_rollback_segments together with high enqueue contention on 'enq: US - contention' can occur.
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