High Version Count Of MMON Worker SQL 3wrrjm9qtr2my Due To ROLL_INVALID_MISMATCH / Rolling Invalidate Window Exceeded (Doc ID 2470537.1)

Last updated on JULY 20, 2024

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

12.2.0.1 3wrrjm9qtr2my (Mmon Worker SQL) has more than 1000 versions:
SQL ordered by Version Count
Version Count Executions SQL Id SQL Module
1,127 3wrrjm9qtr2my
Version_rpt report shows that majority versions are created due to ROLL_INVALID_MISMATCH:
select * from table(version_rpt('3wrrjm9qtr2my'));
Versions Summary
----------------
MULTI_PX_MISMATCH :932
ROLL_INVALID_MISMATCH :2389
HASH_MATCH_FAILED :5

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In this Document

Symptoms

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